# Principal Electrical Engineer - Power Plant Integration Lead at Mainspring Energy

- Company: Mainspring Energy
- What the company does: Local power generation for data centers, utilities, industrial & enterprise applications. Fuel-flexible, fast to deploy, high-efficiency, low NOx power. Backed by General Catalyst and Khosla.
- Company website: https://www.mainspringenergy.com/
- Type: Startups
- Level: Principal and up
- Location: Menlo Park, CA
- Work setup: On-site
- Pay: $221K to $260K base salary per year (USD)
- Posted: 2026-09-17
- Apply by: 2026-11-01
- Apply: https://jobs.lever.co/mainspringenergy/cbccd3c2-a0d7-4215-8f21-70842c8b858b
- Page: https://www.1752.vc/careers/jobs/mainspring-energy-principal-electrical-engineer-power-plant-integration-lead/

## About the role

As we scale our deployments from Behind-The-Meter (BTM) commercial microgrids to utility-scale Front-of-the-Meter (FTM) power plants and data centers, we are expanding our system boundaries to provide fully integrated, turn-key power solutions.

## What they're looking for

- Bachelor's or advanced degree in Electrical Engineering or a related field
- 24+ years of direct experience productizing complex, multi-disciplinary industrial systems
- Deep technical knowledge of power conversion systems, including medium-voltage (MV) step-up transformers (12.47kV–35kV), central inverters, switchgear, vacuum circuit breakers, protective relays, and high-current busbar/cabling systems
- Demonstrated experience driving the engineering lifecycle of modular hardware systems, including a strong grasp of design-to-cost principles, supplier capacity scaling, field reliability, and configuration control
- Strong cross-functional leadership skills with a track record of translating diverse technical requirements from electrical, mechanical, and operations teams into a cohesive, manufacturing-ready system design
- Demonstrated success directing 3rd-party design, engineering, or Contract Manufacturing (CM) partners from initial concept through to sustained volume production

Tags: Electrical Engr