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Salary
$134k – $205k per year
Location
In office (Devens)
Seniority
Senior · 7+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 5, 2026. First seen by Alion on Nov 2, 2026. Commonwealth Fusion Systems scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Commonwealth Fusion Systems is a commercial fusion energy company headquartered in Devens, Massachusetts, and founded in 2018. The firm specializes in the development of high-temperature superconducting magnets and compact tokamak devices, specifically the SPARC net-energy machine and the ARC commercial power plant. It operates through a strategic partnership with the Massachusetts Institute of Technology and focuses on scaling fusion technology to provide carbon-free, baseload power to global energy markets.

Join the power movement as a Senior Manufacturing Engineer - Assembly

We are seeking a detail-oriented, innovative, and results-driven Manufacturing Engineer to join our team. The successful candidate will be responsible for designing, implementing, and optimizing manufacturing processes to improve productivity, efficiency, and quality across the production line. This role involves close collaboration with design engineers, production staff, quality assurance, and supply chain teams.

The Schedule:

Shift: Monday through Friday, 1:00 - 10:00 PM

10% differential add to base pay

What you'll do:

  • Develop and implement new manufacturing lines within a high-mix, low volume environment
  • Analyze and improve manufacturing processes to reduce costs, increase efficiency, and ensure product quality
  • Develop and maintain process documentation including work instructions, standard operating procedures (SOPs), and process flow diagrams
  • Collaborate with product design and development teams to ensure manufacturability of new products
  • Implement Lean Manufacturing and Six Sigma methodologies to enhance production performance
  • Lead the design and procurement of tools, fixtures, and equipment required for efficient production
  • Troubleshoot equipment and process issues and implement corrective actions
  • Conduct time and motion studies to determine optimal production methods and labor utilization
  • Support continuous improvement initiatives and implement best practices across the facility
  • Ensure compliance with safety regulations, company policies, and industry standards
  • Evaluate new technologies and automation solutions to enhance manufacturing capabilities

What we're looking for:

  • Bachelor’s degree in Manufacturing Engineering, Mechanical Engineering, Industrial Engineering, or related field
  • 7+ years of experience in a manufacturing or production engineering role
  • Strong knowledge of Lean Manufacturing, Six Sigma, and quality systems
  • Proficient in CAD software (NX, SolidWorks, AutoCAD, etc.) and manufacturing ERP systems
  • Ability to balance autonomy with disciplined escalation
  • Leadership through hands-on engagement
  • Excellent analytical and problem-solving skills
  • Strong communication and teamwork abilities
  • Ability to work in a fast-paced, team-oriented environment

Bonus points for:

    • Experience with clean lines
    • Knowledge of statistical process control (SPC) and failure modes and effects analysis (FMEA)

Must-have requirements:

  • Ability to occasionally lift up to 50 lbs
  • Work in a facility that contains industrial hazards including heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, high current, pressure systems, and cryogenics
  • Perform activities such as typing, standing, or sitting for extended periods of time
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