Principal Engineer Jobs in Glendale, CA

Performs duties of a technical and often complex nature including determining the code compliance of building products, materials and methods; developing ICC-ES acceptance criteria; and writing ICC-ES evaluation reports. This position can be located out of Birmingham, AL or Brea, CA. Position Responsibilities: Evaluates test reports, calculations, and other technical data submitted by evaluation-report applicants. Develops technical criteria for the acceptance of innovative building products, materials and methods that are alternatives to what may be specified in the building code. Prepares correspondence and draft reports regarding the code compliance of products. Provides expert assistance to building departments throughout the United States. Participates in ICC-ES Evaluation Committee hearings. Represents ICC-ES on matters of interest at meetings of technical bodies and at meetings with representatives of government and industry. Keeps abreast of developments in the building construction field. Travels as necessary to attend conferences, meetings, speaking engagements, and other functions. Performs other tasks as directed. Interested or willing to evaluate products such as, but not limited to, glass guardrails, structural insulated panels, metal composite panels, magnesium oxide boards, plastic sheathing, plastic composite decking, along with other materials besides your basic steel, concrete, and wood products. Requirements: Essential Skills and Education / Experience: University degree in civil or structural engineering. Professional registration/license to practice engineering. Career-level proficiency in at least one engineering specialty, and foundation-level proficiency in at least one additional specialty. At least five years of experience in the construction industry, building code development or enforcement, or product testing; or equivalent experience as determined by ICC-ES. Experience with modern design and construction methods and materials. Preferred indications of competence to fill the position: Ability to communicate effectively, verbally and in writing, with both technical and non-technical personnel. Ability to independently solve complex engineering problems. Ability to work as part of a team to deliver professional services. Ability to demonstrate knowledge of the codes and of design standards. Ability to demonstrate knowledge of test standards and methodologies. Ability to demonstrate knowledge of quality control processes for the manufacture of building products. Contributes to development through membership in relevant technical organizations such as ASTM, ACI, UL, etc. Contributes to development through membership on a technical committee of a standards-writing organization. Ability to manage multiple priorities. Provides excellent customer service. Leads by example, establishing his or her technical expertise. Proficient in seismic design would be considered a plus. Experience with product testing in general would be considered a plus. Experience with fire testing would be considered a plus. If one has extensive fire testing experience, consideration would be give to one with a mechanical, civil, or structural engineering degree. Compensation details: 90000-140000 Yearly Salary PIc697fab0bfd2-26***********3

General Purpose of Job: Calnetix is a design and manufacturing company that is primarily focused on high-speed permanent magnet synchronous machines, power electronics, magnetic bearings, and associated controls. Candidate will join the engineering team, using our high-speed high power permanent magnet machines, power electronics, and magnetic bearing controllers to change the electric machine industry. The Senior Power Electronics Engineer will be responsible for all aspects of power converter design, test, debugging, and project execution. In this role, you will design innovative power converter products for industrial, aerospace, and military applications and lead the product development process from concept realization through introduction of product into high volume production. Essential Duties and Responsibilities: Evaluate customer/project requirements and selecting appropriate topologies for DC/AC and DC/DC applications Perform as a design engineer for power electronics products including all essential engineering analysis aspects from initial planning stages through study, design, and test. Design, develop and test advanced power electronics (up to hundreds of kW), such as converters and inverters, using medium to high power switching components and associated protection and gating circuitry. Selecting active semiconductor switching devices as well as passive components required for converter power circuits (capacitors, inductors, transformers, etc). Lead verification testing on new designs and products Analyze switching and transient behavior of devices to determine limits, proper gating, operation and implementation Design analysis including modeling, simulation, and control loops Optimize designs with an eye toward efficiency, density, and cost Conduct design reviews and follow NPI process Perform hands-on lab work building and debugging prototypes Perform electrical characterization, design validation, and qualification Introduce the product into production Provide technical support for production and field product issues Collaborate in cross-functional teams Required Skills, Experience, Education, and Abilities: BSc or MSc in Electrical Engineering with focus on power electronics and having +5 years of industry experience. PhD is plus. Strong understanding of power inverters operation and design Good understanding of 3-phase power systems Strong skillset of debugging power electronics circuits Experience with space vector, sinusoidal, and/or discontinuous PWM schemes. Strong knowledge of digital, analog and power electronic circuits Experience with SiC and GaN devices-based power converter design Strong circuit simulation experience (Matlab Simulink/PLECS/ LTSpice) Strong interpersonal, communication, presentation and technical writing skills Self-motivated, detail oriented, strong team player Strong problem-solving skills and the ability to think creatively Ability to drive projects to completion Ability to work in a team environment and on several projects simultaneously Ability to prepare test reports, conclude the outcome of test results, provide the next steps in test plan, and present it to management level Advanced computer skills with emphasis on MS Office products Desired Skills and Experience Perform power electronic circuit design (create schematic symbols and layout footprints, design schematic and layout, and create BOM) in Altium Magnetics design and optimization High frequency magnetics design knowledge Ability to drive, understand and adhere to product roadmaps, define new platforms, and extend products for power inverters (DC/AC) Create high density PCB layout with noise and EMI mitigation Intangibles Sought: Detail oriented with excellent time management skills. Strong blend of analytical, decision-making and creative problem-solving skills. Team player with a willingness to learn, teach and help. Strong verbal and written communication skills. Excellent problem solving and troubleshooting skills. Physical Demands / Work Environment: 10% travel may be required. Calnetix offers its employees competitive salaries and bonus, commensurate with qualifications and experience, as well as comprehensive benefits including: 401(k) Program Medical, Dental, Vision and Life Insurance Vacation Paid Holidays Office closure for the week between Christmas and New Year Holiday Health Care Flexible Spending Account Plan Salary Range: $140,000-$190,000 DOE + Performance Bonus The above job description is not intended to be an all-inclusive list of duties and standards of the position. Incumbents will follow any other instructions, and perform any other related duties, as assigned, by their supervisor. Management reserves the right to change, rescind, add or delete the duties and responsibilities of positions within this job classification at any time. Calnetix is an equal opportunity employer and prohibits discrimination based on race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, or veteran status. This policy applies to recruiting, hiring, transfers, promotions, terminations, compensation and benefits and also states that retaliation against any employee who files a complaint regarding possible violations of this policy will not be tolerated. Calnetix will not sponsor for immigration, including for H-1B, TN and other non-immigrant Visas, for this role.

