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Senior Data and Operations Software Engineer
Job Location:
Job Location:
Devens, MA - USA
Yearly Salary:
$ 140000 - 200000
Yearly Salary:
Posted:
22 August 2026 (Yesterday)
Posted:
Application Deadline:
19 November 2026
Application Deadline:
Vacancies:
1 Vacancy
Vacancies:
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 were working with policymakers suppliers and many others to build the energy industry of the future.
Were in the best position to make it happen. Since 2018 weve raised $4 billion of capital making us the largest and leading 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 Data and Operations Software Engineer
The Software Engineering team is seeking an experienced and motivated backend software engineer to become a member of the Data and Operations Software group. The group is responsible for the companys data services and as a backend software engineer you will play a crucial role in developing the APIs and distributed systems that facilitate data acquisition access and processing capabilities within the company. You will work closely with physicists and other software engineers to create robust and high-performance data systems tailored to the unique needs of our groundbreaking work in the field of fusion energy.
What youll do:
- Develop the distributed systems and services that provide data acquisition access and processing capabilities within the company
- Write clean maintainable and efficient code in Golang
- Write a user-friendly Python client library
- Collaborate with physicists diagnosticians and other engineers to gather user stories and translate the resulting requirements into code
- Optimize backend performance to improve data ingestion retrieval and processing times
- Help make fusion energy a reality by making it possible to collect retrieve and analyze data from simulations and experiments
What were looking for:
- Bachelors degree in a relevant engineering field (computer science computer engineering electrical engineering industrial engineering etc.)
- 7 years relevant experience
- Proven experience as a backend software engineer working on distributed systems and REST APIs
- Strong problem-solving skills and attention to detail
- Excellent communication and teamwork skills
- Ability to work in a fast-paced collaborative and innovative environment
- Proficiency with python
- Proficiency with Golang or similar language that is suitable for web services
- Familiarity with Linux and development tools such as Git GitHub and Docker
Bonus points for:
- Experience in developing software for mission-critical applications
- Experience with real-time data collection and visualization
- Experience with very large volume data collection
- Some familiarity with front-end frameworks such as React
Must-have Requirements:
- Perform activities such as typing standing sitting etc. for extended periods of time
- Dedication to safety to mitigate industrial hazards that may include heat cold noise fumes strong magnets lead (Pb) high voltage high current pressure systems and cryogenics
- Willingness to occasionally travel or work required nights/weekends/on-call
$140000 - $200000 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
#LI-Hybrid
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
