Engineering Technician - Battery Test

Stealth-mode Battery Startup•San Jose, CA

9d•Onsite

About The Position

We are a stealth-mode battery startup developing cutting-edge battery technology. Our mission is to revolutionize battery technology to accelerate the global transition to clean energy. By leveraging innovative materials and advanced manufacturing techniques, we are building the future of sustainable energy. Can't find the company name? It’s not you, it’s us! We’re really excited about the potential of our technology, product, and mission, and have chosen to remain in stealth mode. If the job description piques your interest, please apply. If your skillset is aligned with what we’re looking for, the team will reach out to schedule your interview and tell you a bit more about us (e.g. who we are). We are seeking a Engineering Technician - Battery Test to support the execution of lithium-ion battery testing across the cell, module, and high-voltage (HV) pack levels. This role is highly hands-on and focused on building, operating, maintaining, and troubleshooting battery test systems while working closely with test engineers and cross-functional engineering teams. This is a role for you if you enjoy working in a laboratory environment, have strong mechanical and electrical aptitude, and take pride in building reliable test setups and producing high-quality test data. Previous experience with lithium-ion battery testing is preferred, while high-voltage battery experience is a plus but not required.

Requirements

Associate's degree, technical certification, military technical experience, or equivalent hands-on experience in electrical, mechanical, automotive, or related fields.
Strong mechanical and electrical aptitude.
Experience using common laboratory tools and equipment (multimeters, oscilloscopes, power supplies, hand tools, crimpers, etc.).
Ability to read electrical schematics and mechanical drawings.
Strong attention to detail and commitment to safety.
Comfortable working in a hands-on laboratory environment.
Ability to lift up to 50 lb and work around laboratory equipment and battery systems.

Nice To Haves

Experience testing lithium-ion cells, modules, or battery packs.
Experience operating battery cyclers (Maccor, AVL, Neware, or similar).
High-voltage battery experience or HV safety training.
Familiarity with CAN communication and basic BMS operation.
Experience with thermal chambers, DAQ systems, or environmental testing.
Basic experience with MATLAB, Python, Excel, or similar tools for reviewing test data.
Experience in automotive, EV, aerospace, energy storage, or battery manufacturing environments.

Responsibilities

Build, install, and operate battery test setups under the guidance of test engineers.
Prepare and test lithium-ion cells, modules, and high-voltage battery packs.
Safely install and connect battery hardware, instrumentation, and support equipment.
Execute battery tests including: Performance characterization, Cycle life and aging, Rate capability, Power and resistance testing, Environmental and thermal testing, Validation and durability testing
Monitor active tests and respond appropriately to alarms, faults, or abnormal test behavior.
Maintain detailed test logs and document observations throughout testing.
Configure and operate battery cyclers (Maccor, AVL, Neware, or similar systems).
Assemble test fixtures, wiring harnesses, instrumentation, and support hardware.
Install thermocouples, voltage taps, current sensors, pressure sensors, and other instrumentation.
Operate environmental chambers and supporting laboratory equipment.
Perform routine calibration, maintenance, and troubleshooting of laboratory equipment.
Help maintain an organized, safe, and efficient battery laboratory.
Follow laboratory safety procedures for battery testing, including HV safety practices where applicable.
Verify proper test setup before energizing battery systems.
Perform pre-test inspections and equipment checks.
Support continuous improvement of laboratory safety procedures and best practices.
Verify accurate data acquisition from battery cyclers, DAQ systems, and instrumentation.
Organize and archive test data.
Assist engineers with basic data review and reporting.
Record hardware configurations, serial numbers, and test conditions.
Help develop and improve laboratory work instructions and test procedures.
Diagnose electrical, mechanical, and instrumentation issues with test setups.
Replace damaged cables, connectors, sensors, and fixtures as needed.
Assist engineers with failure investigations and root cause analysis.
Help improve test reliability, repeatability, and laboratory efficiency.
Work closely with battery test, systems, electrical, mechanical, manufacturing, and BMS engineering teams.
Support prototype builds and engineering development activities.
Assist with assembly, disassembly, inspection, and teardown of cells, modules, and battery packs before and after testing.