Battery Hardware Technician

Doordashusa; San Francisco (CA); On-site; USD 70,000 - 90,000; Full time

Job summary

Doordashusa is seeking a Battery Hardware Technician in San Francisco to support the development and validation of next-generation battery systems. This role involves building prototype battery packs, executing critical testing, and managing day-to-day operations of the battery lab.

The ideal candidate should have 2-3 years of hands-on experience with lithium-ion batteries, precision welding skills, and a strong safety compliance mindset. This position requires working onsite in a fast-paced R&D environment.

Qualifications

• 2-3 years of hands-on experience with lithium-ion battery cells.
• Experience with precision resistance welding, spot welding, and soldering.
• Strong reading proficiency in electrical schematics and wiring diagrams.

Responsibilities

• Assemble and modify prototype battery packs and modules.
• Perform precision spot welding, resistance welding, and soldering.
• Support validation tests including insulation and continuity checks.

Skills

Battery assembly expertise

Precision welding

Electrical schematics literacy

Safety compliance

Tools

Digital multimeter

Insulation tester

Job description

About the Role

DoorDash Labs is seeking a skilled and safety-conscious Battery Hardware Technician to join our hardware engineering team. In this role, you will be the hands‑on expert responsible for supporting the development, prototyping, and validation of our next‑generation battery systems. You will bridge the gap between design and reality by building prototype battery packs, executing critical testing procedures, and managing day‑to‑day operations of our battery lab.

If you thrive in a fast‑paced R&D environment and love working directly with cutting‑edge energy storage systems, we want you on our team.

This is a fully onsite, in‑person role based in San Francisco.

Key Responsibilities

• Prototype Battery Builds: Assemble, rework, and modify prototype battery packs and modules from the ground up, working directly with battery cells, modules, connector assemblies and printed circuit boards (PCBs).
• Precision Joining & Assembly: Perform precision spot welding, resistance welding, and soldering to interconnect cells and integrate Low‑Voltage (LV) and High‑Voltage (HV) wiring harnesses and connectors.
• Quality & Safety Testing: Support critical validation tests, including pressure/vacuum leak testing for sealed enclosures, insulation testing, and continuity checks.
• Lab Management & Safety: Own the maintenance, and safety compliance of the battery build and test laboratory. Ensure all equipment is calibrated, standard operating procedures (SOPs) are followed, and safety protocols for hazardous materials/high‑voltage are strictly enforced.
• Test Execution & Data Logging: Set up, monitor, and manage battery test equipment (cyclers, environmental chambers, data loggers) and document build processes and test anomalies clearly for the engineering team.

Required Qualifications & Experience

• Battery Expertise: Minimum of 2–3 years of hands‑on experience working directly with battery cells (lithium‑ion preferred) and assembling battery packs.
• Welding & Joining: Proven experience with precision resistance welding, spot welding, and high‑quality soldering techniques for electronics and busbars.
• Electrical & Mechanical Literacy: Strong proficiency in reading electrical schematics, mechanical drawings, and wiring diagrams. Experience routing and crimping HV/LV connectors and harnesses.
• Inspection Tools: Experience using leak testing equipment, digital multimeters, insulation testers (Hi‑Pot), and standard hand/power tools.
• Safety First Mindset: Deep understanding of the safety hazards associated with lithium‑ion cells and high‑voltage systems, with a track record of maintaining a clean, orderly, and safe workspace.

Nice‑to‑Haves

• Experience with battery management systems (BMS) and basic PCB troubleshooting/rework of components.
• Familiarity with battery cyclers (e.g. Chroma) and environmental chambers.
• Prior experience in basic CAD (fixtures, etc.), rapid prototyping or R&D environment (robotics, automotive, or aerospace).

Our Commitment to Diversity and Inclusion

We’re committed to growing and empowering a more inclusive community within our company, industry, and cities. That’s why we hire and cultivate diverse teams of people from all backgrounds, experiences, and perspectives. We believe that true innovation happens when everyone has room at the table and the tools, resources, and opportunity to excel.

If you need any accommodations, please inform your recruiting contact upon initial connection.

Statement of Non‑Discrimination: In keeping with our beliefs and goals, no employee or applicant will face discrimination or harassment based on: race, color, ancestry, national origin, religion, age, gender, marital/domestic partner status, sexual orientation, gender identity or expression, disability status or veteran status. Above and beyond discrimination and harassment based on “protected categories,” we also strive to prevent other subtler forms of inappropriate behavior (i.e., stereotyping) from ever gaining a foothold in our office. Whether blatant or hidden, barriers to success have no place at DoorDash. We value a diverse workforce – people who identify as women, non‑binary or gender non‑conforming, LGBTQIA+, American Indian or Native Alaskan, Black or African American, Hispanic or Latinx, Native Hawaiian or Other Pacific Islander, differently‑abled, caretakers and parents, and veterans are strongly encouraged to apply. Thank you to the Level Playing Field Institute for this statement of non‑discrimination.

Pursuant to the San Francisco Fair Chance Ordinance, Los Angeles Fair Chance Initiative for Hiring Ordinance, and any other state or local hiring regulations, we will consider for employment any qualified applicant, including those with arrest and conviction records, in a manner consistent with the applicable regulation.