C2H || Senior Electrical Engineer || Berkeley, California

Senior Electrical Engineer - Isolation & Power Integrity

Location: Onsite-Berkeley, CA (can be remote during contract duration, then relocate when converted)

Duration: Contract-to-hire

Mission / About the Role

They are hiring a Senior Electrical Engineer to own electrical isolation and power distribution across 600VAC, 2kV DC, and 50V DC systems. The role focuses on system-level power distribution, isolation strategy, power budgeting, and ampacity analysis for complex BESS systems-not PCB design. You'll work closely with the Staff EE, design owner, compliance, hardware, and test teams.

Top 3 Qualifications / Responsibilities

1. Design 600V+ 3-phase and split-phase AC power distribution systems.
2. Define clearance, creepage, and dielectric isolation requirements across HVAC, HVDC, and LVDC systems.Define clearance, creepage, and dielectric isolation requirements across HVAC, HVDC, and LVDC systems.
3. Design isolation barriers compliant with UL508A, IEC 60664-1, or equivalent.

Key Responsibilities

• Define isolation requirements for components/materials across 50 VDC, 600 V AC, and 2 kV DC domains.
• Design custom isolation barriers and define isolation test criteria.
• Ensure isolation architecture meets UL508A and is captured in DFMEA.
• Perform ampacity, load, power budget, and phase-balance analysis for 600V AC systems.
• Identify worst-case loading and recommend load balancing/load-shedding.
• Size protection and feeder conductors and coordinate with panel designers.
• Lead design reviews and communicate technical decisions cross-functionally.

Required Qualifications

• BS in Electrical Engineering or equivalent.
• 8+ years in high-power electrical systems or panel design.
• Proficiency with EPLAN or equivalent electrical CAD tools.
• Experience with HV AC/DC isolation, clearance, creepage, and dielectric coordination.
• Strong knowledge of UL508A / IEC 61439.
• Hands-on experience with 600V 3-phase/split-phase distribution, ampacity, phase balancing, and NEC protection coordination.
• Experience with high-power/high-voltage power conversion devices.
• High-voltage, safety-critical environment experience.
• Strong problem-solving and cross-functional communication skills.

Preferred Qualifications:

• DFMEA experience for high-voltage electrical systems.
• EV, battery, or energy storage experience, especially 10kV+ DC systems.
• Control panel design experience.
• High-power test equipment panel design (10kW+).
• Arena PLM experience.
• MATLAB or simulation experience.

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