Embedded Systems Software Engineer

Proterra offers a dynamic and supportive workplace where our employees can thrive personally and professionally. With cutting‑edge facilities and groundbreaking projects, Proterra offers unique opportunities to grow, collaborate, and lead transformative changes in the electrification of heavy‑duty transportation and equipment.

Our commitment to innovation extends beyond our battery solutions to our people, where we create an environment where everyone feels valued, supported, and empowered to drive change for the earth. Here at Proterra we strive to foster a culture of inclusivity, valuing diverse perspectives and encouraging bold ideas, allowing our employees to bring their full selves to work. Our employees benefit from competitive total rewards packages, and opportunities to develop professionally.

Proterra is seeking an Embedded Systems Software Engineer to join the Battery Management Systems (BMS) team in a field reliability and current product support capacity. This role is focused on sustaining and improving production BMS software through diagnostics implementation, calibration, and hands‑on field issue resolution — ensuring deployed battery systems continue to perform safely and reliably throughout their operational life.

The ideal candidate brings 2–3 years of experience in embedded software development within automotive, EV, or battery systems, with practical knowledge of BMS diagnostics, CAN/UDS communication protocols, and calibration tool chains. This is an excellent opportunity for an early‑career engineer to build deep expertise in BMS sustainment and field engineering within a high‑impact electrification program.

This is a role that offers direct engagement with deployed battery systems in the field, close collaboration with manufacturing and service teams, and a clear path to deeper BMS application development as the engineer grows within the organization.

• Serve as the primary engineering point of contact for current production BMS software, owning field issue intake, investigation, and corrective action deployment in coordination with field service and manufacturing teams
• Implement and calibrate BMS diagnostic features including DTC definitions, debounce and healing logic, fault memory management, and EOL diagnostic routines using Vector tools (CANalyzer, CANape)
• Analyze field data and warranty return information to identify recurring software‑related failure modes, document root cause findings, and support corrective action development
• Support implementation and validation of CAN‑based communication stacks; perform network‑level signal capture, analysis, and debugging using CANalyzer and equivalent tools
• Develop and validate UDS (Unified Diagnostic Services) service implementations for fault memory access, ECU identification, and EOL flash programming; support calibration workflows using CANape
• Execute calibration and measurement workflows using Vector tools (CANalyzer, CANape) across HIL, bench, and vehicle‑level test environments; maintain calibration datasets and support release processes
• Serve as the sustaining software lead for assigned BMS features, managing software change requests, regression test execution, and SW release coordination for current production programs
• Review and support integration of embedded C/C++ and MATLAB/Simulink‑generated code changes into production BMS controllers; execute regression testing and document verification results
• Author and maintain field reliability documentation including failure analysis reports, software change records, and calibration release notes
• Collaborate with cell characterization, manufacturing, and field service teams to triage BMS software anomalies, validate proposed software fixes, and support over‑the‑air or depot update deployments
• Participate in design reviews, code reviews, and change board meetings to support current production program sustainment and continuous improvement
• Support manufacturing engineering with BMS end‑of‑line (EOL) test software, production diagnostic coverage validation, and process‑related software configuration management
• Lead root cause analysis for…