Senior Thermal Engineer - Liquid Cooling Systems

About Archer Archer, based in San Jose, California, designs and builds all-electric vertical takeoff and landing aircraft. The company focuses on sustainable air mobility and aims to transport four passengers while reducing noise pollution. Archer values diversity and strives to create an inclusive workplace where every team member’s perspective contributes …

Archer Aviation develops all-electric vertical takeoff and landing (eVTOL) aircraft in San Jose, California. The company designs and builds vehicles that carry up to four passengers, with a focus on quiet operation and reduced environmental impact. High standards and a willingness to tackle complex challenges shape Archer’s approach. The team values diversity and inclusion, recognizing that a range of backgrounds and perspectives strengthens creativity and results. Every team member’s contribution is welcomed and respected.

Archer Aviation is an innovative aerospace firm located in San Jose, California, focused on developing an all-electric vertical takeoff and landing (eVTOL) aircraft. Our mission is to enhance sustainable air mobility, creating an aircraft that comfortably accommodates four passengers while minimizing noise.At Archer, we aim high and tackle challenging problems. We believe that a diverse workforce fosters smarter solutions, drives better insights, and ultimately leads us all to success. We are committed to creating an equitable and inclusive workplace that celebrates our differences and supports every team member.

At Archer, we are pioneering the future of aviation with our all-electric vertical takeoff and landing aircraft, designed to enhance sustainable air mobility. Our innovative engineering team is dedicated to creating an aircraft that accommodates four passengers with minimal noise pollution.We believe that tackling complex challenges requires a diverse team, and we are committed to fostering an inclusive workplace that values and celebrates our unique perspectives. Join us in our mission to revolutionize air travel.Key Responsibilities:As an Electrical Analysis Engineer, you will play a critical role in the analysis of circuits within Archer's high voltage battery management system. Your contributions will directly impact the safety and reliability of our innovative aircraft.Conduct thorough circuit schematic analyses, collaborating with safety engineers to identify potential single-point failures.Evaluate the system-level implications of individual component failures within printed circuit board assemblies (PCBAs).Aggregate power consumption data of the BMS PCBAs across various operational modes and correlate findings with laboratory tests.Perform worst-case accuracy analyses on measurement circuits.Utilize circuit simulation tools to model and analyze hardware circuits to support accuracy evaluations.Employ software for automated circuit analysis to facilitate schematic-level Failure Modes and Effects Analyses (FMEAs).Assess the system-level impacts of single-event upsets and latch-ups.Collaborate with reliability engineers to understand electrical operating conditions and determine failure rates.Carry out electrical stress analyses and component derating evaluations for individual components.Work closely with design engineers to ensure BMS hardware meets Archer's stringent safety, accuracy, and reliability standards.

At Antora, we are revolutionizing industrial energy solutions by developing advanced thermal batteries designed to deliver continuous, low-cost energy for industrial operations. Proudly manufactured in the U.S., our modular thermal batteries provide dependable heat and power, empowering industrial facilities of any size to achieve predictable and profitable decarbonization. We are on a mission to electrify global industry while supporting American manufacturing, reducing energy costs for consumers, and enhancing the competitiveness of U.S. industry.We are expanding our team with individuals who prioritize collaboration and purpose, cherish connection through laughter and joy, and approach their work with humility and openness. Our commitment to fostering a diverse, passionate, and innovative team is unwavering as we strive for a future where every industrial facility worldwide is powered by abundant, clean, low-cost energy.Position SummaryWe are on the lookout for a Senior / Staff Systems Engineer in San Jose—an enthusiastic, inquisitive, and dedicated engineer to join our Technology Development team. Your expertise will contribute to delivering zero-carbon industrial heat and power through our innovative solid-state thermal battery solutions.This role is deeply collaborative and central to system innovation. You will engage across various disciplines to influence the architecture and operational philosophy of Antora’s future offerings. Leveraging first-principles modeling, data analytics, and real-world performance insights, you will accelerate our mission to decarbonize the industrial sector at scale.

