Manufacturing Engineer - Third Shift

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 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.

What you'll do:

Provide hands-on manufacturing engineering support for production operations across the line, including fabrication, welding, inspection, instrumentation, and cryogenic testing

Troubleshoot process, equipment, and quality issues, and decide when to hold or stop work to protect product and people

Verify and buy off work station setups against the process plan, including hardware configuration, tooling, and torque sequences

Disposition nonconformances and lead root cause and corrective action (RCCA) investigations

Own work instruction and process plan accuracy in the manufacturing execution system (MES): redline steps, resolve blocked operations, and capture lessons from the floor so knowledge lives in controlled documents

Coordinate with NDT, welders, technicians, controls, equipment, analysis, and quality teams to resolve issues quickly and safely

Support changes in product configurations, including updated process plans, tooling, and work instructions

Collaborate with the other third shift engineers to share coverage, align on decisions, and keep work moving

Maintain clear shift handoffs and documentation so work continues smoothly across all three shifts

Train and support production technicians on work instructions, processes, equipment, and best practices

Drive continuous improvement in throughput, turnaround time, and first-pass quality

Ensure compliance with safety regulations, company policies, and industry standards

What we're looking for:

Bachelor's degree in Mechanical Engineering, Manufacturing Engineering, Electrical Engineering, or a related field, or equivalent work experience

5+ years of experience in a manufacturing or production engineering role, ideally supporting complex hardware, test stands, or quality-critical production

Ability to read engineering drawings and technical documentation, including GD&T

Sound judgment on third shift: confident making real-time engineering decisions within established guardrails, and knowing when to stop work and escalate

Excellent written and verbal communication, including clear shift handoffs and documentation

Experience with root cause analysis and corrective action processes (RCCA, 8D, or similar) and nonconformance management

Experience with a manufacturing execution system (MES) or electronic work instructions and work ordersHands-on troubleshooting skills for electro-mechanical equipment, instrumentation, and data acquisition or controls systems

Ability to work in a fast-paced, team-oriented environment, including coordinating with fellow engineers on shift, and manage multiple priorities

Root cause analysis and nonconformance management

MES and work instruction use

Equipment and instrumentation troubleshooting

Reading engineering drawings and GD&T

Clear written and verbal communication

Bonus points for:

Experience with superconducting magnets, HTS tape or cable, or cryogenic hardware

Experience with welding processes (laser or TIG) and weld inspection methods (VT, RT, UT), or NDT certification

Experience running or supporting a cryogenic test stand, or high-current or high-voltage test equipment

Experience with instrumentation such as voltage taps, cryogenic temperature sensors, or fiber optic sensing, and with data acquisition and time-series tools

Experience with Manufacturo, Odoo, Jira, or similar MES, quality, and ticketing systems

Experience with NX or similar CAD software

Proficiency in work instruction writing, process mapping, and capacity modeling

Familiarity with Python or similar tools for reviewing test data

High self-motivation and drive to execute quickly with excellent troubleshooting and problem-solving skills

Welding and NDT (VT, RT, UT)

Cryogenic and high-current test experience

Instrumentation and data acquisition tools

Python

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

Required safety training (lockout/tagout, cryogenic safety, laser and radiation area awareness); lifting is mostly crane-assisted per lift plan

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.