Quality Engineer - Nights & Weekend Shifts + Differential Pay

Commonwealth Fusion Systems; Harvard (MA); On-site; USD 90,000 - 145,000; Full time

Benefits offered by this job

Competitive equity compensation

Parental leave policy

Health, dental, and vision insurance

401(k) with employer matching

Professional growth opportunities

Job summary

Commonwealth Fusion Systems is seeking a Quality Engineer to manage the NCR workflow on the production floor, lead CAPA and 8D analyses, and drive quality improvements across HTS Magnet and SPARC assemblies.

You will collaborate with Manufacturing and Engineering to ensure process stability, collect defect data, and implement rigorous controls for first-of-a-kind hardware in a high‑impact environment.

Qualifications

• BS in Mechanical/Industrial/Material Science or Manufacturing Engineering is required or equivalent.
• Minimum 5 years of Engineering experience in manufacturing/assembly/equipment environment.
• 1-2 years of Quality Engineering experience required.
• Proficiency in ISO 9001-2015, Six Sigma, SPC, PFMEA, MSA, APQP.
• Excellent communication and organizational skills.
• GD&T and metrology knowledge essential.
• NDE methods including dye penetrant, ultrasonic, CT and x-ray knowledge.
• Knowledge of cryogenics.
• Proficiency with Minitab or JMP and MS Excel (VBA) and MS Visio.
• Experience with large metallic component assembly and CMM/Romer Arm.
• Experience with Welding and NDT.
• Experience with cryogenic plants and environments.

Responsibilities

• Take ownership of end-to-end NCR workflow; lead material disposition and 8D RCA to implement CAPA.
• Process Plan Execution: ensure Quality Plans and Process Plans are executed; support Control Plans.
• FOAK Quality Monitoring: monitor process health, defect trends, inspection results, and MSA.
• On-Shift Quality Execution: provide oversight for high-priority inspections off-shift.
• Refine manufacturing instructions and Process Plans; document quality-critical characteristics clearly.
• Support Supplier Quality with defect data and corrective actions as needed.

Skills

Quality Engineering

ISO 9001-2015

Six Sigma

SPC

MSA

PFMEA

APQP

GD&T

Metrology

Cryogenics

Education

BS in Mechanical/Industrial/Material Science/Manufacturing Eng

Tools

CMM/Romer Arm

Welding Process

Cryogenic Equipment

Dye Penetrant (NDE)

Ultrasonic Testing

X-ray/CT

Minitab

JMP

Excel VBA

Visio

Job description

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 Quality Engineer

Commonwealth Fusion Systems (CFS) is looking for dedicated and highly motivated off-shift Quality Engineers to oversee manufacturing process quality for our HTS Magnet production and the SPARC Project. In this high-impact, hands‑on role, you will take ownership of process stability and defect resolution on the production floor, ensuring our manufacturing processes yield reliable, first-of-a‑kind hardware. You will partner closely with Manufacturing and Engineering teams to monitor process health, lead root cause investigations, and manage the end-to-end Non‑Conformance Report (NCR) workflow. By implementing robust process controls and risk‑informed corrective actions, you will resolve complex fabrication challenges and directly enable the SPARC project mission.

What you’ll do:

• Take ownership of the end-to-end Non-Conformance Report (NCR) workflow on the production floor. Promptly identify deviations, lead material dispositioning, and conduct 8D Root Cause Analyses (RCA) to implement robust Corrective and Preventive Actions (CAPA)
• Process Plan Execution:
• Drive process stability by ensuring the successful execution of Quality Plans and detailed Process Plans for HTS Magnet manufacturing and SPARC assemblies. Support the development and maintenance of Control Plans where applicable
• First-of-a-Kind (FOAK) Quality Monitoring:
• Monitor process health and hardware quality for low-volume, complex production. Collect and analyze discrete manufacturing data, focusing on defect trending, inspection results, and Measurement System Analysis (MSA) to ensure reliable measurements without relying on high-volume statistical methods
• On-Shift Quality Execution:
• Provide technical oversight and leadership for high-priority quality inspections during the off‑shift. Execute established measurement and inspection methods to ensure all hardware strictly adheres to engineering requirements
• Partner closely with Manufacturing and Engineering teams to refine detailed manufacturing instructions and Process Plans. Ensure that quality‑critical characteristics are accurately documented, easily understood, and verifiable on the shop floor
• Supplier Quality Support:
• Support the supplier quality team by identifying and documenting supplier‑related defects discovered during internal production, assisting with root cause data collection and action plans as needed

What we’re looking for:

• BS in Mechanical, Industrial, Material Science or Manufacturing Engineering
• Minimum 5 years of Engineering experience in a manufacturing, assembly or equipment manufacturing environment
• 1-2 years of Quality Engineering experience
• ISO 9001-2015, Six Sigma, Statistical Process Control (SPC), Process Capability Analysis, PFMEA, Measurement System Analysis (MSA), APQP
• Excellent communication and organization skills
• GD&T and Metrology
• Knowledge of NDE (non‑destructive evaluation) methods including dye penetrant, ultrasonic, computerized tomography, and x‑ray
• Knowledge of cryogenics
• Minitab or JMP, MS Excel (including VBA), MS Visio
• Experience with assembly of large metallic components
• Experience with CMM or Romer Arm
• Experience with Welding Process and Nondestructive Testing
• Experience with cryogenic plants, systems, and environments

Must-have Requirements:

• Ability to occasionally lift up to 50 lbs
• Willingness to travel or work required nights/weekends/on‑call occasionally
• Perform activities such as stooping, climbing, typing, standing, or sitting for extended periods of time
• 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

$90,000 - $145,000 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.

• Competitive compensation with equity
• Generous parental leave policy
• Health, dental, and vision insurance
• 401(k) with employer matching
• Professional growth opportunities

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.