Are you a top 1% mechanical engineer looking to build first-of-their-kind machines that will reshape an industry? A stealth startup in Southern California is tackling critical challenges in mining and industrial automation. We're seeking an elite mechanical engineer who thrives in high-autonomy environments, operates with urgency, and is driven to build groundbreaking technology. As the first mechanical engineer in this domain, you'll own your product vertical and have the opportunity to build a team around you. This role is for someone who has designed, built, and tested complex industrial-scale machinery at world-class engineering companies or startups. What You'll Do Design, develop, and test highly complex mechanical systems for industrial applications Drive the full product lifecycle from concept to production Work hands-on with hydraulics, structural design, and drive mechanisms Utilize CAD (NX, SolidWorks) and FEA tools (ANSYS, Abaqus) to optimize performance Collaborate closely with a team of top-tier engineers in a fast-paced, execution-driven environment What You Bring 8+ years of experience designing and testing industrial-scale mechanical systems Proven ability to lead mechanical design in a startup or small engineering team Expertise in hydraulic systems, drive mechanisms, and structural design Deep understanding of manufacturing processes and material selection Engineering degree from a top-tier university (MIT, Caltech, Stanford, Berkeley, Michigan, etc.) A track record of solving critical engineering problems with speed and precision Why Join? Work on cutting-edge industrial automation technology that has never been built before Collaborate with a team of world-class engineers in Southern California Uncapped growth potential - shape the future of the company and build your own team Competitive compensation, 100% healthcare coverage, and all meals provided in-office Housing assistance near the office and potential for global travel Employee Benefits 100% healthcare coverage (medical, dental, vision) All meals covered (breakfast, lunch, dinner) Can help provide housing close to the office Generous early stage equity If you're obsessed with solving hard engineering problems and want to work alongside the best, apply now. We're looking for A+ players who elevate the entire team.

As a Senior Mechanical Engineer with our client you will be directly responsible for designing the hydraulic, fluid circulation, and actuation systems at the core of our next-generation drilling rigs. From concept to field deployment, you'll collaborate across teams to deliver robust, safe, and efficient systems that withstand the toughest conditions. You will be joining at the pre-seed level of the company, and have a critical role in developing the future of the company and products. If you're looking to have the biggest impact in your professional career - please reach out. If you're looking for a job where you make the most amount of money and where you work the least for that money, please don't apply. Note: You don't need mining or drilling experience to excel in this role. What You'll Do: •Design and prototype mechanical systems and components for autonomous drilling rigs, including hydraulic systems, drive systems, and structural elements •Integrate mechanical designs with electrical, control, and software systems •Perform simulations, stress analysis, and finite element analysis to ensure the durability and performance of components in harsh operational conditions •Outline and perform testing and validation of new designs at a subsystem and integration level, iteratively making necessary modifications to achieve the desired objective •Optimize mechanical systems for performance, weight, cost, and manufacturability •Conduct field visits to understand operational challenges and implement improvements to enhance performance and reliability in real-world conditions •Produce documentation outlining design choices, test results, and future improvements Qualifications •Experience in mechanical design, preferably in heavy machinery, drilling equipment, or autonomous systems Who You Are: Experience in mechanical design, preferably in heavy machinery, drilling equipment, or autonomous systems Proficiency in CAD software (NX, SolidWorks, or similar) Experience with FEA tools for stress analysis and simulation (e.g., ANSYS, Abaqus) Strong understanding of hydraulic systems, drive mechanisms, and structural design Knowledge of manufacturing processes, materials, and tolerances Ability to work in a fast-paced and collaborative environment to rapidly prototype and manufacture new products Experience with field testing and working in rugged environments The role will pay between 150k - 180k and you will receive generous equity. You'll have total freedom to succeed, all meals are covered at HQ and healthcare is covered 100% as well. You must be willing to work extended hours and weekends as needed.

As a Senior Mechanical Engineer, you will be directly responsible for designing the hydraulic, fluid circulation, and actuation systems at the core of our next-generation drilling rigs. From concept to field deployment, you'll collaborate across teams to deliver robust, safe, and efficient systems that withstand the toughest conditions. Note: You don't need mining or drilling experience to excel in this role. RESPONSIBILITIES Design and prototype mechanical systems and components for autonomous drilling rigs, including hydraulic systems, drive systems, and structural elements Integrate mechanical designs with electrical, control, and software systems Perform simulations, stress analysis, and finite element analysis to ensure the durability and performance of components in harsh operational conditions Outline and perform testing and validation of new designs at a subsystem and integration level, iteratively making necessary modifications to achieve the desired objective Optimize mechanical systems for performance, weight, cost, and manufacturability Conduct field visits to understand operational challenges and implement improvements to enhance performance and reliability in real-world conditions Produce documentation outlining design choices, test results, and future improvements QUALIFICATIONS Experience in mechanical design, preferably in heavy machinery, drilling equipment, or autonomous systems Proficiency in CAD software (NX, SolidWorks, or similar) Experience with FEA tools for stress analysis and simulation (e.g., ANSYS, Abaqus) Strong understanding of hydraulic systems, drive mechanisms, and structural design Knowledge of manufacturing processes, materials, and tolerances Ability to work in a fast-paced and collaborative environment to rapidly prototype and manufacture new products Experience with field testing and working in rugged environments IN THIS ROLE, YOU WILL Own a product vertical with the opportunity to build a team around yourself over time Work directly with our internal and external customers to drive our roadmap Get to build alongside the best engineers and mining operators in the world Be given autonomy and virtually unlimited room to grow Travel all over the world THIS MIGHT BE A GOOD FIT IF YOU Bias to action, take pride in your work and care more about getting to the right solution than being right Have led critical projects or initiatives Have extensive experience shipping modern, full-stack hardware Are product-minded and user-driven Are excited to work in a fast-paced environment with high stakes and quick iteration cycles Are a previous or future founder Can work from our Los Angeles headquarters (El Segundo)

