Optical Test Engineer

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 bri…

Join our dynamic team as a Hardware Lab Technician in San Jose, where you will play a crucial role in supporting hardware development and testing processes. You will work closely with engineers and product teams to ensure that our hardware products meet the highest standards of quality and performance. Your responsibilities will include conducting tests, troubleshooting hardware issues, and documenting results.

Join our innovative team at Etched as an Electrical Engineer specializing in Hardware Systems. In this role, you'll be responsible for designing, developing, and testing cutting-edge hardware solutions that meet the evolving needs of our clients. You will collaborate with cross-functional teams to ensure the successful implementation of advanced technologies.Your expertise will contribute to the creation of high-quality electronic systems, ensuring they are reliable and efficient. We are looking for a proactive engineer who thrives in a fast-paced environment and is passionate about technology and innovation.

At Archer, we are pioneering the future of sustainable air mobility with our innovative all-electric vertical takeoff and landing aircraft, designed to transport four passengers quietly and efficiently. Headquartered in San Jose, California, we are on a mission to revolutionize urban transportation while minimizing our environmental footprint.We are committed to fostering a diverse and inclusive workplace that empowers every team member. Our belief is that varied perspectives ignite creativity, enhance insights, and drive our collective success. Join us as we work together to achieve remarkable things.What You'll Do:As a Staff BMS Hardware Verification Engineer, you will take the lead in the comprehensive verification and validation of Archer’s cutting-edge Battery Management System (BMS) electronics. Your role will ensure that our hardware, sensing, and control circuits fulfill the rigorous safety, reliability, and certification standards essential for eVTOL aircraft. You will create and implement hardware verification plans, design and automate test environments, conduct environmental and functional assessments, and compile certification evidence demonstrating compliance with FAA and industry standards such as DO-160G, DO-254, and ARP4754A. Your contributions will be vital to the certification and safe operation of our battery systems, which are integral to the next generation of urban air mobility.Lead the verification and validation (V&V) processes for the Battery Management System (BMS) electronics utilized in Archer’s high-voltage battery packs.Create detailed hardware verification plans, test procedures, and traceability matrices that align with system and certification requirements (DO-160G, DO-254, ARP4754A).Establish test methodologies for environmental, functional, and safety verification of BMS printed circuit board assemblies (PCBAs) and associated sensing electronics.Collaborate with systems, design, and certification engineering teams to extract verification requirements from system design documentation and certification plans.Design, construct, and automate hardware test setups, including instrumentation, data acquisition systems, power supplies, CAN interfaces, and fault-injection mechanisms.Execute and document test campaigns at the component, subsystem, and integrated aircraft levels to validate compliance with FAA airworthiness standards.Generate comprehensive test reports and assist with certification deliverables, including compliance matrices and traceability documentation.

Efficient Computer is pioneering the development of the world's most energy-efficient general-purpose computer processor. Our innovative, patented technology consumes 100 times less energy than the leading ultra-low-power processors available on the market. With the capability to be programmed using standard high-level programming languages and AI/ML frameworks, our groundbreaking efficiency allows IoT devices to operate AI/ML continuously on a single AA battery for 5-10 years. This exceptional performance empowers devices to intelligently gather and curate first-party data, driving a new computing revolution.We are currently looking for a CAD Hardware-Software Infrastructure Engineer to take ownership of and expand our hardware design and software build/CI infrastructure. This hybrid role merges CAD infrastructure management with DevOps responsibilities. You will ensure the smooth operation of software systems for our compiler and runtime teams while overseeing the hardware toolchain essential for ASIC development, including PDK installations, EDA licensing, and third-party IP integration.If you thrive on enhancing engineer productivity, enjoy diagnosing and solving intricate build issues, and are not deterred by the occasional 2 AM encounter with a vendor license server, then this opportunity is perfect for you. Join us in shaping the future of computing at the edge and beyond!

Astera Labs is looking for an Electrical Hardware Engineering Intern to join the Hardware Design Group in San Jose, CA for 2026. This internship offers practical experience in hardware design and development, working directly with a team focused on connectivity ASICs. Role overview This position centers on supporting the design and development of hardware products. Interns will work closely with experienced engineers, gaining exposure to the full hardware development process. What you will do Assist with hardware design activities for devices that use Astera Labs connectivity ASICs Help with the development and initial bring-up of significant hardware projects Work on key engineering tasks as part of a collaborative team Location This internship is based in San Jose, CA.

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 at the forefront of aerospace innovation, headquartered in San Jose, California. We are dedicated to revolutionizing air travel by developing an all-electric vertical takeoff and landing aircraft that prioritizes sustainable air mobility. Our aircraft is designed to accommodate four passengers while minimizing noise and environmental impact.We aspire to tackle challenging problems and believe that a diverse workforce fuels our creativity and success. Our commitment to fostering an inclusive and equitable workplace empowers all team members to thrive and contribute to our shared vision.As a Hardware Systems Engineer within our inverter design team, you will play a pivotal role in steering the systems engineering processes necessary for the certification of Airborne Electronic Hardware (AEH). Your collaboration with circuit designers will be crucial in establishing requirements, creating design templates and checklists, reviewing analyses, and ensuring that our hardware meets stringent certification standards.

