SENIOR MFG ENGINEER,(3RD) $126K-$212K

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 are designing and building commercially viable fusion power plants.

About the role

We are seeking a hands-on, detail-oriented, and results-driven Senior Manufacturing Engineer to own third-shift manufacturing activities. You will be the magnet owner for the shift, accountable for process performance, quality, and production output. This role partners closely with design, production, quality, and supply chain to design, implement, and optimize manufacturing processes.

Schedule

Shift: Monday through Friday, 10:00 pm - 6:30 am

Responsibilities

• Make real-time decisions within established guardrails and escalate when conditions fall outside defined limits
• Analyze and improve manufacturing processes to reduce cost, increase efficiency, and ensure product quality
• Develop and maintain process documentation including work instructions, 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 design and procurement of tools, fixtures, and equipment for efficient production
• Troubleshoot equipment and process issues and implement corrective actions
• Conduct time and motion studies to optimize production methods and labor utilization
• Support continuous improvement initiatives and roll out 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

Requirements

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

Preferred Qualifications

• Experience with statistical process control (SPC) and failure modes and effects analysis (FMEA)

Physical Demands

• Ability to occasionally lift up to 50 lbs
• Ability to type, stand, stoop, and sit for extended periods
• Dedication to safety working around hazards that may include heat, cold, noise, fumes, strong magnets, lead, high voltage, and cryogenics
• Willingness to occasionally travel or work required nights, weekends, or be on-call

Pay

Salary range: \$126,000-\$212,000/year (includes 15% shift differential) + equity + benefits. Actual salary depends on level, location, qualifications, and experience.

Benefits

• Competitive compensation with equity
• 13 company-wide holidays, flexible vacation days, 10 sick days
• Generous parental leave, health/dental/vision insurance, 401(k) with employer matching
• Professional growth opportunities and team-building activities