Mechanical Engineer

Commonwealth Fusion Systems•Devens, MA
•$107,000 - $160,000•Onsite

About The Position

Commonwealth Fusion Systems is seeking a Mechanical Engineer to join its manufacturing team. The role provides technical expertise during commissioning, implementation, and integration of manufacturing equipment, working with production teams to optimize processes for efficiency, quality, and safety. The position also involves supporting Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT), and requires coverage or partial coverage for the second shift.

Requirements

  • Bachelor's degree in Mechanical Engineering or a related field.
  • At least 5 years of mechanical engineering experience, focused on manufacturing equipment.
  • At least 3 years of manufacturing equipment and tooling design experience.
  • Strong knowledge of mechanical systems, including hydraulics, pneumatics, and motion control.
  • Experience with 3D CAD packages and 2D drawings.
  • Experience with Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) of equipment.
  • Understanding of Geometric Dimensioning and Tolerancing (GD&T) and its application.
  • Excellent problem-solving and analytical skills.
  • Strong communication and interpersonal skills, with the ability to collaborate effectively with cross-functional teams.
  • Experience commissioning and starting up manufacturing equipment.
  • Ability to lift up to 50 lbs occasionally.
  • Ability to type, stand, stoop, and sit for extended periods.
  • Willingness to occasionally travel or work required nights, weekends, or on-call.
  • Dedication to safety when working around potential hazards, including heat, cold, noise, fumes, strong magnets, lead, high voltage, and cryogenics.

Nice To Haves

  • Experience with production ramp-up and optimization of manufacturing processes.
  • Experience with automated equipment and robotics.

Responsibilities

  • Provide technical expertise during the commissioning, implementation, and integration of manufacturing equipment.
  • Support Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) of equipment.
  • Troubleshoot mechanical issues and develop solutions to ensure equipment operates efficiently.
  • Collaborate with production and engineering teams to optimize manufacturing processes and improve equipment performance.
  • Drive continuous improvement initiatives to increase efficiency, reduce downtime, and improve quality.
  • Conduct root cause analysis and implement corrective actions to resolve manufacturing issues.
  • Ensure compliance with safety requirements.
  • Create and maintain Process and Instrumentation Diagrams (P&IDs).
  • Work with external vendors and suppliers to support timely delivery of equipment and materials.
  • Conceptualize and detail new manufacturing equipment for scaled-up manufacturing processes.
  • Run experiments to assess the feasibility of new manufacturing processes and translate findings into practical designs.

Benefits

  • Equity
  • 13 company-wide holidays
  • Flexible vacation days
  • 10 sick days
  • Generous parental leave policy
  • Health insurance
  • Dental insurance
  • Vision insurance
  • 401(k) with employer matching
  • Professional growth opportunities
  • Team-building activities
© 2026 Teal Labs, Inc
Privacy PolicyTerms of Service