Senior Fuel Cycle and Blanket Mechanical Engineer (Fusion Energy)

Location: Devens, Massachusetts, United States. On-site role with occasional travel to suppliers and support for commissioning and testing activities.

Salary: $110,000–$185,000 per year, plus equity and benefits.

Company

hirify.global Systems develops commercially viable fusion power plants and technologies for the transition to fusion energy.

What you will do

• Lead and contribute to fluid process system designs for testing at multiple scales.
• Develop specifications and designs for high-temperature molten salt equipment, including vessels, tanks, valves, pumps, heat exchangers, and piping systems.
• Serve as the technical lead for suppliers and construction teams during procurement, installation, and commissioning.
• Support fixed-equipment mechanical reliability, pipe stress evaluations, and component design improvements.
• Collaborate with engineering, scientific, technical, supplier, and construction teams to incorporate R&D learnings and system requirements.
• Track project milestones, report progress, and maintain a strong focus on industrial safety.

Requirements

• Bachelor’s degree in Chemical Engineering, Mechanical Engineering, or an equivalent field.
• 8+ years of professional experience designing industrial-scale fixed equipment and high-temperature components.
• Detailed knowledge of ASME BPVC and ASME B31.3 for process equipment and piping design.
• Experience with hazardous fluid service, external partner and supplier management, P&IDs, CAD, process flow diagrams, and heat and mass balance analysis.
• Ability to work effectively in multidisciplinary engineering teams and communicate, critique, and solve complex problems.
• Ability to occasionally lift up to 50 pounds, work around industrial hazards, and support on-site commissioning and testing.

Nice to have

• Experience in a refinery, chemical plant, or heavy industrial facility.
• Experience with corrosive fluid systems, molten salt systems, electrochemical systems, or rotating equipment.
• Familiarity with ASME Sections I and VIII, API 510, API 570, and API 579.
• Experience with pipe stress and support analysis or vessel nozzle load and stress analysis.

Culture & Benefits

• Safety-prioritized engineering environment with emphasis on integrity, execution, impact, and self-critique.
• Equity and competitive compensation.
• 13 company-wide holidays, flexible vacation days, and 10 sick days.
• Generous parental leave and health, dental, and vision insurance.
• 401(k) with employer matching, professional growth opportunities, and team-building activities.