Senior BMS Engineer

Senior BMS Engineer

We are seeking a Principal Battery Management System (BMS) Engineer to provide technical leadership, architectural ownership, and long-term stewardship of advanced BMS solutions. The role involves defining the technical direction, owning system-level architecture decisions, ensuring regulatory and functional safety compliance, and serving as the subject-matter expert across firmware, electronics, algorithms, and system integration.

Responsibilities

• Serve as the 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 focused on 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 the development and review of core BMS algorithms, including SOC, SOH, SOE, cell balancing, protection, diagnostics, and degradation monitoring.
• Own the interpretation and application of relevant safety and compliance standards as they relate to BMS design.
• Drive system-level requirements decomposition, traceability, and verification strategy.
• Lead DFMEA, FTA, and system-level risk assessments, ensuring mitigation strategies are implemented and verified.
• Guide the 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.

Essential Skills

• 15+ years of embedded systems work experience.
• 7+ years of experience working with battery or relevant energy systems preferred.
• 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.
• 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, CANO
  
  pen, 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.

Additional Skills & Qualifications

• Experience with algorithm development and system integration.
• Expertise in BMS (Battery Management System) and Embedded Systems.
• Proficiency in Systems Architecture and DFMEA.

Work Environment

The role involves working in a dynamic and innovative environment focused on developing robust and scalable BMS solutions. It requires collaboration across cross-functional teams to align BMS solutions with product roadmaps. The environment is fast-paced, emphasizing continuous improvement and technical excellence.

Job Type & Location

This is a Contract to Hire position based out of Ann Arbor, MI.

Pay and Benefits

The pay range for this position is $57.00 - $96.15/hr eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:
• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

Workplace Type

This is a fully onsite position in Ann Arbor, MI.

Final date to receive…