Staff Mechanical Engineer - Power Systems

Archer Aviation is an innovative aerospace company located in San Jose, California, dedicated to creating an all-electric vertical takeoff and landing aircraft. Our mission is to accelerate the advantages of sustainable air mobility. We are designing, manufacturing, and operating a state-of-the-art all-electric aircraft capable of transporting four passenger…

Electric Hydrogen is dedicated to revolutionizing the energy landscape by producing green hydrogen through renewable electrolysis, aiming to decarbonize heavy industry at a cost lower than fossil fuels. Our exceptional team is our most valuable asset, driving our mission forward.We are seeking a highly skilled Senior Power Electronics Engineer to spearhead the development of innovative power electronics products. In this role, you will design and implement groundbreaking solutions that facilitate green hydrogen production, transitioning from prototype to large-scale production. This position requires onsite work at our San Jose, CA facility and involves reporting directly to the Director of Power and Electrical Engineering.

Electric Hydrogen is dedicated to revolutionizing the energy industry by producing green hydrogen to aid in global decarbonization. Our exceptional team is our greatest asset, enabling us to deliver hydrogen from renewable electrolysis for heavy industries at a cost lower than fossil fuels.We are seeking a Senior Staff Power Electronics Engineer to spearhead the development of innovative power electronics solutions. You will play a key role in creating new technologies that support the production of green hydrogen, transitioning projects from prototype to full-scale production.This position is based at our San Jose, CA office, where you will directly report to the Director of Power and Electrical Engineering.

Archer Aviation is an innovative aerospace company headquartered in San Jose, California, dedicated to revolutionizing air transportation through the development of an all-electric vertical takeoff and landing (eVTOL) aircraft. Our mission is to enhance sustainable air mobility while ensuring minimal noise and an eco-friendly approach to aviation.At Archer, we aim high and tackle challenging problems. We strongly believe that diversity fuels creativity and innovation, leading to better solutions and collective success. We are committed to fostering an equitable and inclusive workplace that honors all voices and perspectives.We are currently looking for a skilled Propulsion Controls Engineer to play a vital role in our mission of advancing sustainable urban air mobility. This position involves designing, developing, and validating control systems for electric propulsion technologies that drive our state-of-the-art eVTOL aircraft. The ideal candidate will have a robust background in embedded C programming, resonant converter control design, power electronics, and DC-DC converters. You will work alongside a multidisciplinary team to ensure the safety, efficiency, and unparalleled performance of propulsion systems that are set to redefine the future of transportation.

Archer Aviation is a pioneering aerospace company located in San Jose, California, focused on designing and building an innovative all-electric vertical takeoff and landing (eVTOL) aircraft. Our mission is to redefine sustainable air mobility, creating aircraft for four passengers that operate with minimal noise and environmental impact.At Archer, we embrace the challenges of the aerospace industry, fostering a workplace that celebrates diversity and inclusion. We believe that varied perspectives lead to smarter solutions and innovations that propel us toward our ambitious goals. Join us as we build an equitable and supportive environment for all team members.Key Responsibilities:Lead the mechanical design of high-power electrical assemblies, including DC-DC converters, chargers, and motor controllers from concept to completion.Work collaboratively with mechanical, systems, electrical, safety, and manufacturing engineers to enhance design performance across the vehicle.Tackle electric propulsion design challenges, such as thermal management, high-voltage electrical isolation, shock and vibration resistance, environmental sealing, and electromagnetic interference.Oversee the detailed design of components, including plastic housings, sheet metal brackets, insulation systems, high-voltage connectors, fasteners, and structural supports.Conduct thorough analysis to ensure designs meet requirements through heat transfer calculations, thermal analysis, assembly design, structural evaluations, and failure mode analysis.Develop comprehensive engineering test plans for design validation.Create precise assembly and component drawings, coordinating with suppliers for manufacturing.Lead prototype builds and validation testing to ensure design functionality and performance.

