Senior Manufacturing Engineer - første hold

Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy.

Combining decades of research, top talent, and new technologies, we're designing and building commercially viable fusion power plants. And we're working with policymakers, suppliers, and many others to build the energy industry of the future.

We're in the best position to make it happen. Since 2018, we've raised $4 billion of capital, making us the largest and leading fusion company in the world.

Now we're looking for more thinkers, doers, builders, and makers to join us. People who'll bring new perspectives, solve tough problems, and thrive as part of a team.

If that's you and this role fits, we want to hear from you.

Join the power movement as a Senior Manufacturing Engineer

We are seeking a hands-on, 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. You will be the magnet owner, holding overall accountability for this shift. This role involves close collaboration with design engineers, production staff, quality assurance, and supply chain teams.

What you'll do

• Develop, implement, and qualify manufacturing processes for new products, ensuring they meet quality, cost, and production rate targets
• Lead the design and procurement of tools, fixtures, and equipment required for efficient production
• Provide hands-on manufacturing engineering support for first shift production operations
• Troubleshoot complex mechanical, electrical, and automated manufacturing assembly issues
• Maintain and update manufacturing documentation, including standard operating procedures (SOPs), work instructions, and operation sequencing
• Collaborate with cross-functional teams, including quality, safety, and production management, to address shift handoffs and non-conf
• Implement root cause corrective actions (RCCA) for quality non-conformances and process bottlenecks
• Lead process optimization projects to improve safety, yield, cycle time, and cost efficiency

What we're looking for

• Bachelor's Degree in Mechanical, Manufacturing, Aerospace, or Electrical Engineering, or related technical field (or
• 7+ years of experience in a manufacturing or production engineering role
• 7+ years of experience in a manufacturing engineering role supporting high-precision or complex hardware assembly
• Hands-on experience troubleshooting electro-mechanical equipment and tooling on the production floor
• Demonstrated experience with Root Cause Corrective Action (RCCA) frameworks and continuous improvement tools (Lean/Six Sigma)
• Ability to work in a fast-paced, team-oriented environment
• Strong knowledge of GD&T, CAD modeling (SolidWorks, NX), and drawing interpretation
• Excellent written and verbal communication skills across shift transfers

Bonus points for

• Experience with high-field superconducting magnets, vacuum systems, or cryogenic hardware
• Familiarity with MRP/ERP and MES software (e.g., SAP, Tulip, Solumina)
• Experience working a dedicated shift schedule in a fast-paced environment
• Proficiency with statistical process control (SPC) and DOE methodologies

Must-have requirements

• Ability to lift up to 50 lbs occasionally
• Perform activities such as typing, standing, stooping, and sitting, for extended periods of time
• Dedication to safety to mitigate hazards that may include heat, cold, noise, fumes, strong magnets, lead, high voltage, and cryogenics
• Willingness to occasionally travel or work required nights/weekends/on-call

$110,000 - $185,000 a year

Salary range for this full-time position + equity + benefits. The actual salary will depend on level, location, qualifications, and experience. The range displayed on each job posting reflects new hire salaries for the position across all US locations. Benefits include:

• 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

At CFS, we excel in fast-paced environments, driven by our values of integrity, execution, impact, and self-critique. As we grow, we're eager to bring on mission-driven folks who offer diverse perspectives and fresh ways to tackle challenges.

We value diversity deeply and are proud to be an equal opportunity employer by choice. We consider all qualified applicants equally, regardless of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law.

This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively, "Export Control Laws"). Any offer of employment will be contingent on the need for compliance with such Export Control Laws.