Mainspring Energy

Electrical Engineer - Power Systems Integration

Job Description

Posted on: 
2026-05-11

Responsibilities

  • Lead the selection, sizing, and configuration of industrial grid-interactive off-the-shelf (OTS) inverters.
  • Lead troubleshooting and root cause analysis of complex hardware issues in the field, lab, or during testing.
  • Configure and tune inverter parameters for stable operation across grid-forming and grid-following modes.
  • Design system-level tests to validate grid-edge behaviors, including low-voltage ride-through (LVRT) and frequency response.
  • Analyze AC power waveforms, power quality, and fault behavior to diagnose system issues.
  • Ensure compliance with grid interconnection standards such as IEEE 1547 and UL 1741.
  • Perform critical design reviews and collaborate cross-functionally with other engineering teams.

Job Requirements

  • Bachelor's or Master's degree in Electrical Engineering or related field.
  • 3+ years of hands-on experience with power inverters or power conversion systems.
  • Strong troubleshooting skills with AC power systems.
  • Comfort working on high voltage systems (400-800 Vac, up to 1500Vdc).
  • Experience with industrial communication protocols for power electronics control.
  • Working knowledge of NEC regarding grounding, conductor sizing, and overcurrent protection.
  • Ability to work independently and manage complex technical problems.
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