About Archer Aviation Archer Aviation, based in San Jose, California, develops all-electric vertical takeoff and landing (eVTOL) aircraft. The company focuses on sustainable air mobility, designing aircraft that can carry four passengers while minimizing noise. Archer values creative problem-solving and believes that a diverse, inclusive workplace leads to stronger results and a more supportive team environment. Role Overview The Thermal Systems Design Engineer for Hybrid Powertrain will lead the design and development of advanced thermal systems for Archer’s hybrid aircraft. This role involves hands-on engineering, collaboration across disciplines, and responsibility for the system’s full lifecycle, from concept to implementation. Key Responsibilities Design, model, and implement innovative thermal systems for hybrid aircraft. Select technologies and materials suited for complex thermal management challenges. Ensure thermal systems are lightweight, efficient, and cost-effective. Validate performance through rigorous testing and system definition. Work closely with stakeholders to deliver a comprehensive thermal solution. Oversee the thermal system’s lifecycle, coordinating with manufacturing and testing teams. Present design concepts and project updates to stakeholders. Collaborate with supply chain, quality assurance, manufacturing, and stress/FEA engineers.

Archer Aviation, based in San Jose, California, develops all-electric vertical takeoff and landing aircraft. The company focuses on advancing sustainable air mobility, designing vehicles that carry four passengers and operate with low noise. Archer values a diverse team and aims to create an inclusive workplace where different perspectives drive better solutions. The company encourages collaboration and respects the unique contributions of every employee. Role Overview The Senior Battery Design Engineer will lead efforts to design high voltage battery pack components for multiple aircraft programs, including both commercial and defense projects. This role covers the full design process, from initial concept through completion. What You Will Do Lead design of high voltage battery pack components across various aircraft programs, from concept to final product. Collaborate with CAE engineers, quality assurance, testing, supply chain, and manufacturing teams to ensure strong design and product quality. Provide hands-on support for prototyping, assembly, and troubleshooting throughout the design cycle. Work with integration and certification teams to meet all FAA certification requirements. Develop innovative battery designs tailored to the demands of aerospace applications.

About Hark Hark is at the forefront of artificial intelligence, dedicated to developing sophisticated, personalized AI systems. Our goal is to create an AI that is proactive, multimodal, and capable of engaging with the world through various modalities such as speech, text, vision, and long-term memory. We are combining this intelligence with state-of-the-art hardware to establish a universal interface between humans and machines. Unlike current AI, which primarily operates through outdated chat interfaces, Hark is pioneering the next generation of agentic systems that interact seamlessly with people and their environments. To achieve this vision, we are creating multimodal models and cutting-edge AI hardware, designed from the ground up to serve as a cohesive interface for a new era of intelligent systems. About the Role As a Senior Product Design Engineer specializing in thermal systems, you will be responsible for shaping the thermal architecture of our AI-driven consumer devices, guiding projects from initial concept through to detailed architecture and production validation. You will balance critical factors such as performance, battery life, cost, and user comfort while engaging in hands-on simulation, prototyping, and testing to facilitate informed decisions regarding architecture. Your collaboration with industrial design, mechanical, electrical, and software teams will be essential in developing comprehensive thermal solutions.

