Systems Integration and Test Engineer Intern (Winter 2027)

Systems Integration and Test Engineer Intern (Winter 2027)ESS Engineering in Burlingame, California is looking for a Systems Integration and Test Engineering Intern. This internship is for the Winter 2027 term.About Peak Energy: 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, and Fluence. We are backed by strategic investment and product partners such as TDK Ventures and Eclipse Ventures.

We are a team of engineers, operators, entrepreneurs, and partners driven by a shared ambition to set the new performance standard for renewable energy and grid resilience.About the Role – Systems Integration and Test Engineering Intern: This intern will support integration testing and functional verification of Peak Energy's energy storage systems, working across BMS, inverters, and other systems from batteries to power electronics. As Peak Energy scales its ESS testing infrastructure, this role helps build out the benchtop and HIL test capabilities needed to validate systems ahead of production. You'll work closely with firmware, design, and simulation teams, gaining exposure to the full test lifecycle – from procedure development to execution to reporting. This role suits a hands-on, curious engineer who's eager to learn by doing and comfortable navigating ambiguity in a fast-moving startup environment.What You'll Do (Responsibilities):Support functional testing of BMS, inverters, and other systems across Peak Energy's energy storage productHelp design, set up, and run benchtop and HIL test setups for validation of the BMSDevelop and execute test scripts to support test automation effortsAssist in developing test plans and procedures across electrical and mechanical systemsInterface with design, simulation, and manufacturing engineering partners to inform design decisionsHelp analyze test data and document findings for engineering teamsSupport troubleshooting and diagnosis of issues identified during testingParticipate in a culture of rapid prototyping and testingWhat You'll Bring (Qualifications):Pursuing a Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, or a closely related fieldExperience interfacing with microcontrollers and writing scripts for functional testingBasic familiarity with electromechanical test setupsProficiency in Python or similarStrong analytical and problem-solving skillsComfortable working hands-on with hardware and lab equipmentPassion for renewable energy, sustainability, and driving positive environmental impact through technology innovationEligible to work in the U.S.Preferred Qualifications:Exposure to high voltage battery and power electronics systemsFamiliarity with battery management systems (BMS) architectureCoursework or project experience with hardware-in-the-loop (HIL) test systemsPeak 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.Our Core Values: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.Compensation & Benefits: The hourly rate for this role is $35/hr.

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.