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.

Archer Aviation is an innovative aerospace company headquartered in San Jose, California, dedicated to revolutionizing air travel with our all-electric vertical takeoff and landing aircraft. Our mission is to enhance the future of sustainable air mobility, providing a quiet and eco-friendly mode of transportation for up to four passengers.At Archer, we are committed to tackling significant challenges with high aspirations. We recognize that a diverse workforce fosters smarter solutions and deeper insights, ultimately guiding us to success. We strive to create an equitable and inclusive workplace that honors our differences and supports every team member.Key Responsibilities:As the BMS Hardware Manager, you will spearhead the development of Archer's high voltage battery management system (BMS) and charge control unit (CCU).Your specific duties will include:Building and mentoring a team of electrical engineers focused on BMS and CCU hardware development.Driving architectural decisions and evaluating new hardware concepts to enhance maturity.Making pivotal technical choices while balancing performance, safety, timelines, and certification requirements.Leading engineering design reviews and overseeing flight hardware releases.Guiding cross-functional teams in hardware analysis projects such as WCCA, FMEA, and PSSA to ensure safe flight and certification.Managing technical interactions with suppliers, partners, and regulatory authorities.Supporting Manufacturing, Quality, and Supply Chain teams during new product introduction (NPI) and production ramp-up.Collaborating with program teams to deliver high-quality hardware within established timelines.Coordinating with integration and testing teams during the deployment of hardware across integrated test labs and aircraft.

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

Astera Labs develops rack-scale AI infrastructure, focusing on advanced connectivity for modern data centers. The company partners with hyperscalers and technology leaders to help organizations get the most from their AI systems. Its Intelligent Connectivity Platform integrates technologies such as CXL®, Ethernet, NVLink, PCIe®, and UALink™ semiconductors, all managed through the COSMOS software suite. This setup supports both scale-up and scale-out architectures, streamlining the design of flexible, cohesive systems. Astera Labs provides both standards-based and custom connectivity solutions, enabling clients to build architectures that fit their specific infrastructure requirements. More information is available at www.asteralabs.com.

Join our innovative team at Collabera as a Software Test Engineer. In this pivotal role, you will be essential in ensuring the quality and performance of our software products. You will collaborate with developers and product managers to identify bugs, suggest improvements, and contribute to the overall user experience.

Archer Aviation is a pioneering aerospace firm headquartered in San Jose, California, dedicated to developing an all-electric vertical takeoff and landing (eVTOL) aircraft. Our mission is to enhance sustainable air mobility, designing and manufacturing an aircraft that can transport four passengers with minimal noise and environmental impact.We aim high and tackle challenging problems, believing that a diverse workforce fosters innovation, insights, and collective success. Our commitment is to create an equitable and inclusive workplace that values our unique perspectives and supports every member of our team.Key Responsibilities:Conduct electrical and environmental testing of prototype and certified batteries for eVTOL aircraft.Collaborate with cross-functional teams to create and implement test plans for flight-critical hardware.Execute acceptance testing on battery modules, packs, and charge port assemblies.Design sub-scale test rigs for mechanical and environmental testing, involving PCBA/hardware and software development.Develop and deploy custom test equipment and controllers.Create bespoke test equipment and automation software to facilitate cross-functional battery R&D testing.Perform mechanical design of test rigs using NX CAD software.Utilize LabVIEW, Python, and other test development tools for testing purposes.Analyze test data and collaborate with engineering teams to share insights.Develop automated test equipment as required.Innovate test procedures and oversee testing execution.Generate reports for FAA submission.

Archer Aviation is an innovative aerospace company headquartered in San Jose, California, dedicated to revolutionizing air travel with our all-electric vertical takeoff and landing aircraft. Our mission is to enhance sustainable air mobility, enabling efficient travel while minimizing environmental impact and noise levels.At Archer, we aim high, tackling complex challenges with a belief that a diverse workforce fosters smarter solutions and drives insights that lead to collective success. We are committed to creating an inclusive and equitable workplace that values every team member's uniqueness.What You’ll Do:Assist in the development and preparation of FAA Certification Ground and Flight test plans.Contribute to the creation of test cards.Collaborate with engineers, maintainers, technicians, and program management to ensure safe and efficient test operations.Support the generation of Company and Certification reports.Prepare material for test readiness reviews.Serve as a flight test engineer and/or test conductor during test events both on the aircraft and in the control room.Engage in flight briefs and debriefs for test events.Take part in test setup activities on the flight line.Report and communicate test results to the Flight Test and Engineering teams.Participate in all aspects of the Flight Test Safety Risk Management process.Prepare test operating limitations and advisories in collaboration with relevant engineering disciplines.Attend safety review board (SRB) meetings.

