# Mechanical Engineer - Electromechanical 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: Mid level
- Location: Menlo Park, CA
- Work setup: On-site
- Pay: $114K to $140K base salary per year (USD)
- Posted: 2026-07-25
- Apply by: 2026-10-12
- Apply: https://jobs.lever.co/mainspringenergy/71954595-556b-41cc-bdee-6ab0ba43de28
- Page: https://www.1752.vc/careers/jobs/mainspring-energy-mechanical-engineer-electromechanical/

## About the role

Mainspring is seeking Mechanical Design Engineers with a focus on designing electrical enclosures and cables while improving functionality and system-level performance. In this role, you will lead projects from setting requirements, designing, conducting cross functional reviews, coordinating testing and release to ensure that key electrical subsystems meet challenging technical requirements with a potential for direct reports.

## What they're looking for

- Experience designing electrical enclosure and/or cable design
- Expertise in sheet metal design for medium-volume production, electrical component specification, mechanical design for electrical systems, and design-for-manufacturability challenges
- A solid understanding of electrical engineering principles and thermal modeling, and the ability to integrate them effectively into larger system designs
- Experience in SolidWorks and PDM (or a similar CAD version control system). Experience with CFD, FEA, and programs like SolidWorks Flow Simulation or Ansys is a plus
- Passion for creating innovative and cost-effective solutions to enable the large-scale deployment of zero-carbon energy technologies
- What you personally did , separate from what your team did. If you contributed to a group project, tell us your specific role and contribution

Tags: Electromechanical