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 is a pioneering aerospace company located in San Jose, California, dedicated to developing an innovative all-electric vertical takeoff and landing aircraft. Our mission is to promote sustainable air mobility, designing, manufacturing, and operating an aircraft that accommodates four passengers while minimizing noise pollution.We aim high and tackle complex challenges, believing that a diverse workforce enriches our insights and propels us towards collective success. Archer is committed to fostering an equitable and inclusive environment that values differences and celebrates each team member.What You’ll Do:As a Battery Controls Integration Engineer at Archer, your primary responsibilities will include the integration of our high-voltage battery controls system onto test platforms, ensuring the verification of Battery Management System (BMS) safety-critical functions. This role is essential for facilitating the use of electric vertical-takeoff-and-landing aircraft in urban air mobility settings. Your contributions will encompass all stages of the product development lifecycle, including development, implementation, validation, and ongoing improvement.Core Responsibilities and Development Focus:Verification and Testing Strategy: Design and implement verification procedures and test plans across various testing environments including Simulation, Software-in-the-Loop (SIL), and Hardware-in-the-Loop (HIL).Integrated Testing Ownership: Lead the testing of the Battery Management System (BMS) controls hardware/software integrated system functionalities on safety-critical components, utilizing HIL, SIL, and high-voltage (HV) integrated labs.Automation and Infrastructure: Update and maintain automated test cases in alignment with BMS functionality development for effective verification and regression testing, particularly in model-based environments.Test System Development: Offer commissioning and maintenance support for the comprehensive testing infrastructure required for HIL testing of BMS controls, algorithms, and software.Process and Infrastructure Improvement: Take responsibility for the automated testing platform, enhancing efficiency, accuracy, and automation level for BMS control system verification. Contribute to continuous improvement of test infrastructure, including writing and debugging test scripts for HV HIL systems.Cross-Functional Collaboration and Integration:...

Archer Aviation, an innovative aerospace firm headquartered in San Jose, California, is on a mission to revolutionize air travel with our all-electric vertical takeoff and landing aircraft. Our commitment to sustainable air mobility drives us to design, manufacture, and operate an aircraft capable of carrying four passengers while minimizing noise pollution.We are passionate about addressing complex challenges and believe that a diverse workforce enhances our problem-solving capabilities, leading to superior insights and success. We strive to foster an equitable and inclusive workplace that celebrates the unique contributions of every team member.Key Responsibilities:Conduct verification and validation of safety-critical software components for the aircraft battery management system (BMS) in alignment with DO-178C standards.Develop and document detailed test plans, cases, and procedures based on software requirements.Perform Software-in-the-Loop (SIL) and Hardware-in-the-Loop (HIL) testing to validate battery algorithms and drivers.Identify, document, and manage software defects using automated tracking systems; collaborate with development teams to analyze root causes and validate resolutions.Create and uphold automated test scripts and frameworks (C/C++, Python) to optimize testing efficiency and coverage.Design and implement tests for verifying software fault detection and diagnostic algorithms, including insulation breakdown, short circuits, and sensor failures.Analyze sensor data (cell voltages, pack current) and test outcomes to ensure accurate state estimation and protective function performance.Engage in software audits and reviews to ensure compliance with DO-178C certification requirements.

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 Archer, a pioneering aerospace company headquartered in San Jose, California, where we are dedicated to revolutionizing sustainable air mobility through the development of all-electric vertical takeoff and landing (eVTOL) aircraft. Our innovative designs prioritize minimal noise and environmental impact while enabling efficient transportation for up to four passengers.At Archer, we are committed to tackling complex challenges and fostering a diverse workplace, believing that inclusivity drives greater insights and collective success. We strive to create an equitable environment that values and celebrates the unique contributions of all our team members.Your Role:As a Battery Controls Engineer, you will be instrumental in defining, validating, implementing, and verifying advanced high-voltage battery charging and thermal management algorithms tailored for our Midnight eVTOL aircraft. You will oversee the entire product development life cycle, from initial concept to final certification.Design and enhance cutting-edge control algorithms for high-voltage battery charging and thermal management.Conduct comprehensive validation of control software through SIL (Software-in-the-Loop), MIL (Model-in-the-Loop), HIL (Hardware-in-the-Loop), and aircraft-level integration testing to ensure optimal system reliability under all operating and environmental conditions.Analyze lab, flight, and field data to troubleshoot complex issues, refine algorithms, and enhance charging performance continuously.Collaborate closely with hardware, software, and systems engineering teams to establish requirements for charge control subsystems.