We are seeking an experienced Senior Mechanical Engineer to take a leading role in designing and engineering HVAC, piping, and hydronic systems for projects of moderate to large scale. This role involves applying advanced engineering principles to ensure the delivery of safe, reliable, and energy-efficient solutions. The ideal candidate will be skilled in developing designs, reviewing project specifications, and collaborating with construction teams to optimize system performance. Key Responsibilities: Analyze project requirements, review RFP documents, and assess major system components to ensure compliance with specifications and industry standards. Develop technical drawings, specifications, control sequences, and system documentation for complex projects. Evaluate existing designs, propose value-engineered solutions, and recommend modifications for improved efficiency and cost-effectiveness. Collaborate with preconstruction teams to develop conceptual designs, support estimating efforts, and participate in client interviews. Work closely with construction teams to address design feasibility, sequencing, and field conditions. Ensure that all deliverables, including drawings and reports, meet scope, budget, schedule, and quality standards. Provide guidance and mentorship to junior engineers, designers, and drafters, overseeing project workflows. Conduct peer reviews of engineered systems and offer insights to improve design accuracy. Represent the company professionally in interactions with clients, architects, vendors, and contractors. Qualifications: 8+ years of experience in HVAC, piping, and plumbing system design. Bachelor's degree in Mechanical Engineering required. Strong understanding of load calculations, energy modeling, and system analysis tools. Proficiency in Revit and AutoCAD for design and drafting. Strong problem-solving skills with the ability to analyze, conceptualize, and optimize mechanical systems. Effective communicator who thrives in team-oriented and cross-functional environments. Ability to work independently and collaboratively, balancing multiple priorities in a fast-paced setting. Experience leading teams and mentoring junior engineers. Professional Engineer (PE) license required. LEED AP certification preferred. Proficiency in Microsoft Office Suite (Word, Excel, Outlook).

: APIC Corporation, headquartered in Culver City, California, is a pioneer in photonics technology development with a 25-year history. The company specializes in chip-scale optical links and networks for chip-to-chip data communications. APIC's cutting-edge proprietary technologies have been developed over two decades, supported by $150 million in government contracts, including sponsorship from DARPA and the US Navy. Currently, APIC is transitioning from research and development to prototyping and volume production of photonically enhanced edge and embedded computers and servers, with the ultimate goal of building high-performance computers and supercomputers. Biographical information on CEO and CTO appear at the bottom of this announcement. Job Description: APIC Corporation is seeking highly skilled and experienced engineers or scientists who are U.S. citizens or current green card holders. This senior role involves developing novel silicon photonics components and photonic integrated circuits (PICs), and leading a team of junior, yet highly qualified, engineers and scientists. The PIC development team is crucial for building the next generation of embedded processors, data centers, high-performance computers, and supercomputers. Responsibilities span from concept design, modeling, and simulation to layout, fabrication, packaging, and product testing. This role requires both supervisory and hands-on involvement as needed. Responsibilities: Lead, supervise, and manage a small team to: · Design, model, and simulate passive and active silicon-photonic devices, circuits, and entire wafers using state-of-the-art electronic design automation (EDA) tools. · Design, model, and optimize silicon photonic fabrication processes. · Develop test plans and execute device and PIC testing and characterization measurements. · Coordinate packaging and chip interface requirements and light source specifications with other APIC teams. Report team activities and progress to APIC management and customers/stakeholders. Interact and coordinate directly with silicon photonic foundry engineers. Manage team resources and schedules. Mentor junior team members. Qualifications: · U.S. citizen or current green card holder. · Ph.D. in Electrical Engineering, Physics, or a related field with a focus on Integrated Photonics, and at least 5 years of direct experience in designing silicon photonics devices. · Proficiency in Lumerical simulation and layout design. · Practical experience with the tape-out process at a silicon photonics foundry, including familiarity with its PDK and foundry processes. · Expertise in passive optical components, such as edge grating couplers, directional couplers, MMIs, MRR/MDR-based modulators/filters, and Ge photodetectors. · Experience with photonic foundry processes is essential. · Knowledge of laser design is a plus. · Hands-on experience with photonic testing equipment. · Excellent analytical and problem-solving skills. · Strong communication skills and a proven ability to work both independently and in leadership positions.

