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