Assembly Test Implementation Engineer

Commonwealth-Fusion-Systems-5; Harvard (MA); On-site; USD 90,000 - 145,000; 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 is seeking an Assembly Test Implementation Engineer to oversee prep, execution, and closure of SPARC assembly test activities. You will transfer test methods into hands-on procedures, support planning, and review safety-aware test procedures with engineering and technician teams.

You will also collaborate on pre-test walks, develop test equipment and SPARC workflow proficiency, and ensure compliance with strict safety standards.

Qualifications

• BS in Engineering or related field
• 5 years of equivalent engineering experience
• Previous testing experience with hazards and high voltage
• Proficiency in MS Office, Bluebeam or Acrobat, and 3D modeling programs

Responsibilities

• Translate defined test methods into hands-on execution for SPARC assembly test activities
• Support planning by scouting field assets for test instruction or procedure planning
• Review and approve test procedures to identify risks for engineering and technician teams
• Collaborate with technicians for pre-test walkdowns to assess scope and hazards
• Develop proficiency with SPARC Assembly workflow management for tests
• Provide engineering direction to troubleshoot impediments in the field
• Adhere to safety policies and regulatory standards during field activities
• Ensure proper demobilization of field work and inventory
• Obtain formal test engineering approval for test reports
• Debrief test engineering with lessons learned to improve flow
• Occasional off-hours support for critical test activities

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.

If that’s you and this role fits, we want to hear from you.

Join the power movement as an Assembly Test Implementation Engineer

This position is overall responsible for the preparation, execution and closure phases of all related SPARC Assembly test activities.

What you’ll do:

• Transferrable knowledge / skillset to become adept / proficient in all defined specialized test methods from both an engineering and equipment operation perspective – specialized testing includes complexity or hazard introduction for design verification purposes (low voltage, high voltage, high stored energy, etc.)


• Support planning functions by scouting field assets for test instruction or procedure planning


• Review and approve test procedures / instructions to ensure understanding of scope and identify & mitigate potential risks within both the engineering and technician teams


• Collaborate with the technician team to execute a pre-test walkdown of unit or device under test, sensor, adjacent components, subsystems, systems or infrastructure to assess correct scope and hazard recognition when warranted


• Collaborate with the technician team to execute custom builds of test equipment / features & mock‑up testing for training / derisking purposes (pre-functional testing)


• Develop software proficiency with SPARC Assembly workflow management for all test activities


• Provide engineering direction when preparatory or execution impedances are encountered via simple or complex troubleshooting - decide between procedural intent and non-intent changes in the field


• Adhere to the highest standards of safety and ensure that activities taking place are being performed in strict accordance with CFS safety policies and applicable regulatory safety standards


• Ensure that activities being performed in the field are conducted in accordance with CFS Standards, standards published by regulatory bodies (NFPA, ASME, ASTM, NET, OSHA, NIOSH, etc.) and Industry Best Practices


• Reinforce test performance standards - pre-job briefs, procedural place keeping, procedural use and adherence, conservative bias, diligent monitoring of critical parameters, correct data capture, attention to detail, etc.


• Validate preliminary test outcomes - PASS, FAIL, UNCERTAIN with clear and succinct rationale / communication to integrated stakeholders


• Collaborate with technician team to ensure full demobilization in the field / proper stowage of all inventory items.


• Formal Test Engineering approval for all required test reports - signature authority


• Debrief the test engineering team on performance / procedure feedback to leverage lessons learned, prevent error recurrence and optimize flow for ease of technician execution when deemed prudent


• Occasional accommodation of off‑normal work hours to support critical test activities

What we’re looking for:

• BS in Engineering or related field


• 5 Years of equivalent engineering experience


• Previous testing experience with hazardsPrevious electrical testing experience (high voltage)


• High proficiency MS Office, Bluebeam or Acrobat, and 3D modeling programs

Bonus points for:

• OSHA 10


• NFPA 70E

Must-have Requirements:

• Ability to occasionally lift up to 50 lbs


• Perform activities such as typing, standing, stooping, climbing or sitting for extended periods of time


• Required onsite 5 days/week when assembly operations with relevant tools are underway, with possible alternating first or second shift assignment


• 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.

Benefits include:

• 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

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