About Archer Aviation Archer Aviation, based in San Jose, California, is developing an all-electric vertical takeoff and landing (eVTOL) aircraft designed for sustainable air mobility. The company aims to create a quiet, environmentally conscious aircraft that seats four passengers. Archer values ambitious goals, technical challenges, and a workplace that welcomes diverse perspectives and backgrounds. Role Overview: Battery Test Engineer - Electrical The Battery Test Engineer - Electrical will focus on the testing and validation of battery and battery management system (BMS) components for Archer's eVTOL aircraft. This role involves hands-on work with prototype and certified hardware, as well as collaboration with multiple engineering teams. Main Responsibilities Conduct systems and integration testing for prototype and certified battery and BMS components. Work with teams across BMS, Controls, Engines, Flight, Integration, and Systems to develop and execute testing plans for flight hardware. Assist with regression testing activities. Support testing related to electromagnetic compatibility (EMC), short circuit, and electrical design infrastructure. Develop and test mission profiles for battery systems. Help build digital testing infrastructure for data storage and analysis. Analyze test data and collaborate with engineering teams to drive improvements. Design and implement automated test equipment as needed. Support electrical infrastructure design for Production and Reliability labs. Prepare technical reports for FAA regulatory submissions.

About EtchedEtched is revolutionizing the AI landscape with the world’s first AI inference system specifically designed for transformers. Our technology offers more than 10x improvement in performance while significantly reducing costs and latency compared to traditional systems. With our cutting-edge ASICs, we enable innovations that are unfeasible with GPUs, such as real-time video generation models and advanced reasoning agents. Supported by substantial investments from leading venture capitalists and staffed with top-tier engineers, we are reshaping the core infrastructure of the fastest-growing industry in history.Job SummaryJoin our Manufacturing Test Engineering team as a Failure Analysis Test Engineer, where you will take charge of electrical debugging and failure analysis for our AI systems. You will play a crucial role in ensuring smooth product introductions from New Product Introduction (NPI) through to high-volume production. Your collaboration with hardware, ASIC, diagnostics, test, and reliability engineering teams will be vital in enhancing diagnosability, manufacturing predictability, yield processes, material improvements, and overall product reliability.Your primary focus will be on enhancing the diagnosability and repair efficiency of PCBA and L10 Servers, striving to uphold the highest quality and reliability standards for our AI hardware.Key ResponsibilitiesDiagnose and repair electronic assemblies (PCBA) down to the component level.Work collaboratively with Contract Manufacturers (CMs) and ODMs to address capability gaps, enhance yield, and qualify new components.Set up and operate various test equipment including oscilloscopes, spectrum analyzers, network analyzers, and digital multimeters (DMMs).Maintain detailed records of failure data, repair actions, and updates to debug procedures.Collaborate with design and production teams to troubleshoot recurring issues and enhance product yield.Partner with Component Engineering, Supply Chain, and Hardware teams to guide component selection and minimize manufacturing risks early in the design phase.Conduct board bring-up and debugging, utilizing Design of Experiments (DOE) and hands-on lab work.Review and contribute to Process FMEA and Design FMEA, providing valuable diagnostics input.

Join Etched as a Design For Test (DFT) Engineer, where you will play a crucial role in enhancing product reliability and testability. You will collaborate with cross-functional teams to develop innovative testing strategies and ensure the highest quality standards are met throughout the design lifecycle.

Archer Aviation Inc. is a pioneering aerospace company located in San Jose, California, dedicated to developing an innovative all-electric vertical takeoff and landing (eVTOL) aircraft. Our mission is to revolutionize sustainable air mobility, engineering aircraft capable of transporting four passengers while maintaining an eco-friendly, low-noise operation.At Archer, we set ambitious goals and tackle complex challenges, believing that a diverse workforce enhances creativity, drives superior insights, and ultimately leads us to success. We are committed to fostering an inclusive workplace that values and celebrates our differences, ensuring all team members feel supported.About the Role:In this role, you will lead the enhancement of our High Voltage Electric Propulsion System production, which is integral to our eVTOL aircraft. This position involves overseeing one of the most technically advanced and automated manufacturing systems within our facility.Your Responsibilities:Direct the development of End-of-Line (EOL) and in-process testing protocols for High Voltage batteries and electric motors, focusing on performance, safety, and system integration.Architect and implement manufacturing test strategies, including hipot, insulation resistance, winding verification, electromagnetic performance, and Energy Storage Systems (ESS).Specify, validate, and commission production test equipment, ensuring successful installation, Factory Acceptance Testing (FAT), and production readiness.Program, maintain, and optimize Automated Test Equipment (ATE), including test sequences, pass/fail logic, and data collection systems.