Senior BESS Product Safety Engineer (Energy)

TL;DR

Senior BESS Product Safety Engineer (Energy): Designing and ensuring the safety architecture of Battery Energy Storage Systems (BESS) with an accent on fire code compliance and safety standards. Focus on mitigating thermal runaway and explosion risks through rigorous testing, modeling, and regulatory approval processes.

Location: Must be based in the US (requires approximately 30% travel to operational projects across the U.S.)

Salary: $113,000 – $141,525 per year

Company

A Fortune 500 leader in renewable energy and global decarbonization, ranked #1 globally in renewable energy sales to corporations.

What you will do

• Interpret and apply NFPA, IFC, UL, and IEC standards to guide BESS product development throughout the design lifecycle.
• Own safety-critical BESS enclosure design and provide technical oversight to mitigate thermal runaway and explosion risks.
• Lead UL 9540 / 9540A testing and conduct fire and explosion modeling using tools such as FLACS, Ansys, or FDS.
• Develop fire code compliance matrices and manage permitting documentation with Authorities Having Jurisdiction (AHJs).
• Engage with industry consortiums to monitor and contribute to NFPA 855 and UL 9540 / 9540A revision cycles.
• Mentor junior engineers and contribute to the continuous improvement of BESS integration practices.

Requirements

• Bachelor’s degree in Electrical, Mechanical, or Fire Protection Engineering, or a related discipline.
• 5-7 years of experience in mechanical design and fire protection for energy, industrial, or safety-critical systems.
• Strong working knowledge of BESS fire codes including UL 9540/9540A, NFPA 68/69, 72, 855, and 110/111.
• Experience supporting permitting, testing, and regulatory approval processes.
• Proficiency with mechanical CAD tools such as SolidWorks and AutoCAD.
• Must have US work authorization (E-Verify required).

Nice to have

• Master’s degree in Electrical, Mechanical, or Fire Protection Engineering.
• Direct experience with utility-scale BESS.
• Active participation in standards organizations such as NFPA, UL, or IEEE.
• Experience with fire modeling tools (FLACS, Ansys, FDS, etc.).

Culture & Benefits

• Comprehensive medical, dental, and vision coverage.
• 401(k) eligibility and annual bonus.
• Paid time off including vacation, sick leave, and parental leave.
• Work environment recognized as a "Great Place to Work" and a top workplace for innovators.