Systems Integration and Test Engineer Intern (Winter/Spring - Jan 2027 Start)

Peak Energy Job Title: Systems Integration and Test Engineering Intern Location: Burlingame, CA Department: ESS Engineering Reports To: Senior Manager, Test Engineering Position Type: Internship (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 product Help design, set up, and run benchtop and HIL test setups for validation of the BMS Develop and execute test scripts to support test automation efforts Assist in developing test plans and procedures across electrical and mechanical systems Interface with design, simulation, and manufacturing engineering partners to inform design decisions Help analyze test data and document findings for engineering teams Support troubleshooting and diagnosis of issues identified during testing Participate in a culture of rapid prototyping and testing What You'll Bring (Qualifications) Pursuing a Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, or a closely related field Experience interfacing with microcontrollers and writing scripts for functional testing Basic familiarity with electromechanical test setups <spa