# Diagnostics Mechanical Engineer at Commonwealth Fusion Systems (CFS)

- Company: Commonwealth Fusion Systems (CFS)
- What the company does: The world's largest and leading commercial fusion energy company. Backed by Khosla.
- Company website: https://cfs.energy/
- Type: Startups
- Level: Mid level
- Location: Devens, MA
- Work setup: On-site
- Pay: $107K to $160K base salary per year (USD)
- Posted: 2026-11-04
- Apply by: 2026-12-19
- Apply: https://jobs.lever.co/cfsenergy/a7b6c03f-b327-4707-beba-2db45ef128f8?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/commonwealth-fusion-systems-cfs-diagnostics-mechanical-engineer/

## About the role

This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively, “Export Control Laws"). Any offer of employment will be contingent on the need for compliance with such Export Control Laws. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- Bachelor’s degree in a relevant engineering field (mechanical, aerospace, civil or nuclear)
- 5+ years of relevant experience designing and delivering mechanical systems
- Demonstrated examples of delivering cradle-to-grave mechanical design with nuanced environmental or performance requirements
- Experience designing for manufacturing and assembly, and collaborating with partners to oversee or carry out integrated builds
- Bias toward action, and a balance of engineering intuition and technical rigor that allows for robust, simple designs to be generated with speed
- First principles based approach to engineering and ability to understand concepts and tradeoffs that bridge engineering and physics

Tags: Tokamak Systems

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/commonwealth-fusion-systems-cfs-diagnostics-mechanical-engineer/