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Navitas Systems is seeking a Principal Battery Management System (BMS) Engineer to provide technical leadership, architectural ownership, and long-term stewardship of advanced BMS solutions for lithium-ion battery products serving military, commercial, and industrial markets.

The Principal BMS Engineer defines technical direction, owns system-level architecture decisions, ensures regulatory and functional safety compliance, and serves as the subject‑matter expert across firmware, electronics, algorithms, and system integration.

In this role, you will own and steward multi‑generation BMS platforms, define system‑level technical direction, and guide cross‑functional architectural decisions to ensure BMS solutions are robust, scalable, and aligned with current and future product roadmaps.

• Serve as technical authority for BMS architecture, including firmware, electronics, sensing, controls, and system integration.
• Define and maintain system‑level BMS architecture, design patterns, and technical standards across multiple product lines.
• Lead technical trade studies for safety, performance, cost, manufacturability, and long‑term maintainability.
• Establish best practices for embedded firmware architecture, hardware abstraction, diagnostics, and fault handling.
• Provide expert‑level guidance on embedded firmware design, real‑time systems, and safety‑critical software.
• Lead development and review of core BMS algorithms, including SOC, SOH, SOE, cell balancing, protection, diagnostics, and degradation monitoring.
• Own interpretation and application of relevant safety and compliance standards (e.g., UL, IEC, ISO, functional safety guidance) as they relate to BMS design.
• Drive system‑level requirements decomposition, traceability, and verification strategy.
• Lead DFMEA, FTA, and system‑level risk assessments; ensure mitigation strategies are implemented and verified.
• Guide development of end‑of‑line test strategies, diagnostic coverage, and service tools.
• Ensure BMS designs are manufacturable, testable, and serviceable at scale.
• Support long‑term sustainment, reliability improvements, and continuous improvement initiatives.
• Other duties as assigned by management.

• Master’s degree in Electrical Engineering, Computer Science, or Computer Engineering preferred; or Bachelor’s degree in a related field with relevant certifications or graduate‑level coursework.
• 15+ years of embedded systems work experience.
• 7+ years of experience working with battery or relevant energy systems preferred.

• Recognized expert in BMS firmware, electronics, and system‑level design.
• Deep understanding of lithium‑ion battery behavior, protection strategies, and safety mechanisms.
• Proven ability to define and evolve system architectures across multiple product generations.
• Advanced proficiency with embedded communication protocols (SPI, I2C, CAN, CANOpen, J1939, UDS).
• Strong experience with verification, validation, and compliance in regulated or safety‑critical environments.
• Exceptional analytical and problem‑solving skills, including root‑cause analysis of complex system issues.

To conform to U.S. Government International Traffic in Arms Regulations (ITAR) the individual must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.

Disclaimer: This job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.

Navitas/East Penn offers excellent benefits:

• Competitive compensation
• Group health insurance that includes high quality medical, dental, vision and prescription coverage with a low employee premium
• Retirement Savings Plan with company match and a 3% employer contribution
• Paid company holidays and Paid Time Off (PTO)
• Employee assistance program
• Fitness Discounts
• Promotional opportunities

EOE/VEVRAA