Peak Energy designs and deploys grid-scale sodium-ion energy storage systems for reliable, lower-cost energy infrastructure. Backed by Eclipse Ventures.
About the role
Peak Energy is seeking a Senior Cell Validation & Reliability Engineer to own the validation and reliability foundation for the cells integrated into our energy storage systems. This role will move beyond cell specification verification to quantify how cell-to-cell and batch-to-batch variation impacts system-level performance and reliability.
What they're looking for
- B.S. in Mechanical, Electrical, or Chemical Engineering or a related field, M.S. preferred
- 5+ years in battery cell/module/pack validation or reliability engineering within automotive or stationary energy storage
- Reliability statistics: Weibull / life-data analysis, accelerated life testing, and confidence-bound methods for life claims
- Applied statistics in an engineering context: design of experiments, capability analysis, measurement system analysis, sample-size justification
- Hands-on familiarity with cell test methods: cyclers, environmental chambers, force/displacement measurement, and thermal instrumentation
- Depth in one integration axis — mechanical (compression, thermal interface) or electrical (BMS, system electrical performance) — with working competence in the other
More about this role
Job Title: Senior Cell Validation & Reliability Engineer
Position Type: Full-time
Peak Energy is the first American venture to advance globally proven sodium-ion battery systems as the storage standard for the new era of renewable energy on a resilient grid.
Sodium-ion is cheap, readily available, and safe — making it the leading contender in a rapidly evolving market.
Our leadership team is powered by decades of expertise in scaling gigawatt-level innovation at world-class companies such as Tesla, Northvolt, Apple, Powin, Enovix, Zipline, Solid Power, SunPower, and Fluence. We are backed by strategic investment and product partners including TDK Ventures, Eclipse Ventures, and GM Ventures.
We recently announced America's first sodium-ion grid storage factory in Sacramento with production starting Q1 2027, and over $1B in signed customer commitments including Jupiter Power and Energy Vault.
Peak Energy is seeking a Senior Cell Validation & Reliability Engineer to own the validation and reliability foundation for the cells integrated into our energy storage systems. This role will move beyond cell specification verification to quantify how cell-to-cell and batch-to-batch variation...
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