Lead Mechanical Engineering Manager — Fusion Vacuum Vessel

Commonwealth Fusion Systems; Harvard (MA); On-site; USD 180,000 - 260,000; Full time

Benefits offered by this job

Equity

Job summary

Commonwealth Fusion Systems is seeking a Senior Manager, Mechanical Engineering to lead the design and delivery of the ARC vacuum vessel. You will manage a team of engineers, drive CAD to procurement, and coordinate cross-system interfaces within the ARC plant to optimize overall performance.

The role requires a strong background in large metallic structures, Structural analysis, and fabrication processes, with the ability to lead in a dynamic R&D environment and travel as needed.

Qualifications

• Bachelor's degree in Mechanical Engineering or closely related field.
• 10+ years of mechanical engineering experience in multidisciplinary projects.
• Experience delivering large metallic structures and performing structural analysis.
• Background in fabrication of complex large structures and R&D settings.
• Knowledge of finite element analysis and fluid cooling of mechanical systems.
• Ability to adapt to rapidly changing environments and locations.
• Bonus points for high-temperature system design experience (600C / 1100F).
• Must be able to travel occasionally and work nights/weekends/on-call; safety-focused.

Responsibilities

• Lead a team of mechanical engineers to plan and deliver the ARC vacuum vessel and connected systems.
• Oversee the full design lifecycle from concept CAD modeling to procurement and assembly.
• Interface vacuum vessel design with other ARC plant systems, coordinating with multiple teams.
• Provide hands-on technical leadership to solve complex design challenges and manage risks.
• Collaborate with supply chain and materials teams to identify suppliers for the vacuum vessel.
• Proactively manage schedule and budget to deliver a critical fusion plant component.
• Manage all aspects of the group’s talent, including hiring, training, and performance expectations.
• Promote resilience and grit to ensure timely completion despite technical hurdles.

Skills

Mechanical design

Project leadership

Systems integration

Multi-disciplinary work

Structural analysis

Fabrication knowledge

R&D in dynamic env

Adaptability

Safety awareness

Education

Bachelor's Degree in Mechanical Engineering

Tools

Finite element analysis

CAD modeling

Fabrication processes

Job description

Commonwealth Fusion Systems is seeking a Senior Manager, Mechanical Engineering to lead the design and delivery of the ARC vacuum vessel. You will manage a team of engineers, drive CAD to procurement, and coordinate cross-system interfaces within the ARC plant to optimize overall performance.

The role requires a strong background in large metallic structures, Structural analysis, and fabrication processes, with the ability to lead in a dynamic R&D environment and travel as needed.