Senior Fuel Cycle and Blanket Mechanical Engineer

Commonwealth Fusion Systems•Devens, MA
•Onsite

About The Position

Commonwealth Fusion Systems (CFS) is on a mission to deliver the urgent transition to fusion energy by designing and building commercially viable fusion power plants. The Fuel Cycle and Blanket Development Team is expanding to support R&D and pilot-scale molten salt (FLiBe) systems. This role involves driving the design and delivery of molten salt process equipment, including ASME tanks, heat exchangers, piping systems, and gas processing equipment. The engineer will collaborate with internal teams and external partners, emphasizing a culture of managing safety risk while carrying engineering risk appropriately.

Requirements

  • Bachelors degree in Chemical Engineering, Mechanical Engineering, or equivalent.
  • 8+ years of work experience.
  • Detailed knowledge of ASME BPVC and B31.3 and their use in designing process equipment and piping systems.
  • Design of industrial scale fixed equipment.
  • Design of higher temperature equipment and components.
  • Management of external partners and suppliers.
  • Design for hazardous fluid service.
  • Experience at a refinery, chemical plant, or heavy industrial facility preferred.
  • Familiarity with design/construction codes and standards such as ASME Section I, ASME Section VIII, ASME B31.3, API 510, API 570 AND API 579 preferred.
  • Familiarity with P&IDs, CAD, process flow diagrams, analysis such as heat and mass balances.
  • Strong commitment to designing for and working in a safety-prioritized environment.
  • Ability to learn new skills/subject matter quickly.
  • Ability to work effectively in a multidisciplinary team of engineers, scientists, technical staff and others.
  • Ability to clearly express and critique ideas.
  • Great communication and organizational skills.
  • Strong problem solving skills, ability to approach new problems with creativity.
  • Ability to occasionally lift up to 50 lbs.
  • Perform activities such as typing, standing or sitting for extended periods of time.
  • Willing to occasionally travel to suppliers and support commissioning/test activities.
  • Dedication to safety to mitigate industrial hazards that may include heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, high current, pressure systems, and cryogenics.
  • Must comply with U.S. laws concerning the export of controlled or protected technologies or information.

Nice To Haves

  • Experience with corrosive fluid systems.
  • Experience with rotating equipment design, procurement, installation, commissioning and reliability.
  • Experience with molten salt systems.
  • Experience with electro-chemical systems.
  • Analysis of pipe stress and support systems.
  • Analysis of vessel nozzle loads and stresses.
  • CAD software.

Responsibilities

  • Lead and contribute to the design of fluid process systems for testing at varying scales.
  • Develop specifications and designs of high-temperature molten salt process equipment, including vessels, tanks, valves, pumps and piping systems.
  • Act as the technical lead interfacing with suppliers and construction teams to procure, install and commission process equipment.
  • Support fixed equipment mechanical reliability at later project stages.
  • Support pipe stress evaluations working with piping stress engineers.
  • Collaborate across CFS teams to incorporate R&D learnings and interfacing system requirements into component designs and specifications.
  • Actively engage with suppliers, contractors and CFS teams to prioritize safety at all project stages.
  • Track projects and tasks against milestones and report progress up and across the organization.

Benefits

  • Competitive compensation with equity
  • 13 Company-wide Holidays
  • Flexible vacation days
  • 10 sick days
  • Generous parental leave policy
  • Health, dental, and vision insurance
  • 401(k) with employer matching
  • Professional growth opportunities
  • Team-building activities
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