Whoop - Senior Battery Engineer

• Lead the design, qualification, and lifecycle sustainment of lithium-ion battery systems that • power WHOOP’s advanced wearable technology. This role is critical to achieving the highest • levels of energy density, reliability, and safety in compact, high-performance form factors. Serve • as the technical lead for WHOOP’s battery systems, driving development across internal • engineering teams and external partners. Drive innovation in cell design and integration to • support long-lasting, compact energy systems that meet WHOOP’s demanding performance • standards. Own the batteries subsystem and ensure optimal reliability and safety under real- • world use conditions. Collaborate with electrical, mechanical, firmware, reliability, and quality • engineers to optimize battery system performance in a multidisciplinary development • environment. Lead the creation and execution of test plans, including Design of Experiments • (DOE), performance validation, and root cause failure analysis for battery-related issues. • Evaluate and qualify battery suppliers and manufacturing partners, ensuring alignment with • WHOOP’s product standards and regulatory requirements. Maintain organized documentation • for test results, field performance data, and compliance with international safety and regulatory • standards (UL, CE, IEC). Ensure WHOOP’s battery systems meet or exceed global safety and • certification benchmarks, supporting regulatory filings as needed. Conduct field quality • assessments and lead corrective actions for battery-related concerns. Mentor junior engineers and • contribute to technical roadmaps for future product innovation. Manage battery subsystem • development timelines and cross-functional team coordination to ensure on-time delivery of new • and sustained battery technologies. Work with firmware and Electrical engineers to develop and • optimize the fuel gauge and battery management system for the WHOOP line of products.