Senior Mechanical Commissioning Test Engineer
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Job Location:
Devens, MA - USA
Monthly Salary:
Not Disclosed
Posted on:
23-10-2025
Vacancies:
1 Vacancy
Job Summary
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 were designing and building commercially viable fusion power plants. And working with policymakers and suppliers to build the energy industry of the future.
Were in the best position to make it happen. Since 2018 weve raised nearly $3 billion in capital making us the largest and leading private fusion company in the world.
Now were looking for more thinkers doers builders and makers to join us. People wholl bring new perspectives solve tough problems and thrive as part of a team.
If thats you and this role fits we want to hear from you.
Join the power movement as a Senior Mechanical Commissioning Test Engineer
The Senior Mechanical Commissioning Test Engineer is responsible for the initiation development revision and execution support of the Mechanical Test procedure development process associated with the SPARC Assembly project initiative.
What youll do:
- Execute long term complex testing procedures performed in the field encompassing multiple disciplines and several stages based on project maturity and progress - mechanical test focus involving (but not limited to) code driven or guided leak and pressure testing initiatives including mass spectrometry leak detection methods
- Collaborate with CFS Engineering groups to develop SPARC Assembly (SASY) in-situ test procedures
- Serve as an test implementation expert for testing of assigned disciplines or tasks provide guidance and instruction to cross functional groups within CFS
- Identify potential issues pro-actively during the test planning and procedure development phase to ensure proper risk management and quality assurance of test results in a fast-paced environment
- Provide in-field support during high risk test evolutions or simple / complex troubleshooting (leak testing pressure testing etc.)
- Collaborate with internal teams / external vendors for test feature custom design & fabrication
- Ensure that activities being performed in the field are being conducted in accordance with CFS Standards and regulatory standards (NEC NFPA ASME ASTM OSHA etc.) or best industry practices
- Adhere to the highest standards of safety and ensure that activities taking place under her or his oversight are being performed in strict accordance with CFS safety policies and applicable regulatory safety standards
- Collaborate with CFS EHSS and CFS engineering teams to proactively identify risks and align mitigation requirements for all activities. Participate in Risk Assessment activities and Root Cause Analysis as necessary
What were looking for:
- BS in Engineering or related field
- 10 Years Commissioning (similar and cross functional experience in operations or maintenance is acceptable)
- High proficiency Google documents BlueBeam or Acrobat and 3D modeling programs
Bonus points for:
- Mechanical testing or commissioning experience
- OSHA 10
- NFPA 70E
Must-have requirements:
- Ability to occasionally lift up to 50 lbs
- 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
- Willingness to occasionally travel to witness FAT at vendor locations worldwide. May work second/third shifts and/or weekends as dictated by project needs
$110000 - $185000 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
12.5 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
#LI-Onsite
At CFS we excel in fast-paced environments driven by our values of integrity execution impact and self-critique. As we grow were 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.
Required Experience:
Senior IC
Key Skills
- Anti Money Laundering
- Internship
- Consultancy
- Information Technology Sales
- Accident Investigation
- ASP