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We're designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts. Senior Power Electronics Engineer (Role can be based in Allen, TX OR Torrance, CA) Castelion is seeking a high performing Senior Power Electronics engineer to lead the architecture, design, and development of power systems across the missile. In this role you will be responsible for both high level architecture and detailed design, delivering power from a few W to many kW across Castelion missile systems; including high power radar seeker systems, BLDC motors, digital computers, radios, batteries, and other vehicle systems. The role will coordinate closely with Castelion's engineering leadership and architect designs for future Castelion vehicles and ground systems. A successful candidate will have significant experience delivering highly manufacturable power electronics hardware with extreme reliability for mission-critical applications in a fast-paced environment. Responsibilities Missile-Level Development. Take ownership of the entire power architecture, starting at the missile level. Research and design to external interface definitions, internal subsystem power predictions, and anticipated customer requirements. Work on electrical power system and sub-system level design trades and develop requirements. Define and perform electrical power system verification testing and analysis. Take ownership of key data products (power tree, sequencing diagrams, fault analyses, etc) that keep the broader team in-sync regarding power. Become the subject matter expert at Castelion for all things power. Seeker-Level Development. The seeker is anticipated to be the most demanding subsystem power design. Work with the seeker team to develop a detailed design that is compliant, affordable, feasible, and manufacturable at scale. Provide engineering expertise in design, analysis, and testing of DC-DC power converters for harsh environments operating at a few kW. Battery Development. Research candidate battery chemistries and present the trades to the broader engineering team. Drive Castelion battery programs through all phases of development, from R&D to prototype, mass production, and in-field performance. Own cell and pack level technical design, optimizing for safety, performance, cost, and manufacturability. Lead Team in Fast-Paced Environment. Lead design reviews and system architecture reviews for power relates systems. Demonstrate daily/weekly cadence of development progress and prototype design cycles every four weeks. Complete design and requirement reviews ahead of build and capture value from high cadence testing and prototype builds. Implement and Manage Castelion Avionics Standards including modeling, PCBA rules, derating, and naming conventions. Responsible for building out quality/reliability standards including EEE part sourcing and acceptance/qualification testing of your designs. Basic Qualifications Bachelor's degree in electrical engineering 5+ years of experience in power converter development Previous experience with DC-DC power converter development Experience in modeling, simulation, and testing of power electronics Experience with high power DC applications (2kW) in small form-factors Experience in modeling, simulation, and testing of power electronics. Preferred Skills and Experience Missile Experience. Demonstrated ability to design, order, and integrate flight power systems in missiles, from initial power budgets to scaled production. Strong grasp of DC-DC topologies, with ability to select optimal architectures and components. Experience or clear understanding of how to design for harsh missile environments. Familiarity with the relevant MIL specs, how to design to meet them, and how to test against them. Design for Cost. Demonstrated ability to include cost in both architecture and design decisions. Cost includes the total cost of having a component in a system (part cost, assembly cost, failure rates, reworkability, etc.). Ability to work with cross-disciplinary team to drive cost out of system. Full Life-Cycle Development. Ability to creatively solve problems and weigh against multi-disciplinary requirements together while assessing risk and making design and development decisions. Understanding of electrical schematics and electronics manufacturing to analyze and improve test coverage. Hands-on experience with sizing, installing and troubleshooting various power components. Leadership Qualities Bias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to personally resolve minor issues in development without requiring significant support. High Commitment, High Initiative. A successful candidate will have a genuine passion for Castelion's mission and consistently look for ways to contribute to the company's technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity. Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity. ITAR Requirements: To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Are you looking to work in an exciting and fast-paced environment? Does designing and integrating test systems and Test Program Sets (TPS) sound like something that would interest you? We deal with some of the biggest names in commercial and military electronic systems and sub-systems, and we're looking for some bright engineers to join our team. Marvin Test Solutions We are a premier aerospace Test & Measurement company located in Irvine, California. Innovation has been at the center of MTS since 1988. We're dedicated to advancing our customers' success by designing and delivering innovative test solutions that combine quality, performance, and ease of use. We're growing and searching for qualified test engineers for our new programs. Your role as ETD Engineer Design and integration of hardware and software are just a part of your daily duties. You'll also be working closely with members of your team to test, assemble, and validate various test systems and programs. Some of the other duties involved include: Design, configure, and manufacture customized ATE systems and Test Program Sets development Perform circuit analysis of complex systems, sub-systems, LRUs and, SRUs to identify the necessary system resources for test system development Establish all HW and SW requirements for test systems, ITAs, cables, and harnesses using COTS items when possible Select and procure materials and parts Generate required documentation, test procedures, schematics, wiring diagrams, specifications, mechanical drawings, and work orders Participate in PDRs, CDRs, and Acceptance Test Procedures with project teams and customers Perform hands-on test code generation, HW/SW debug, integration, fault isolation, and diagnostics What qualifies you? We're always looking for curious, hard-working candidates that are willing to learn tricks of the trade. Since the role is highly technical, certain requirements are a must for us to consider you for the role: BSEE or equivalent Thorough understanding of analog & digital electronic circuits 3 years' experience designing circuits using schematic capture packages such as Altium, Orcad, Cadence Proficient with standard test instrumentation and equipment such as DMMs, Oscilloscopes, Power Supplies, Function Generators, Data Acquisition Systems, DIO Your potential contribution Possessing excellent analytical and troubleshooting skills will serve you in this role. An ability to prepare and present technical data and engineering reports to development team members and customers is also a must. In addition to that, experience or knowledge of the following is a big plus: Designing analog and digital circuits Developing TPSs for microprocessor-based circuits, and MIL-STD-1553/MIL-STD-1760 products Windows-based test software development with design tools such as ATLAS, ATEasy, LabView, Visual Basic, Visual C++, LabWindows, etc. (3 years minimum) Proficient with Microsoft's suite of programs (Outlook, Excel, PowerPoint, Project and Word) Perks & Benefits We offer a comprehensive and competitive benefits package, with exceptional health care coverage options and premiums unmatched in the industry. Our commitment to a healthy work-life balance promotes peace of mind whether you're in the office or at home with your family. 100% coverage of top-notch medical, dental, and vision health premiums for you and your dependents by the company. Long term disability options Maternity/Paternity leave (eligibility determined by state) 401(K)- with matching plan Legal plan Paid Basic Life and AD&D Insurance Benefit Paid Long Term disability Voluntary insurances available including Critical Illness, Accident Insurance and additional Life and AD&D Minimum 2 weeks of paid vacation + paid holidays+ sick time. Starting Personal Time Off (PTO) is 25 days per year. Flexible spending accounts (FSA) Professional development training and options for tuition reimbursement Non-stop team fun activities including bagel Fridays, monthly birthday celebrations, quarterly lunches, and annual picnics. Corporate swag bag for new employees Join our Mission Dedication, Innovation, Recognition, and Courtesy are our core values at Marvin Test Solutions. We are an equal opportunity employer committed to a diverse workforce, and we consider this to be the foundation empowering both professional success and personal fulfillment. If this resonates with you, send your resume to *******************.

