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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Lead Test Engineer, ESS - **Company:** Peak Energy - **Location:** Burlingame, CA, United States - **Experience:** Expert - **Salary:** $150,000.0 - $215,000.0 - **Contract:** Internship / Graduate position - **Skills:** Data Analysis, Automation of Tests, Rapid Prototyping Process, Test Data, Strategies of Testing, Data Processing, Modeling and Simulation - **Published:** August 12, 2026 - **Apply:** https://www.careerbuilder.com/job-details/lead-test-engineer-burlingame-ca--373d1494-e5ff-4a7c-9d25-86aaa06e9da6 ## About the Role * Bachelor's degree in Mechanical Engineering, Electrical Engineering, Aerospace Engineering, or a related field * 3+ years of experience in test engineering, preferably within battery storage or renewable energy sectors; includes relevant internships and student group projects * Strong understanding of electromechanical engineering first principles * Proficiency in data processing and analysis tools * Excellent problem-solving skills with the ability to think critically and act decisively * Strong communication skills with the ability to present complex technical information clearly to both technical and non-technical stakeholders * Ability to work collaboratively in a fast-paced, dynamic environment * Proactive ownership mindset with a strong sense of accountability Preferred Qualifications * Experience with battery systems, energy storage, or power electronics testing * Familiarity with automated test systems or rapid prototyping workflows * Background in reliability, abuse, or environmental stress testing, * 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., Aerospace Engineering, Alternative Energy, Analysis Skills, Apple, Automation, Communication Skills, Corrective Action, Data Analysis, Data Processing, Electrical Engineering, Electricity, Electromechanical Engineering, Electronics, Entrepreneurship, Failure Analysis, Functional Testing, Investment Strategy, Leadership, Manufacturing Engineering, Mechanical Engineering, Presentation/Verbal Skills, Problem Solving Skills, Procedure Development, Process Improvement, Product Safety, Quality Assurance Methodology, Rapid Prototyping, Record Keeping, Reporting Skills, Risk Analysis, Root Cause Analysis, Safety Training, Simulation, Strategic Planning, Stress Testing, Team Player, Technical Presentation, Test Automation, Test Data, Test Equipment, Test Plan/Schedule, Test Strategy, Testing ## Description Location: This role will be based in Sacramento, CA. During the first 3-6 months, the position will be based in our Burlingame, CA headquarters for onboarding before transitioning permanently to Sacramento., We are looking for a Lead Test Engineer to support our testing and functional verification efforts for our energy storage systems, from battery to power electronics. This role works closely with design and simulation teams to understand risks, develop procedures, set up and run tests, and report on findings that directly inform the design direction of our products. You will interface tightly with design, simulation, and manufacturing engineering partners across a fast-moving, early-stage energy company. This role sits at the intersection of technical rigor and rapid iteration, with a direct impact on product safety, reliability, and performance. The ideal candidate is a self-starter who is hungry for knowledge, holds themselves and others to high standards, and brings a get-it-done attitude to every challenge - big or small. What You'll Do * Lead and conduct comprehensive testing of functional, thermal, electrical (HV/LV), and mechanical systems across our energy storage products * Develop test strategies, plans, and procedures to evaluate key risks against performance, reliability, abuse/safety, and functional requirements * Spearhead the design and acquisition of testing equipment and infrastructure * Collaborate with engineering teams to ensure design integrity and drive improvements * Analyze complex test data, report findings, and drive system enhancements * Identify, diagnose, and resolve intricate technical issues during testing * Perform root cause analysis on system failures and develop corrective and preventive actions * Drive innovation in testing methodologies and practices * Interface tightly with design, simulation, and manufacturing engineering partners to inform design decisions * Maintain detailed records of tests, analyses, and corrective actions; prepare reports and presentations for internal and external stakeholders * Drive and participate in a culture of rapid prototyping and automation ## Related Videos - [Why I Love End-2-End Tests and How To Get Them Right](https://www.wearedevelopers.com/videos/996-why-i-love-end-2-end-tests-and-how-to-get-them-right) - [Dirty Tests And How To Clean Them](https://www.wearedevelopers.com/videos/515-dirty-tests-and-how-to-clean-them) - [Data Science in Retail](https://www.wearedevelopers.com/videos/586-data-science-in-retail) - [Implementing continuous delivery in a data processing pipeline](https://www.wearedevelopers.com/videos/73-implementing-continuous-delivery-in-a-data-processing-pipeline) - [SMART Test Automation - the experience of legacy transformation](https://www.wearedevelopers.com/videos/100215-smart-test-automation-the-experience-of-legacy-transformation) - [The Innovation Formula: Fast Prototyping, Data Analysis, and Real User Insights](https://www.wearedevelopers.com/videos/1421-the-innovation-formula-fast-prototyping-data-analysis-and-real-user-insights) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [A Guide to Green Tech and Green IT Careers](https://www.wearedevelopers.com/magazine/374-a-guide-to-green-tech-and-green-it-careers) - [Top Characteristics of a Software Engineer](https://www.wearedevelopers.com/magazine/166-top-characteristics-of-a-software-engineer) - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Data Science & more: The Lopez dilemma](https://www.wearedevelopers.com/magazine/10-data-science-more-the-lopez-dilemma)