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

Commonwealth Fusion Systems; Harvard (MA); On-site; USD 121,000 - 203,000; Full time

Benefits offered by this job

Competitive compensation with equity

Flexible vacation days

Health, dental, and vision insurance

401(k) with employer matching

Job summary

Commonwealth Fusion Systems is seeking a Manufacturing Engineer to improve productivity and efficiency in our production line. This role requires designing and optimizing manufacturing processes, collaborating closely with various teams, and implementing Lean and Six Sigma methodologies.

The ideal candidate should have a strong background in manufacturing engineering with at least 7 years of experience, as well as proficiency in CAD software and quality systems. The role offers a competitive salary and benefits package, aimed at fostering innovation.

Qualifications

• 7+ years of experience in a manufacturing or production engineering role.
• Strong knowledge of Lean Manufacturing, Six Sigma, and quality systems.
• Ability to balance autonomy with disciplined escalation.

Responsibilities

• Design, implement, and optimize manufacturing processes.
• Collaborate with design engineers and production staff.
• Lead the design and procurement of tools and fixtures.

Skills

Lean Manufacturing

Six Sigma

CAD software (NX, SolidWorks, AutoCAD)

Analytical skills

Problem-solving skills

Teamwork abilities

Education

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

Tools

Manufacturing 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. We’re working with policymakers and suppliers to build the energy industry of the future. Since 2018, we’ve raised nearly $3 billion in capital, making us the largest and leading private fusion company in the world.

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.

Schedule

Friday through Sunday, 6:00 am – 6:00 pm

Salary

$121,000 – 203,000 (includes 10% shift differential)

What you'll do

• Make real‑time decisions within established guardrails; escape conditions 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, or on‑call

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

Equal Opportunity Employment

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.

Export Control Laws

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.