Step into the revolution. Arena Club is not just disrupting the collectibles market-we're igniting a seismic shift in the industry. Imagine being part of a company that will soon be a household name, one that visionary leaders like 5x World Series Champion Derek Jeter and trailblazing entrepreneur Brian Lee are propelling into the stratosphere. We're redefining sports cards and memorabilia with the first-ever digital card show, built on rock-solid trust, transparency, and an exhilarating passion for the game. This is your chance to join the team before we become the next Uber or Google of collectibles. Role Overview Join our fast-growing startup in West Los Angeles as a Senior Backend Engineer and help build the backbone of our platform. We are a dynamic, high-growth company where your work will have a direct impact on product success and scalability. This position is in-office, fostering a fun and collaborative environment, with flexibility for a hybrid arrangement to accommodate personal needs as life comes up. Key Responsibilities Design, build, and maintain scalable backend applications and APIs using Node.js, TypeScript, and Postgres Leverage AI-powered coding tools (e.g., GitHub Copilot, Tabnine) to improve development speed, code quality, and system reliability Architect and optimize systems for high scalability and performance as the business rapidly expands Implement third-party integrations and external APIs to enhance the platform's capabilities Develop and maintain internal tools that support fulfillment operations, internal workflows, and machine learning initiatives Collaborate cross-functionally with product, data, and frontend teams to ship high-impact features quickly Ensure backend systems are secure, well-documented, and thoroughly tested Qualifications 5+ years of experience as a professional backend engineer Strong proficiency in Node.js, TypeScript, and Postgres Proven experience building and scaling eCommerce or online marketplace platforms Passion for using the latest AI coding tools and AI-driven best practices to enhance development workflows Deep understanding of cloud platforms (AWS or GCP) and containerization/infrastructure-as-code tools (Docker, Terraform) Ability to move fast and iterate quickly in a startup environment while maintaining high code quality Excellent problem-solving skills and the ability to communicate technical trade-offs effectively Tech Stack Languages & Frameworks: TypeScript, Node.js, Python Database: Postgres Cloud & Infrastructure: AWS (S3, SQS, etc.) and/or GCP, Docker, Terraform AI Development Tools: AI-powered coding assistants (e.g., GitHub Copilot, Tabnine), LLM-based development enhancements Location West LA office - primarily in-office 5 days a week to foster a collaborative environment, with flexible hybrid options available to accommodate personal needs.

Senior Mobile Engineer - Onsite (Santa Monica) - Up to $200,000 - Equity - 401k -Medical/Dental/Vision - Well-funded, Start-up, Flutter & Native iOS/Android The Company This company is a rapidly growing start-up based in Los Angeles. They are backed by Andreessen Horowitz, Abstract VC, and one of the Founders of YouTube. They are in hyper-growth mode and are a mobile-first platform focused on live streaming and real-time communication. Skills/Requirements: 4+ years of Mobile Engineering experience Experience with one of the following - Flutter/Dart, iOS/Swift & SwiftUI, Android/Kotlin Experience with Migration Projects - Flutter>Native Experience with real-time media streaming (WebRTC, RTMP, HLS, etc) Live-streaming applications Start-up Experience The Position You will be working on a very exciting product, driving innovation from within. You will be tasked with migrating an existing Flutter codebase to native iOS and Android. Flutter experience is preferred, but not a deal breaker. This company looks for strong engineers as they know good programmers can pick up new tools and languages seamlessly. If you're an experienced Senior Mobile Engineer looking to move into a position with a rapidly growing, innovative business, this is for you! Apply now! Interviews are commencing for this position very soon. Don't let it pass you by! Senior Mobile Engineer - Onsite (Santa Monica) - Up to $200,000 - Equity - 401k -Medical/Dental/Vision - Well-funded, Start-up, Flutter & Native iOS/Android

