Commonwealth Fusion Systems
Senior Process Engineer
$134K–$205K
Devens, MA · On-site · Senior · Full-time · Posted Sep 16, 2026
- Experience
- 7+ years of relevant industrial process engineering experience, or equivalent demonstrated depth of experience.
- Education
- Bachelor’s degree in Chemical Engineering or a closely related discipline.
- Visa sponsorship
- Employment offer contingent on compliance with U.S. Export Control Laws.
About the job
Owns process engineering for large-scale fusion power plant systems, from concept and design through construction, commissioning, start-up, operation, and troubleshooting.
What you'll do
- Develop process designs, balances, PFDs, P&IDs, equipment specifications, and process models; size and select equipment.
- Lead process safety and multidisciplinary engineering reviews, and support vendors, procurement, construction, commissioning, and start-up.
- Troubleshoot operating systems and provide technical leadership and mentoring.
What they ask for
- Bachelor’s degree in Chemical Engineering or a closely related discipline.
- 7+ years of relevant industrial process engineering experience, or equivalent demonstrated depth of experience.
- Experience designing and scaling process systems for large-scale industrial facilities, including structured FEL or equivalent project development.
- Hands-on experience with process deliverables, equipment sizing, commissioning, start-up, troubleshooting, process safety (including HAZOP or equivalent), and process simulation tools.
Nice to have
- Experience with large-scale cryogenic systems, particularly helium; power generation, petrochemical, LNG, industrial gases, chemical processing, nuclear, or similar facilities.
- Experience with steam, molten salt, vacuum, gas processing, process utilities, dynamic simulation, industrial automation, or Professional Engineer licensure.
Pay
USD 134,000–205,000 per-year-salary (base salary)
Tools
EcoSim, Aspen HYSYS, Aspen Plus, AVEVA Process Simulation, ASME B31.3, ASME BPVC Section VIII
Model-written summary · the original posting is authoritative