Senior Manufacturing Engineer - Assembly

Fusion Energy Base; Harvard (MA); On-site; USD 110,000 - 185,000; Full time

Benefits offered by this job

Equity

Health, dental, and vision insurance

13 company-wide holidays

Flexible vacation days

Sick days

Parental leave policy

401(k) with employer matching

Job summary

Commonwealth Fusion Systems is seeking a Senior Manufacturing Engineer - Assembly to design, implement, and optimize manufacturing lines in a high-mix, low-volume environment. You will drive process improvements, collaborate with design, QA, and supply chain, and lead tools and equipment upgrades for efficient production.

You will apply Lean Manufacturing and Six Sigma, maintain SOPs, and ensure quality and safety across the facility while leveraging CAD tools and ERP systems to enable scalable

Qualifications

• Bachelor's degree in Manufacturing Engineering, Mechanical Engineering, Industrial Engineering, or related field.
• 7+ years of experience in a manufacturing or production engineering role with Lean/Six Sigma focus.
• Proficiency in CAD software (NX, SolidWorks, AutoCAD, etc.) and manufacturing ERP systems.

Responsibilities

• 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 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 for 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 best practices across the facility.
• Ensure safety compliance and adherence to policies and industry standards.
• Evaluate new technologies and automation solutions to enhance capabilities.

Skills

Lean Manufacturing

Six Sigma

Quality systems

Leadership

Analytical skills

Communication

Teamwork

Education

Bachelor's degree in Manufacturing/Mechanical/Industrial Eng

Tools

NX CAD

SolidWorks

AutoCAD

ERP systems

Job description

Senior Manufacturing Engineer - AssemblyDevens, MASPARC Tokamak Team – Assembly /Full-time /On-site

About Commonwealth Fusion Systems: 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 - 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.

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

Salary

$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

• 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

Company values

#CFS-NEAt 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.

EEO statement

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