RMA is a growing national provider of testing, inspection, and certification services that support innovation in new product development, quality assurance, for project delivery, and engineered solutions for asset management. We are passionate about contributing to the sustainable development of the communities we serve. We are a national firm with a global reach serving national and international clients from 30+ offices located in 10 states and are ranked on ENR's Top 500 list alongside the nation's top firms. With a 60-year history, RMA has a passion for high-end services, constant innovation, and investment in the development of world-class laboratory facilities, and interactive management technologies. Each member of our staff is committed to service, innovation, and the success of our clients. This position will be working out of the Sun Valley, CA office. POSITION OVERVIEW: RMA is seeking a full-time Office Manager/Sr. Engineer or a candidate with similar experience to manage and grow the office located in Sun Valley, California. The ideal candidate will have the demonstrated experience to further develop RMA's expertise in providing analyses, guidance, and solutions to contractors, municipalities, transportation agencies, utility providers, and healthcare clients in the areas of geological and environmental engineering, construction materials testing/inspection, and stormwater management services. Responsibilities include but are not limited to: Perform the Office Manager functions including overseeing Department and Project Managers, managing the revenue and cost for budgeted profitability, hiring and maintaining staff, AR & WIP management oversite, safety leader and required safety culture of the Office per the company requirements. Provide market analysis and clear strategic vision for the operation. Provide leadership, mentoring and direction to managers within the operation. Develop the office to provide the full complement of services that RMA Companies provides. Continuous evaluation of the group's strengths and weaknesses. Develop plans to overcome the weakness and promote the strengths of the organization. Actively work with other offices to develop synergies with common clients, work force, etc. Develop relationships with new potential Client's to maintain a steady backlog of work and increase the existing Client base. Develop and maintain existing and past clients for future work. Provide timely responses to all proposals that management determines are worthy of pursuing. Hiring and onboarding staff, supervisory responsibilities including conducting performance reviews. JOB QUALIFICATIONS: U.S. Citizenship or legal authorization to work in the U.S. Minimum of 15 years progressive experience with 5 or more years of proven experience managing business operations. B.S. Degree in Engineering in Civil or Environmental preferred but not required, or related management experience of technical staff. California PE preferred. Demonstrated history of growing a business with positive client satisfaction. Proven results in meeting internal or external client requirements for Scope, Schedule, Budget, and Quality. Knowledge and experience leading, developing, and managing multiple service lines. Excellent written and verbal communication skills and demonstrated ability to communicate across all levels of the company. Highly organized, self-motivated and results driven with the ability to organize priorities and multi-task effectively. Strong interpersonal skills. WORKING CONDITIONS Ability to perform in a high stress environment. The employee spends most of the time sitting or standing in a comfortable position with ample opportunity to move about. Must be able to lift 50 lbs. Ability to read or interpret data as well as having the capacity to communicate (verbally and written) with both company and outside personnel professionally and effectively. There is a strong emphasis on safety while working both in the office and in the field. We are an Equal Opportunity Employer. This Company is dedicated to both the letter and the spirit of the equal opportunity employment laws. All applicants and all employees will be evaluated on the basis of their ability, competence, and performance of the essential functions of their positions. There will be no discrimination on the basis of race, sex, national origin, religion, age 40 and over, disability, sexual orientation, marital status, or any other classification which may be protected by federal, state, or local laws. In compliance with the Americans with Disabilities Act, we specifically offer equal opportunity for all employees or job applicants who may have a physical or mental disability. Such persons will be hired on the basis of their ability to perform the essential functions of the job in question. Likewise, their work will be evaluated on their performance of these essential functions. We will offer reasonable accommodation to individuals with disabilities, to the extent that Company resources allow without undue hardship. As part of our equal employment policy, there will be no wage differentials based on gender, between men and women employed in the same establishment, on jobs that require equal skill, effort, and responsibility, and which are performed under similar working conditions.

📡 Job Title: Sr. Antenna & RF Engineering Lead 💼 Job Type: Full-time, On-site Seeking a technical leader in antenna and RF engineering to drive innovation in advanced GNSS and RF solutions. This role focuses on technical leadership, project guidance, and system-level integration, ensuring top-tier antenna performance and strategic product development. The primary function will be to maximize the value of current design resources while ensuring the delivery of high-quality, state-of-the-art antenna solutions. The ideal candidate is a self-starter, proactive, and organized, with a deep understanding of RF and antenna systems and a passion for leading teams. About the Company: A leader in RF technology, my client develops rugged, high-performance antennas for aerospace, defense, and other industries. They drive innovation while delivering tailored solutions to mission-critical applications. Key Responsibilities: Lead RF & antenna design, development, and system integration. Guide technical strategy, research, and innovation. Act as technical lead, reviewing designs, managing projects, and mentoring engineers. Oversee antenna architectures, including GNSS, beamforming arrays, and multi-band communication antennas. Ensure high-quality, state-of-the-art antenna solutions aligned with customer needs. Shape technology roadmaps in collaboration with leadership. Support cross-functional teams including product, sales, and operations. Required Qualifications: Bachelor's in Electrical Engineering or related field. 5-20 years in RF/antenna engineering. Experience in electrical, RF, and antenna engineering. Experience with RF/antenna system design, validation, and testing. Leadership experience or strong potential and interest in a leadership role. Understanding of RF & antenna design principles (GPS, GNSS, HFSS, Array, L-band, etc.). Exposure to system analysis, electronic warfare, and anti-jam applications. Self-starter, proactive, adaptable, open-minded, enthusiastic, passionate, and organized. *ITAR 🌟 If you're ready to lead cutting-edge RF & antenna innovation and shape the future of high-performance solutions, apply ASAP! 🌟 *ITAR: Must be U.S. persons within the meaning of ITAR. ITAR defines a US person as: any individual who is granted U.S. citizenship; or any individual who is granted U.S. permanent residence ("Green Card" holder); or any individual who is granted status as a "protected person" under 8 U.S.C 1324b(a)(3).

We are seeking a Project Engineer to support the LA Metro Bus Rapid Transit Project. The ideal candidate will have 1 to 5 years of experience in construction project engineering, with a focus on document control, submittal tracking, and contract administration. This role is essential in assisting the Construction Manager and ensuring that all project documentation and coordination efforts align with LACMTA requirements. Key Responsibilities: Document Control & Submittal Management: Review, track, process, and distribute submittals, RFIs, RFCs, design submittals, shop drawings, product data, and work plans. Ensure completeness and accuracy of construction documents and maintain organized project records. Receive, record, and compile review comments while maintaining a log of submittals and deliverables. Provide regular updates on the status of submittals and RFIs during project progress meetings. Project Coordination & Engineering Support: Maintain progress prints of all project drawings and specifications, including scope drawings, contract drawings, AFC drawings, shop drawings, and contract specifications. Assist in monitoring compliance with project schedule, budget, safety standards, and legal requirements. Develop and maintain spreadsheets, logs, and project tracking tools. Utilize Primavera Contract Management Software (PCM) or other project management tools for document tracking. Technical & Compliance Support: Assist in preparing work plans, technical reports, feasibility studies, and cost estimates. Analyze drawings, specifications, safety guidelines, and maintenance/training requirements. Review regulatory codes, rules, and regulations to ensure project compliance. Interpret contract specifications, building codes, and safety orders to assist project teams. Coordination with External Agencies & Field Support: Collaborate with LACMTA, contractors, and external agencies to ensure efficient project execution. Assist in coordinating Worksite Traffic Control Plans to maintain safe and effective construction operations. Maintain project files, correspondence, and reports, ensuring compliance with contractual and regulatory requirements. Qualifications: Bachelor's degree in Engineering, Construction Management, or a related field. 1 to 5 years of experience in construction engineering, document control, or project coordination within horizontal construction projects (transit, highways, or civil infrastructure). Experience performing Construction cost modeling & estimating highly desired Proficiency in Microsoft Excel, Primavera Contract Management (PCM), and database management. Strong understanding of contract administration, submittals, and project documentation processes. Excellent communication and organizational skills, with the ability to interface with construction managers, contractors, and stakeholders. Familiarity with LACMTA policies, procedures, and Metro construction project standards is a plus.

