# Senior R&D 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: Senior
- Location: Devens, MA
- Work setup: On-site
- Pay: $134K to $205K base salary per year (USD)
- Posted: 2026-11-04
- Apply by: 2026-12-19
- Apply: https://jobs.lever.co/cfsenergy/ecff396c-d449-4416-8c4d-2998dcb91023?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/commonwealth-fusion-systems-cfs-senior-r-and-d-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 engineering or science field is required, mechanical engineering, electrical engineering or similar, or applied physics degree preferred
- 7+ years’ experience as an R&D engineer or test engineer designing, building, commissioning complex electromechanical systems
- Experience working on a multi-disciplinary engineering project, ideally as a technical leader
- Excellent fundamental knowledge of mechanical systems such as static structures and heat transfer
- Experience with developing and executing test procedures
- Proficiency with CAD design in Siemens NX or equivalent CAD software

Tags: R&D Test

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/commonwealth-fusion-systems-cfs-senior-r-and-d-engineer/