Engineering Technician - Battery Test

Stealth-mode Battery Startup; San Jose (CA); On-site; USD 65,000 - 95,000; Full time

Job summary

Stealth-mode Battery Startup is seeking an Engineering Technician - Battery Test to join our lab team. You will build, operate, and maintain battery test systems for lithium-ion cells, modules, and HV packs.

You will work closely with test engineers and other disciplines to generate reliable data and ensure safety. The role emphasizes hands-on testing, instrumentation setup, and contributing to ongoing improvements in lab processes and safety practices.

Qualifications

• Associate's degree or equivalent hands-on experience in electrical/mechanical work.
• Strong mechanical and electrical aptitude with hands-on lab skills.
• Ability to read electrical schematics and mechanical drawings.
• Experience using common laboratory equipment for testing and data collection.

Responsibilities

• Build, install, and operate battery test setups under guidance of senior engineers.
• Prepare cells, modules, and HV packs for testing and collect high-quality data.
• Safely connect battery hardware and instrumentation; monitor tests and logs.
• Maintain test records and document observations throughout testing.
• Support calibration, maintenance, and troubleshooting of lab equipment.
• Collaborate with cross-functional teams to ensure safe and efficient lab operation.

Skills

Mechanical aptitude

Electrical aptitude

Reading schematics

Test instrumentation

Education

Associate degree

Technical certification

Military technical experience

Tools

Multimeters

Oscilloscopes

Power supplies

Hand tools

Crimpers

Job description

About the Company

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 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).

Role

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.

Responsibilities

Battery Test Execution

• 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.

Test Equipment & Lab Support

• 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.

High Voltage & Lab Safety

• 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.

Data Collection & Documentation

• 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.

Troubleshooting

• 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.

Cross-Functional Support

• 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.

Qualifications

• 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.

Preferred Qualifications

• 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.

Physical Requirements

• Ability to sit, stand, and perform repetitive assembly tasks for extended periods.
• Ability to lift up to 50 pounds with or without reasonable accommodation.
• Ability to perform fine motor tasks requiring dexterity and precision.
• Ability to wear required PPE and work in dry room or controlled-environment conditions.

Why Join Us?

• Innovative Technology: Work on cutting-edge energy storage solutions that power the future.
• Career Growth: Opportunities to work on high-impact projects and advance in a growing industry.
• Competitive Benefits: Comprehensive health, wellness, and professional development programs.
• Mission-Driven Culture: Be part of a team that is shaping the future of sustainable energy through innovation and excellence.

We are an equal opportunity employer and we do not discriminate on the basis of race, gender, sexual orientation, gender identity/expression, national origin, disability, age, genetic information, veteran status, marital status, pregnancy or related condition, or any other basis protected by law.