Energy Systems Integration Engineer – HV & Vehicle

Pentangle Tech Services | P5 Group; Novi (MI); On-site; USD 90,000 - 130,000; Full time

Job summary

Pentangle Tech Services | P5 Group in Novi, MI is seeking a Project / Integration Engineer – Energy Systems to lead the vehicle‑level integration of HV and LV energy subsystems. You will drive HV architecture integration, interface alignment, and validation planning to ensure energy subsystems meet program timing, quality, and performance targets.

The role requires hands‑on experience with HV systems (batteries, BMS, charging) and strong cross‑functional collaboration within automotive

Qualifications

• Bachelor’s degree in Electrical, Mechanical, or Systems Engineering (or equivalent experience).
• 3+ years of experience in automotive or energy systems integration.
• Hands-on experience with HV systems (batteries, BMS, charging, power electronics).
• Knowledge of HV/LV electrical architectures and vehicle integration.
• Experience with CAN-based communication and interface troubleshooting.
• Exposure to DFMEA, DVP&R, and validation process.
• Strong cross-functional communication and coordination skills.

Responsibilities

• Support integration of Energy Systems subsystems, including HV Battery, BMS, Energy Management, Thermal Systems, Charging, HV/LV Bus, and HV Safety, into the vehicle platform.
• Integrate and align HV component communication interfaces across energy subsystems.
• Identify gaps in system and interface definitions; collaborate with engineering teams to ensure consistent expectations and interface alignment.
• Own integration of HV components into the HV Bus Architecture, including mechanical and electrical interfaces.
• Develop, maintain, and release HV and supporting LV bus specification documents.
• Own and maintain HV mechanization diagrams and system architecture documentation.
• Apply strong expertise in integrating power electronics (battery packs, DC‑DC converters, inverters, chargers) into the HV bus.
• Coordinate rapid studies, integration activities, and issue resolution across the Energy Systems organization.
• Support and manage weekly Energy Systems kickoff meetings, including agenda preparation and follow‑up.
• Collaborate with Functional Safety and HV Safety teams to define validation and compliance test plans.
• Participate in DFMEA reviews, cross‑functional engineering discussions, and vehicle launch support.
• Adapt to changing work packages and program priorities throughout the product lifecycle.

Skills

3+ years automotive systems experience

CAN-based communication

interface troubleshooting

cross-functional communication

validation process exposure

Education

Bachelor’s degree in Electrical, Mechanical, or Systems Engineering

Job description

Pentangle Tech Services | P5 Group in Novi, MI is seeking a Project / Integration Engineer – Energy Systems to lead the vehicle‑level integration of HV and LV energy subsystems. You will drive HV architecture integration, interface alignment, and validation planning to ensure energy subsystems meet program timing, quality, and performance targets.

The role requires hands‑on experience with HV systems (batteries, BMS, charging) and strong cross‑functional collaboration within automotive