Senior Cell Validation & Reliability Engineer

• Validate the electrical and mechanical integration of supplier cells into Peak Energy ESS platforms; own the cell-side validation verdict at each integration point.
• Move validation from spec verification to population statistics: design cell-to-cell and batch-to-batch variation studies and quantify how variance propagates to system-level performance — balancing burden, thermal gradients, mechanical preload windows, and energy/power delivery.
• Mechanical: validate cell behavior under system-representative compression; characterize force versus state of charge and swell over life; deliver force–displacement–life datasets that inform foam/pad selection and preload design by systems engineering.
• Electrical & BMS: Assist in analysis with measured variation accounted for of OCV characterization, equivalent-circuit parameters; quantify cell-in-system versus bench performance deltas.
• Establish the statistical foundation: measurement system analysis (MSA / Gauge R&R) across cell test equipment, capability analysis against specification, and statistically justified sample sizes, acceptance criteria, and validation exit criteria.

• Own the cell reliability test roadmap: inform sample size requirements for calendar life, cycle life, and accelerated aging test plans designed explicitly to inform reliability analysis — not only to characterize performance.
• Deliver the authoritative cell-level input to system reliability evaluation: failure-rate estimates, life distributions under product duty cycles, degradation trajectories, and derating guidance.
• Track reliability performance across supplier lots and chemistries; participate in root cause analysis of cell-related reliability failures and feed findings back into test plans and supplier requirements.

• Own the cell-requirements and reliability-input handoffs; participate in DFMEAs for cell-driven failure modes.
• Share variation and reliability findings with supplier quality: this role owns the performance and reliability implications of variation.
• Pair with cell modeling: measured variation and life data validate equivalent-circuit, thermal, and degradation models; model predictions guide test-plan design.

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• 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.
• Working knowledge of BMS fundamentals: SOC/SOH estimation, cell balancing, and protection limits.
• Proficiency in Python or equivalent for engineering data analysis.

• Reliability methods: reliability block diagrams, failure-rate (FIT) allocation, MTBF modeling.
• Experience owning DVP&Rs and driving validation programs from plan through sign-off.
• Sodium-ion or LFP cell experience.
• Experience partnering with modeling teams on equivalent-circuit, thermal, and degradation model validation.
• DFMEA participation on module/pack programs.

Peak Energy is committed to building a diverse and inclusive workforce.

We strongly encourage women, people of color, and individuals from underrepresented groups to apply.

We value skills, potential, and perspective over specific credentials.

If you’re excited about this role but your experience doesn’t look perfect on paper, we still want to hear from you.

• Speed Through Focus - Move fast but understand why. Focus on the goal, don't sacrifice quality.
• Mission Over Self - It's about the greater good; confident humility. Take ownership and accountability.
• Face the Brutal Truth - Transparency, honesty, big picture curiosity. Fearless decision making.
• Be a Good Person - Kindness, collaboration and teamwork.

The salary range for this role is $150,000–$190,000 , with actual pay varying based on work location, experience, and skills.

Our competitive benefits package includes:

• Flexible time off
• Comprehensive medical, dental, and vision coverage
• Strong 401(k) plan
• Equity opportunities
• Many great work perks

Join us to thrive in a supportive environment while making a meaningful impact in the energy sector!

At Peak Energy Technologies Inc., we believe that a diverse and inclusive workplace makes us a more capable, innovative, and competitive company.

We welcome people who represent diversity in their backgrounds, ethnicities, cultures, and experiences.

Peak Energy Technologies Inc. is an equal opportunity employer, aiming to reach our company’s full potential by cultivating an inclusive workforce.

We do not discriminate on the basis of race, color, ancestry, religion, national origin, sexual orientation, citizenship, marital or family status, disability, gender identity or expression, veteran status, or any other legally protected status.