Peak Energy is seeking a Senior Cell Test & Validation Engineer to play a key role in the cell-level test and validation program for commercial product cells. This role moves the cell from verification to validation — defining critical-to-quality (CTQ) metrics, designing the test campaigns that prove them out, and building the in-house infrastructure, fixtures, and data systems needed to execute them with rigor.
Requirements
- Define and execute electrochemical characterization of commercial product cells, including capacity, DCIR/HPPC, rate capability, OCV/SOC mapping, coulombic and energy efficiency, and incremental capacity / differential voltage (IC/DV) analysis.
- Own cycle life and calendar life test programs across temperature, SOC, and duty-cycle conditions; design accelerated aging protocols and analyze degradation modes to inform life models and product warranty positions.
- Design and execute self-discharge characterization (open-circuit, micro-shorts, parasitic loss) at the cell level, including long-duration low-current measurements and storage condition matrices.
- Own third-party test engagements for thermal runaway, heat generation, and abuse testing (e.g., nail penetration, overcharge, external short, propagation, ARC, thermal characterization).
- Build and qualify in-house test and data-acquisition fixtures — including thermal chambers, calorimetry setups, current/voltage harnesses, temperature sensing, and custom DAQ — to expand internal test capability and reduce reliance on external labs.
- Operate, maintain, and calibrate battery cycler hardware across the lab fleet; establish equipment qualification, channel verification, calibration cadence, and measurement uncertainty budgets.
- Define cell critical-to-quality (CTQ) metrics in partnership with Cell Engineering, Quality, and Systems teams; translate product requirements into measurable test criteria with clear pass/fail thresholds.
- Lead the transition from verification to validation: design statistically rigorous test campaigns (sample size justification, DOE, GR&R, capability analysis, tolerance intervals, reliability statistics) that establish confidence in production-intent cells.
- Author and maintain test plans, SOPs, test reports, and validation packages that withstand internal and external technical review; ensure traceability from requirement → test method → result → decision.
- Collaborate cross-functionally with Cell R&D, Cell Quality, Cell Modeling, Systems Engineering, and Supplier Industrialization to align test strategy, share data, and close out failure investigations.
- Mentor junior engineers and technicians on lab discipline, data hygiene, statistical thinking, and safe handling of energized cells.
Benefits
- Flexible time off
- Comprehensive medical, dental, and vision coverage
- Strong 401(k) plan
- Equity opportunities
- Many great work perks