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.

Antora is on a mission to revolutionize industrial energy solutions by designing and implementing cutting-edge thermal batteries that provide reliable, low-cost energy for industrial operations. We are looking for a dynamic and driven Senior Mechanical/Process Engineer to join our San Jose, California team. In this pivotal role, you will be instrumental in optimizing our balance of plant (BOP) systems, focusing on cost efficiency and performance enhancements. Your expertise will be integral in developing and refining cost models based on comprehensive technical and commercial data, guiding the design and evolution of high-performance plant processes and systems. You will also take charge of scoping, defining, and designing BOP systems for our commercial thermal energy storage projects. As a key player in our rapidly growing cross-functional organization, your contributions will directly support the deployment and scaling of innovative long-duration energy storage technologies.

Archer Aviation is developing all-electric vertical takeoff and landing (eVTOL) aircraft in San Jose, California. The company’s mission centers on creating sustainable air mobility solutions, with aircraft designed to carry four passengers while minimizing noise for quieter, cleaner transportation. Archer values diversity and inclusion, encouraging every team member’s perspective and fostering equity throughout the workplace. Role overview The Senior Staff Engineer - Battery Cell Stack will lead the design and development of high-voltage battery pack components for both commercial and defense eVTOL aircraft. This position plays a key role in shaping battery technology for multiple aircraft programs. What you will do Oversee the full design process for high-voltage battery pack components across several aircraft platforms. Collaborate with CAE engineers, quality assurance, testing, supply chain, and manufacturing teams to align on project goals. Engage in hands-on prototyping, assembly, and root cause analysis during the design cycle. Work with integration and certification teams to ensure battery systems meet FAA certification standards. Create and refine battery design solutions that fulfill strict aerospace requirements. Establish and promote design standards and best practices for Archer’s battery systems. Mentor junior engineers working on battery design. Develop and maintain the battery hardware technology roadmap for future products and applications.

About Archer Aviation Archer Aviation, based in San Jose, California, is developing all-electric vertical takeoff and landing aircraft designed to transport four passengers with low noise and minimal environmental impact. The company is committed to advancing sustainable air mobility and values a diverse, equitable, and inclusive workplace where every team member can grow professionally. Role Overview The Battery Test and Build Technician will support the design, assembly, and testing of battery systems and related components. This hands-on role involves building prototypes, supporting equipment assembly, and assisting with battery charging operations for ongoing projects. What You Will Do Build battery packs, cell bucks, and components for Battery BMS, including design and testing tasks. Assist with assembling Battery EOL (End of Line) equipment. Support mechanical builds for advanced project testing. Fabricate securing hardware and harnesses for use with testing equipment and assets. Construct test fixtures for cells, bucks, and packs. Perform small-scale buck and prototype builds. Assist with battery pack charging operations. Location San Jose, California, United States

Become a Part of the Trackonomy Team! At Trackonomy, we prioritize your personal and professional growth through diverse responsibilities and a commitment to innovative practices. Join our team and advance your career in an environment that transforms both industries and individual lives. Connection & Community: Every member of Trackonomy is integral to our mission, with each individual valued as a co-founder. Our collective ambition is to create a lasting impact on the world, making every initiative at Trackonomy a significant journey. Growth & Development: Engage in a variety of roles and learn from our experienced leaders. Your drive and enthusiasm will shape your career path here. We cherish innovation and provide unmatched opportunities, ensuring your career is a transformative experience. At Trackonomy, your growth is multidimensional, allowing you to collaborate with and learn directly from senior leaders across different departments. Here, your potential—driven by skill, passion, and performance—will dictate the extent of your role. We believe in meritocracy, providing unique opportunities not commonly found elsewhere. Impact: Trackonomy is committed to delivering impactful technological solutions that enhance our world. From fire prevention to improved security, our innovations not only transform industries but also save lives. Join us and be part of meaningful change.