About the job Knightwerx is looking for an experienced Mid/Sr. Level Mechanical Engineer to join our growing R&D team. As a subject matter expert in mechanical design, the Mechanical Engineer will work within a multi-disciplinary team to develop low SWaP sensor technology as well as small unmanned electric aircraft tech from the ground up. We operate in a fast-paced development environment that balances innovation and ingenuity with practicality and reliability. You will be involved in every aspect of the engineering process from clean-sheet design and prototyping to outdoor testing, customer interaction, and manufacturing. Requirements Must have US citizenship On-site, collaborative work environment Work Experience · Bachelor's or higher degree in relevant engineering discipline · 5 or more years experience developing mechanisms and mechanical hardware · Experience with full product development lifecycle from concept development through production · Hands-on experience with low SWaP sensor tech, small unmanned systems, or model aircraft desired Attributes · Innovative, hands-on, and practical · Multi-disciplined, problem solver, driven by engineering analysis · Goal driven, learns from mistakes, and closes the loop on the design process · Communicates well through discussion and documentation · Works well with others to develop plans and solve problems Primary Duties and Tasks · Take ownership of significant portions of the sensor development process including mechanical design, analysis, fabrication, testing, and production · Participate in conceptual design and development of mechanical system architecture · Develop trade studies and risk reduction tests to validate designs · Work with external suppliers to quote and procure mechanical hardware · Fabricate mechanisms and test setups using standard prototyping methods · Work with management to develop realistic timelines and scope of work to achieve project goals Skills and Expertise · Demonstrated competence in mechanical design including development of lightweight metallic and composite mechanisms and structures, as well as sealing methods · Experience with complete mechanical engineering lifecycle from design through manufacturing · Demonstrated understanding of material properties and structural analysis · Ability to work within a fast-paced research and development environment · Proficiency with Solidworks and Microsoft office suite About Knightwerx Knightwerx is a start-up company that was born to be game-changing. From its inception, Knightwerx has focused on solving real-world, mission-critical problems for the military special operations community and civilian sectors. Our approach is to seek top experts for every position who are not only willing to make a lasting impact but to drive innovation and enhance the company's direction. As such, we are not business leaders who build drones or drone builders running a business. We are both.

Senior Payload Systems Engineer As a Senior Payload Systems Engineer, you will support programs involving payload system design, trade studies, integration, and testing. You will also be responsible for understanding and leading the decomposition and allocation of electro-optical payload requirements to lower-level specifications while facilitating collaboration with the spacecraft bus team. Qualifications: Required: Bachelor's degree in Aerospace Engineering, Electrical Engineering, Mechanical Engineering, or a related field. 6+ years of experience in systems engineering or a similar role, with experience in designing and integrating cutting-edge technologies into platform systems. Strong knowledge of payload system design, integration, and testing. Proficiency with engineering tools and software for simulation and analysis (e.g., Python, MATLAB, CAD, Zeemax, FreeFlyer). Excellent analytical and problem-solving skills, with the ability to address complex technical challenges and develop effective solutions. High level of accuracy and attention to detail in designing, testing, and documenting payload systems. Strong verbal and written communication skills to present technical information clearly and collaborate effectively with team members and stakeholders. Ability to obtain a security clearance (Secret and/or TS/SCI). Availability to work extended hours and weekends as needed to meet critical deadlines. Preferred: Master's degree in Aerospace Engineering, Electrical Engineering, Mechanical Engineering, or a related field. 10+ years of experience in payload systems engineering, particularly in aerospace or high-tech industries. Experience with electro-optical payload development, integration, and testing. Expertise in advanced payload system design and integration techniques. Experience with space mission payloads, including scientific instruments, sensors, and communication systems. Familiarity with the unique requirements and challenges of payload systems for space missions. Proven ability to drive innovation and improvements in payload systems design and integration processes.

As a Senior Engineer for Experimental Hemodynamics, you will be responsible for ensuring that development testing is executed on-time with precision and efficiency. Your responsibilities include managing hemodynamics test planning and scheduling, test article/fixtures build and test setup including instrumentation. You will support both transcatheter heart valve (THV) product development and research and development teams. What you'll be able to do: Support experimental hemodynamics / optical flow visualization test scheduling and execution to meet project timelines at clients Irvine advanced imaging and hemodynamics test facility. Support article/fixtures build including instrumentation. Support parts build across internal and external suppliers as directed by model design team. Author/Co-Author SOP, IQ, TMV Protocols and Reports, as well as DV Protocols and Reports Assist with assembly instrumentation including connection to data acquisition equipment. Ensure physical test setup and acquired data meets quality standards. Ensure safety as a number one priority for test article build, setup and test execution. The minimum requirements we seek: Graduate degree (Thesis based Masters or PhD) in Engineering or Applied Physics with focus on Experimental Fluid Mechanics Proven publication record in Experimental Fluid Mechanics (digital copies of the articles will be requested to evaluate competency) Hands-on skills relating to 2D2C Particle Image Velocimetry within LaVision DaVis environment, including data postprocessing/analysis externally using MATLAB. Hands-on skills relating to testing of flow instabilities in the closed fluid loop and physical assembly of components, including the use of various hand and power tools. Hands-on skills relating to CAD modelling using Solidworks. Technologically inclined and competent using windows-based programs. Excellent attention to details in both physical and computer environments Logical thinker with good judgement and decision-making abilities Ability to work with commitment and accuracy under pressure to successfully meet deadlines. Excellent verbal and written communication skills Ability to adapt to changing priorities. Self-starter and able to work independently and as part of a team. Our preferred requirements: 2+ years of experience with testing of flow instabilities in the closed fluid loop using particle image velocimetry technique, including test article build and test execution. 2+ year of experience of instrument setup and data acquisition on test article Passion for structural heart hemodynamics or related technologies Enjoy using your attention to detail to understand and solve technical problems. Relish collaborating across functions in a team environment, employing an open and honest communication style.

