Battery Electrical Engineer

We are seeking a Battery Electrical Design Engineer to serve as a primary technical authority for our high-voltage (HV) battery systems and power distribution architectures. In this role, you will lead the electrical development of safety-critical propulsion systems for our eVTOL aircraft, bridging the gap between cell-level energy storage and aircraft-level power conversion.

As a Battery Electrical Design Engineer, you will focus on the design, analysis, and integration of HV components, ensuring the electrical system is optimized for high power density, EMI/EMC compliance, and rigorous aerospace safety standards. You will be a key contributor to the Energy Storage and Power Systems (ESPS) team, driving the electrical architecture from conceptual trade studies to flight-certified hardware.

• Architect HV Power Systems:
  Define and design the high-voltage distribution architecture, including busbars, wiring harnesses, contractors, fuses, and power electronics interfaces.
• Design Battery Electrical Systems:
  Lead the electrical design of battery modules and packs, focusing on sensing (voltage/temperature), cell balancing circuits, and high-current interconnects.
• Design Battery Charging Systems. Lead the development of on-board and off-board charging systems, ensuring compatibility with high-power standards such as CCS, MCS and NACS.
• Execute Electrical Analysis:
  Perform detailed electrical modeling and simulation, including power budget analysis, voltage drop calculations, fault current modeling, and thermal-electrical co-simulation.
• Manage EMI/EMC & Shielding:
  Define grounding and shielding strategies to ensure system compatibility and compliance with aerospace electromagnetic interference standards (e.g., DO-160).
• Drive HV Safety & Protection:
  Design isolation monitoring, interlock circuits (HVIL), and circuit protection schemes to ensure operator safety and system resilience during fault conditions.
• Lead Validation & Testing:
  Design and oversee electrical verification plans, including high-current characterization, insulation resistance testing, and dielectric withstand (HiPot) validation.

• Technical Lead for HV Systems:
  Serve as the subject matter expert for electrical physics, providing guidance on component selection (e.g., MOSFETs, IGBTs, contractors) and high-power PCB layouts.
• System-Level Optimization:
  Conduct trade studies to balance electrical efficiency against mass, volume, and thermal constraints in the propulsion string.
• Supplier Engagement:
  Draft technical specifications and Statements of Work (SOW) for HV components and sub-assemblies, managing technical deliverables from strategic partners.
• Failure Mode Analysis:
  Lead electrical Failure Mode and Effects Analysis (FMEA) to identify and mitigate risks such as short circuits, arc flashes, or insulation breakdown.
• Certification Support:
  Author technical reports and design descriptions to demonstrate compliance with aviation safety standards (ARP 4754,DO-311A, DO-160, ARP 4761).

• Education:
  
  B.S., M.S., or Ph.D. in Electrical Engineering or a related field.
• Experience:
  
  8+ years of experience in electrical design, specifically with high-voltage (> 400V) systems in aerospace, EV propulsion, or heavy transportation.
• General Electrical Mastery:
  • HV Design:
    Deep expertise in high-power distribution, busbar design, and creepage/clearance requirements for high-altitude environments.
  • Analysis Tools:
    Proficiency in SPICE (LTspice/PSpice), MATLAB/Simulink, or equivalent tools for transient and steady-state electrical simulation.
  • Sensing & Control:
    Experience with Battery Management System (Client) hardware, including precision voltage/current sensing and isolation circuits.
• Battery Specifics:
  Applied…