Senior Manufacturing Engineer - Weekend First Shift (Fri, Sat, Sun)

Commonwealth Fusion Systems LLC; Harvard (MA); On-site; USD 134,000 - 205,000; Full time

Benefits offered by this job

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

Job summary

Commonwealth Fusion Systems LLC in Massachusetts seeks a Manufacturing Engineer to design, implement, and optimize production processes. You will own the shift’s performance and collaborate with design, quality, and supply chain teams.

You will apply Lean and Six Sigma to cut costs, improve efficiency, and ensure product quality, lead tooling and equipment procurement, and drive safety and continuous improvement initiatives.

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.
• 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.

Responsibilities

• Make real-time decisions within established guardrails; escape when conditions fall outside defined limits.
• 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.

Skills

Lean Manufacturing

Six Sigma

Quality systems

Leadership

Analytical skills

Communication

Teamwork

Education

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

Tools

NX

SolidWorks

AutoCAD

ERP systems

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.

Join the power movement as a 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.

The Schedule:

Shift: Friday through Sunday, 6:00 am - 6:00 pm

10% differential add to base pay

What you'll do:

• Make real-time decisions within established guardrails; escape when conditions fall outside defined limits
• 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:

• Knowledge of statistical process control (SPC) and failure modes and effects analysis (FMEA)

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

#LI-Onsite

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.

134000 - 205000 USD a year

• 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