Commonwealth Fusion Systems
Staff Fuel Cycle & Blanket Test Engineer
$152K–$230K
Devens, MA · On-site · Staff · Full-time · Posted Sep 30, 2026
- Experience
- 10 years of experience; bonus points for 10+ years in a production or laboratory setting.
- Education
- MS in Engineering (chemical, materials, micro-nano engineering, or mechanical engineering with a focus on heat/mass transport), physics, chemistry, or a related field.
- Visa sponsorship
- Employment offers are contingent on compliance with U.S. Export Control Laws.
About the job
Leads testing, commissioning, operation, and continuous improvement of laboratory systems and test campaigns for fusion fuel-cycle and blanket technologies, including tritium handling and molten salts.
What you'll do
- Develop and lead commissioning and test plans, coordinating execution and reporting for tritium and blanket test stands.
- Build and maintain laboratory infrastructure, equipment, procedures, safety practices, and workflows.
- Operate gas-handling and molten-salt systems; document findings and contribute to training and continuous improvement.
What they ask for
- MS in a relevant field, including engineering, physics, or chemistry, with 10 years of experience.
- Experience building and executing tests in an R&D setting.
- Experience with rigorous data management, including programming to generate reports; Python is cited for data analysis.
- Clear technical writing and communication, attention to safety, and ability to work effectively in multidisciplinary teams.
Nice to have
- Experience with high-purity, rare, or tritium gases; molten salts or corrosive fluids; gloveboxes or hazardous-material handling.
- Experience with analytical equipment, high-vacuum systems, process-plant systems, Confluence, or JIRA.
Pay
USD 152,000–230,000 per year (base salary)
Tools
Python, Confluence, JIRA
Model-written summary · the original posting is authoritative