Senior Manufacturing Engineer - Assembly

Lever, Inc.; Harvard (MA); On-site; USD 110,000 - 185,000; Full time

Benefits offered by this job

Equity

13 Company-wide Holidays

Flexible vacation

10 sick days

Parental leave

Health, dental, and vision insurance

401(k) with employer matching

Professional growth opportunities

Team-building activities

Job summary

Commonwealth Fusion Systems seeks a Senior Manufacturing Engineer - Assembly to design, implement, and optimize manufacturing processes across a high-mix, low-volume production line. You'll collaborate with design engineers, production staff, QA, and supply chain to improve productivity, efficiency, and quality.

The role requires a Bachelor’s in engineering, 7+ years in manufacturing, and expertise in Lean, Six Sigma, CAD, and ERP systems.

Qualifications

• Bachelor's degree in Manufacturing/Mechanical/Industrial Engineering or related field.
• 7+ years in manufacturing or production engineering.
• Strong knowledge of Lean Manufacturing, Six Sigma, and quality systems.
• Proficient in CAD and 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 determine optimal production methods and labor utilization.
• Support continuous improvement initiatives and best practices across the facility.
• Ensure compliance with safety regulations and company policies.

Skills

Lean Manufacturing

Six Sigma

CAD software

ERP systems

Leadership

Analytical thinking

Communication skills

Teamwork

Education

Bachelor's degree in Manufacturing/Mechanical/Industrial Engineering or related field

Tools

NX

SolidWorks

AutoCAD

Job description

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

$110,000 - $185,000 a year

Salary range for this full-time position + equity + 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

#LI-Onsite

#CFS-NE

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.