Archer Aviation, located in San Jose, California, is pioneering the development of an innovative all-electric vertical takeoff and landing (eVTOL) aircraft, dedicated to enhancing the future of sustainable air mobility. Our groundbreaking design focuses on creating a quieter, eco-friendly aircraft capable of transporting four passengers with minimal environmental impact.We aspire to achieve remarkable advancements and tackle complex challenges, believing that a diverse workplace fosters smarter solutions, deeper insights, and collective success. Our commitment to inclusivity and equity ensures that we celebrate and support all members of our team.Key Responsibilities:Design and develop high-density, fault-tolerant motor controllers, including drivers, sensors, power stages, and embedded control interfaces.Oversee all aspects of power electronics design, including components, circuits, modules, and system integration.Optimize passive component designs within power electronics systems.Conduct EMC and lightning design, analysis, and testing for both low and high voltage electronic systems.Lead new design projects from inception to production in collaboration with a multidisciplinary team.Take ownership of the entire hardware lifecycle—from specification through design, prototyping, reliability validation, and manufacturing.Conduct requirements capture, topology trade-studies, and performance modeling.Design, review, and assemble schematics and PCBs.Execute prototype verification tests to validate concepts.Analyze test data and reports to confirm functional and performance specifications.Troubleshoot and perform root cause analyses on both prototype and production designs.

Join Renesas Electronics as a Power Supply Field Application Engineer (FAE) and leverage your technical skills to provide innovative solutions for our clients. You will work closely with customers, assisting them in the design and implementation of cutting-edge power supply systems. This role is ideal for individuals who are passionate about power electronics and enjoy collaborating with cross-functional teams.

Join Etched as a Power Validation Engineer and become an integral part of a dynamic team dedicated to advancing cutting-edge technology. In this role, you will be responsible for ensuring the reliability and performance of power systems through rigorous validation processes. Your expertise will contribute to the development of innovative solutions that drive our mission forward.

Electric Hydrogen is dedicated to revolutionizing how we produce energy. Our mission is to create sustainable hydrogen solutions through renewable electrolysis, making it affordable for heavy industry and significantly reducing carbon emissions.We are in search of a Senior Staff Electrical Engineer specializing in Grid Power to spearhead the development of connection specifications between Electric Hydrogen’s power systems and the medium voltage utility grid. This role involves overseeing all facets of electrical installation design, which includes collaborating with third-party EPCs and conducting internal design tasks. You will perform in-depth power systems analysis using advanced modeling and simulation software to assess critical system characteristics such as load and power flows, short circuit analysis, transient stability, and stability under various operational conditions.This position is based onsite in San Jose, CA and reports directly to the Director of Power Platform.

We are seeking a talented Power Integrity Engineer to join our innovative team at Lumilens in San Jose, California. In this role, you will be responsible for ensuring the integrity of power systems within silicon components, contributing to the advancement of our cutting-edge technology.As a Power Integrity Engineer, you will work closely with cross-functional teams to analyze and optimize power distribution networks, develop simulations, and conduct testing to ensure product reliability. Your expertise will play a crucial role in delivering high-performance solutions that meet our clients' needs.

Role overview The Power Systems Design Engineer at Etched will design, analyze, and refine power systems to meet demanding performance and reliability standards. This position requires working closely with colleagues from multiple teams to create solutions that align with client requirements. What you will do Design and analyze power systems for both new initiatives and ongoing projects Apply engineering best practices to enhance system performance and reliability Collaborate with cross-functional teams to develop and implement tailored solutions Location This role is based in San Jose.

Join Lumilens as the Director of Silicon Test Engineering, where you'll lead a talented team in the development of cutting-edge silicon testing strategies. In this pivotal role, you will oversee the design, implementation, and optimization of test processes to ensure the highest quality standards are met. Your leadership will directly contribute to the advancement of our innovative technologies.

Archer Aviation is an innovative aerospace company headquartered in San Jose, California, dedicated to revolutionizing air travel through the development of an all-electric vertical takeoff and landing aircraft. Our mission is to promote sustainable air mobility by designing, manufacturing, and operating an aircraft capable of transporting four passengers with minimal noise emissions.We are committed to high aspirations and tackling complex challenges, and we believe that a diverse workplace fosters greater intelligence, better insights, and ultimately leads to our collective success. Archer is devoted to creating an equitable and inclusive environment that values differences and supports the celebration of all team members.The Propulsion Electronics Team at Archer is looking for a talented Staff Electronics Engineer to spearhead the architecture and design of critical controller boards for our electric engines and generators.