Step into the revolution. Arena Club is not just disrupting the collectibles market-we're igniting a seismic shift in the industry. Imagine being part of a company that will soon be a household name, one that visionary leaders like 5x World Series Champion Derek Jeter and trailblazing entrepreneur Brian Lee are propelling into the stratosphere. We're redefining sports cards and memorabilia with the first-ever digital card show, built on rock-solid trust, transparency, and an exhilarating passion for the game. This is your chance to join the team before we become the next Uber or Google of collectibles. Role Overview Join our fast-growing startup in West Los Angeles as a Senior Mobile Engineer and lead the evolution of our mobile application, now a year old and the most engaging part of our platform, featuring the best user experiences. This role offers a unique opportunity to shape and accelerate our mobile development, leveraging our standout features to drive scalability and innovation. We're seeking super smart engineers to join our dynamic team and supercharge our progress. This position is in-office, fostering a fun and collaborative environment, with flexibility for a hybrid arrangement to accommodate personal needs as life comes up. Key Responsibilities Lead the development of our first mobile application using React Native Collaborate with product and UX/UI designers to build a great experience for our customers Work closely with backend and web engineers to ensure a seamless user experience across platforms Design and implement robust app architectures and complex user interfaces Work closely with cross-functional teams to define, design, and ship new features Ensure the performance, quality, and responsiveness of the application Raise the engineering bar, set development standards, and identify and correct bottlenecks Help maintain code quality, organization, and automation Qualifications Experience leading mobile app development projects 7+ years of experience in mobile application development Experience with automated testing frameworks and continuous integration Familiarity with cloud messaging APIs, push notifications, and building eCommerce marketplaces Ability to move fast and iterate quickly in a startup environment while maintaining high code quality Excellent problem-solving skills and the ability to communicate technical trade-offs effectively Tech Stack Languages & Frameworks: JavaScript, TypeScript, React Native, Rx, IoC/DI Mobile Tools: Bazel, analytics tools, A/B testing frameworks Cloud & Infrastructure: AWS (S3, SQS, etc.) and/or GCP, Docker (optional, based on backend alignment) Location West LA office - primarily in-office 5 days a week to foster a collaborative environment, with flexible hybrid options available to accommodate personal needs

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We're designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts. Senior FPGA Engineer (This is a 100% onsite role. It can be based in Torrance, CA or Allen, TX) As a Senior FPGA Engineer you will be at the forefront of defining, implementing, and testing the code that drives our radar seekers. Embedded processors with both FPGA fabric and CPU cores form the backbone of many radar systems. You will be writing and testing FPGA and C/C++ code for both command/control and data processing. Your role involves close collaboration with fellow Castelion engineers across missile-level and seeker-level software and hardware domains. We seek intelligent, collaborative, and driven engineers who are passionate about problem-solving and eager to contribute to an extraordinary mission. If you thrive in challenging environments and are excited by the prospect of making a tangible impact, we want to hear from you. Responsibilities System Synthesis: From seeker requirements, derive and define the compute and code requirements. Lead the part selection trade study for major computer components. Develop innovative ways to solve problems with low-cost hardware that readily scales. Algorithm Implementation: Efficiently implement radar signal processing algorithms. Work with the team to balance sensor performance, compute resources, timeline, cost, thermal, power consumption, volume, etc. Your role includes algorithmimplementation process, from initial design, prototyping, and testing to final integration and deployment for mission-critical applications. Command/Control Implementation: Develop and approach and subsequent code to properly control the radar across all modes. This includes gathering/reporting telemetry, in-test diagnostics, and approaches for recording high speed data during test. Collaboration: Partner with multidisciplinary engineering teams to brainstorm, design, and develop next-generation hypersonic missile capabilities, including advanced guidance algorithms and integrated seeker image processing. Project Leadership: Lead major projects that propel Castelion's mission forward, ensuring alignment with overall objectives and occasionally traveling to launch and customer sites for testing and operations. Basic Qualifications Educational Background: Master's degree in computer science, computer engineering, electrical engineering, math, or a related STEM field. Technical Proficiency: 10+ years of professional radar engineering experience. Seeker experience is preferred. Preferred Skills and Experience System Experience: Practical experience with radar calibration, test and deployment. Prefer experience in missile domain. Technical Skills: Highly skilled FPGA coder, familiar with development tools of major FPGAs, familiar with radar signal processing and calibration techniques. Problem-Solving: Innovative problem-solving approach using first-principles thinking, including developing prototypes to validate key design concepts and quantify technical constraints. All employees are granted long-term stock incentives as part of their employment as Castelion. All employees receive access to comprehensive medial, vision, and dental insurance, and the company offers three weeks of paid time off per year. Leadership Qualities Bias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to personally resolve minor issues in development without requiring significant support. High Commitment, High Initiative. A successful candidate will have a genuine passion for Castelion's mission and consistently look for ways to contribute to the company's technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity. Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity. ITAR Requirements: To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.