# Senior Mechanical Engineer 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: Senior
- Location: Menlo Park, CA
- Work setup: On-site
- Pay: $140K to $165K base salary per year (USD)
- Posted: 2026-08-06
- Apply by: 2026-10-08
- Apply: https://jobs.lever.co/mainspringenergy/ed67b7fd-e38d-4927-90ce-225cd89e085e
- Page: https://www.1752.vc/careers/jobs/mainspring-energy-senior-mechanical-engineer/

## About the role

Before you apply, a quick note on your resume We care about the substance of your work and want to make sure we learn as much as we can about your design experience. To help us evaluate your experience accurately, please ensure your resume includes:

## What they're looking for

- BS or MS in Mechanical Engineering or a similar engineering field, with demonstrated experience owning mechanical design work beyond task-level execution
- Repeated experience designing, testing, iterating, and releasing mechanical hardware across multiple design cycles, not only supporting isolated tasks or one phase of development
- Ability to independently own a significant subsystem, project, or technical workstream with moderate ambiguity, cross-functional dependencies, and meaningful program impact
- Demonstrated ability to use analysis, testing, data, and engineering judgment to make design tradeoffs, validate performance, and resolve technical problems
- Strong communication and project execution skills, including the ability to define scope, manage dependencies, escalate risks with recommendations, and align technical and non-technical stakeholders

Tags: Mechanical and Structural Systems