Archer Aviation, based in San Jose, California, is at the forefront of aerospace innovation, creating an all-electric vertical takeoff and landing (eVTOL) aircraft aimed at revolutionizing sustainable air mobility. Our aircraft, designed to transport four passengers, sets a new standard for quiet, eco-friendly flight.We aspire to tackle ambitious challenges and recognize that a diverse workforce fuels creativity, enhances problem-solving, and contributes to our collective success. Archer is committed to fostering an equitable and inclusive atmosphere that values all perspectives and celebrates our diverse team members.

Archer Aviation Inc., located in San Jose, California, is revolutionizing the aerospace industry with our all-electric vertical takeoff and landing aircraft. Our mission is to enhance sustainable air mobility by designing, manufacturing, and operating a state-of-the-art aircraft capable of carrying four passengers while ensuring minimal noise output.At Archer, we aspire to achieve remarkable heights, tackling challenging problems while fostering a diverse and inclusive workplace that drives innovation and collective success. We are committed to creating an equitable environment that values our differences and supports every team member.What You’ll DoExecute Worst Case Circuit Analysis (WCCA) and margin analysis on critical control and measurement circuits, including microcontrollers, resolver interfaces, PMICs, power trees, voltage/current sensors, and digital communication protocols (CAN, SPI, etc.).Conduct circuit simulations using SPICE and MATLAB to evaluate designs under varying component tolerances, temperature extremes, and voltage fluctuations.Lead Design Failure Mode and Effects Analysis (DFMEA) for control and sensor boards, collaborating with Safety and Reliability teams to identify and mitigate potential risks.Analyze the impact of single-event upsets and latch-ups on essential system functionalities.Perform electrical stress analysis and component derating assessments.Assist the design team with analytical validation of power management architectures, sensor interfaces, and MCU-based control circuits.Work closely with hardware, controls, firmware, safety, and reliability teams to ensure compliance with aerospace performance and certification standards.Generate technical documentation and analysis reports to support design reviews and adhere to DO-254/DO-160 compliance.

Join Lumilens as an Optical Test Engineer, where you will play a pivotal role in the development and testing of innovative optical technologies. You will be responsible for designing and conducting tests to ensure product performance meets industry standards. Your expertise in optical engineering will be essential in analyzing data and providing actionable insights to improve product quality.

Archer, an innovative aerospace company located in San Jose, California, is pioneering the development of an all-electric vertical takeoff and landing aircraft. Our mission is to enhance sustainable air mobility, designing and manufacturing aircraft capable of carrying four passengers with minimal noise pollution.We set ambitious goals and tackle complex challenges, believing that a diverse workplace fosters smarter solutions and deeper insights, driving our collective success. We are committed to creating an equitable and inclusive environment that values our differences and supports all team members.What You’ll DoLead and execute comprehensive abuse testing for cells, modules, and battery packs, focusing on Thermal Runaway, Short Circuit, Over-Temperature, Overcharge, and Overdischarge scenarios.Conduct thorough data analysis and compile detailed reports.Design and develop sub-scale and full-scale test rigs for Safety/Abuse tests, including PCBA/hardware and software integration.Create and deploy custom thermal abuse test equipment and controllers.Develop bespoke test equipment and automation software to facilitate cross-functional battery R&D testing.Utilize NX CAD software for the mechanical design of test rigs.Enhance test development using LabVIEW, Python, and other relevant tools.Assist in the assembly of small-scale buck and prototype builds.Provide support for troubleshooting and preventative maintenance of battery testing equipment and setups.Contribute to failure review processes.Work alongside the battery engineering team on cell, buck, and pack teardown procedures.Innovate and implement new test procedures, executing them effectively.Generate reports for submission to the FAA.

