Senior Battery Systems Engineer — Performance & Integration

Gotion; Irvine (CA); On-site; USD 150,000 - 210,000; Full time

Job summary

Gotion Inc. in Irvine, CA seeks an experienced Staff/Principal Battery Systems Engineer – Performance & Integration to own HV battery system performance across North American EV programs. You will translate vehicle requirements into system targets, drive trade-offs, and lead validation with internal teams and OEMs.

The role requires strong cross-functional leadership, deep knowledge of battery architecture, BMS, thermal, and validation, plus experience with EV programs and OEM collaboration.

Qualifications

• BS/MS/PhD in Electrical, Mechanical, Chemical, Automotive, Systems Engineering, or a related discipline.
• 7+ years of experience in EV, HV battery, battery pack, or electrified powertrain systems engineering.
• Strong understanding of HV battery system architecture; cells, modules, packs, BMS, HV components, thermal systems, sensing, charging, and vehicle interfaces.

Responsibilities

• Own and drive HV battery system performance and integration for North American programs from requirements through validation and issue resolution.
• Translate vehicle-level requirements into system, pack, cell, BMS, thermal, and validation requirements and performance targets.
• Lead trade-off analyses across energy, power, fast charging, thermal performance, durability, aging, safety, cost, and packaging.
• Serve as primary technical interface between OEM customers and internal battery teams (Cell, Pack, BMS, Thermal, Electrical, CAE, Validation).
• Develop and maintain system-level requirements, performance specs, DFMEAs, diagnostic requirements, and technical documentation.
• Analyze battery and vehicle data to identify performance limitations and root causes; drive cross-functional resolution.
• Support and lead battery performance validation including fast charging, cold/hot weather, power capability, energy/range, aging, and vehicle testing.
• Partner with BMS and controls on SOC/SOH, power limits, charging strategy, diagnostics, and system-level control requirements.
• Support vehicle launch and field issue resolution; ensure issues are driven to closure across teams.
• Help establish system engineering methodologies and technical standards for North American EV organization.
• Provide technical mentorship to engineers and influence decisions beyond authority.

Skills

Battery systems engineering

HV battery architecture

BMS integration

Thermal management

System validation

Cross-functional collaboration

Vehicle testing

Education

Electrical engineering

Mechanical engineering

Job description

Gotion Inc. in Irvine, CA seeks an experienced Staff/Principal Battery Systems Engineer – Performance & Integration to own HV battery system performance across North American EV programs. You will translate vehicle requirements into system targets, drive trade-offs, and lead validation with internal teams and OEMs.

The role requires strong cross-functional leadership, deep knowledge of battery architecture, BMS, thermal, and validation, plus experience with EV programs and OEM collaboration.