About LumilensAt Lumilens, we are pioneering the vital photonics infrastructure that powers the future of AI supercomputing. From chip-to-chip optical interconnects to scalable photonic engines, we are ushering in a new era of computing that is faster, cooler, and significantly more efficient.As a well-funded startup supported by Mayfield, we are led by industry veterans who have successfully built and scaled transformative technologies. At Lumilens, we are focused on developing high-speed photonics products specifically designed to enhance the future of AI infrastructure and high-performance computing.This is not just incremental innovation; it represents a ground-floor opportunity to fundamentally rethink the optical layer from the silicon level. You will collaborate with a team of world-class engineers tackling some of the most challenging problems in scaling optical systems. Every line of code, every design decision, and every breakthrough you contribute will help shape the infrastructure of tomorrow.If you are seeking a mission-driven environment, rapid momentum, and the opportunity to make a significant impact, join us on this exciting journey. We’re just getting started.About the Role – Optical Product Test EngineerIn your role as an Optical Product Test Engineer, you will be essential in validating and ensuring the quality of Lumilens’ photonic components, modules, and systems. This position merges hands-on production testing with the development of testing protocols and reporting, supporting both new product introductions (NPI) and volume manufacturing.You will closely collaborate with optical design, hardware, and manufacturing teams to perform calibration, characterization, and troubleshooting of next-generation photonics technologies that are set to drive the future of AI and high-performance computing infrastructure.Primary Duties & ResponsibilitiesCharacterize and test fiber optic components and modulesAnalyze test results to ensure adherence to performance specifications and quality standardsMaintain precise and detailed records of testing procedures and outcomesGenerate detailed test reports for both internal and external stakeholdersAssist in troubleshooting and root cause analysis to resolve product issuesDesign, plan, and conduct optical and fiber testing on components, devices, and systemsCollaborate with cross-functional engineering teams to support NPI and the ramp-up of manufacturing

About Hark Hark is at the forefront of artificial intelligence innovation, crafting sophisticated, personalized intelligence systems that are proactive, multimodal, and capable of engaging with the world through speech, text, vision, and persistent memory. We are merging this intelligence with cutting-edge hardware to establish a universal interface that bridges the gap between humans and machines. While traditional AI mainly relies on outdated devices and chat interfaces, Hark is pioneering the future with agentic systems that naturally interact with people and their environments. Our mission involves developing multimodal models and next-generation AI hardware concurrently, designed from the ground up as a cohesive interface for a revolutionary era of intelligent systems. About the Role We are seeking a Hardware Test Engineer who will be instrumental in creating the test infrastructure that guarantees our AI-powered devices adhere to quality, reliability, and performance benchmarks throughout the development process. You will manage the test strategy from initial board bring-up to mass production, encompassing fixture design, automation scripting, and establishing the criteria for product readiness. Your role will involve executing functional tests on the bench and conducting burn-in and stress tests at the factory, serving as the final quality assurance before our devices reach the end-users. Responsibilities Test Strategy: Define and take ownership of the comprehensive test plan across EVT, DVT, PVT, and production phases. Fixture Design: Create and develop custom test fixtures (bed-of-nails, pogo pin, cable harness) for both PCBA and system-level assessments. Test Automation: Write automated test scripts in Python to control instruments, gather data, and produce pass/fail reports. Board Bring-Up: Lead the electrical bring-up of new PCBAs, diagnosing issues with power rails, clocks, interfaces, and peripheral functionalities. Reliability Testing: Design and conduct environmental stress tests, including thermal cycling, vibration, drop tests, and accelerated life testing. Production Support: Collaborate with contract manufacturers to set up and maintain test stations on the factory floor, ensuring yield and throughput objectives are met. Failure Analysis: Conduct root cause analysis on field returns and test failures using advanced tools such as oscilloscopes, logic analyzers, and X-ray inspection. Requirements Education: A Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, or a related field. Test Automation: Proficiency in Python for instrument control (SCPI/VISA), data analysis, and test reporting. Lab Instrumentation: Advanced skills in using oscilloscopes, logic analyzers, and other lab equipment.