1

Weekend Backend Engineer Jobs in Worcester, MA (NOW HIRING)

Diagnostician

Devens, MA · On-site

$110K - $185K/yr

CFS is looking to grow the SPARC team in order to complete back-end design and move diagnostics ... Bachelor's degree in a relevant engineering field (mechanical, aerospace, civil or nuclear)

Diagnostician

Devens, MA

$110K - $185K/yr

CFS is looking to grow the SPARC team in order to complete back-end design and move diagnostics ... Bachelor's degree in a relevant engineering field (mechanical, aerospace, civil or nuclear)

We achieve this through deep vertical integration, with design, engineering, and production ... Provide backend (i.e., non-customer-facing) operational support to ensure completion of order ...

We achieve this through deep vertical integration, with design, engineering, and production ... Provide backend (i.e., non-customer-facing) operational support to ensure completion of order ...

Diagnostician

Devens, MA

$110K - $185K/yr

CFS is looking to grow the SPARC team in order to complete back-end design and move diagnostics ... Bachelor's degree in a relevant engineering field (mechanical, aerospace, civil or nuclear)

Weekend Backend Engineer information

See Worcester, MA salary details

$60.4K

$147.3K

$198.6K

How much do weekend backend engineer jobs pay per year?

As of Jul 20, 2026, the average yearly pay for weekend backend engineer in Worcester, MA is $147,340.00, according to ZipRecruiter salary data. Most workers in this role earn between $123,700.00 and $171,600.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Weekend Backend Engineer, and why are they important?

To thrive as a Weekend Backend Engineer, you need strong programming skills (often in languages like Python, Java, or Node.js), a solid understanding of server-side frameworks, and experience with databases, typically supported by a degree in computer science or equivalent experience. Familiarity with tools such as RESTful APIs, cloud platforms (like AWS or Azure), and version control systems (e.g., Git) is essential. Excellent problem-solving, time management, and communication skills are crucial for working independently and collaborating with remote teams during off-peak hours. These skills ensure reliable system performance, quick issue resolution, and seamless integration with other services, all vital for supporting business operations outside regular hours.

What are the typical work expectations and team dynamics for a Weekend Backend Engineer?

As a Weekend Backend Engineer, you’ll often be responsible for maintaining system stability, addressing urgent issues, and implementing updates outside of standard business hours. You’ll typically work independently, but you’ll also collaborate with on-call engineers, DevOps teams, and sometimes customer support to resolve incidents quickly. Communication is key, as you may need to document your work clearly for weekday teams to ensure smooth handovers. This role can offer valuable experience in incident response and system reliability, which are highly regarded skills for backend professionals.

What are Weekend Backend Engineers?

Weekend Backend Engineers are software developers who specialize in building and maintaining the server-side components of web or mobile applications, and specifically work during weekends. Their responsibilities typically include managing databases, developing APIs, optimizing application performance, and ensuring the backend infrastructure is robust and scalable. Weekend Backend Engineers are often employed to provide continuous support, handle emergency fixes, or accelerate project timelines during non-standard business hours.
What are the most commonly searched types of Backend Engineer jobs in Worcester, MA? The most popular types of Backend Engineer jobs in Worcester, MA are:
What job categories do people searching Weekend Backend Engineer jobs in Worcester, MA look for? The top searched job categories for Weekend Backend Engineer jobs in Worcester, MA are:
Diagnostician

$110K - $185K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 13 hours ago


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 and suppliers to build the energy industry of the future.
We're in the best position to make it happen. Since 2018, we've raised nearly $3 billion in capital, making us the largest and leading private 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 Diagnostician
Commonwealth Fusion Systems is assembling the high-field SPARC tokamak, which aims to be the first magnetic fusion device to achieve net fusion energy, and is predicted to be able to achieve high gain and fusion power up to 140MW. We are completing the design and beginning the assembly and installation of diagnostic systems that will be used to control the plasma and deliver the scientific data necessary to complete the design of ARC. These include approximately 40 sub-systems covering magnetics, interferometry, neutral pressure, x-ray to visible spectroscopy, camera imaging, bolometry, neutrons, Thomson scattering, electron cyclotron emission, reflectometry, Langmuir probes and structural temperature and strain sensing. A more detailed overview can be found at: https://pubs.aip.org/aip/rsi/article/95/10/103518/3317155.
CFS is looking to grow the SPARC team in order to complete back-end design and move diagnostics through fabrication, assembly, commissioning and utilization. Presently the diagnostics team has enough expertise to support all major diagnostic systems, but we are looking to add a generalist who has experience in multiple diagnostics to ensure our team can deliver measurements on SPARC's fast timeline. Candidates will work as part of an integrated diagnostic team along with MIT-PSFC partners and fusion community collaborators from around the world to demonstrate net energy from a tokamak for the first time. CFS encourages applications from both senior and early career fusion scientists and those interested in cross-industry career changers to help us build a diverse team to meet our mission goals.
What you'll do:
  • Shepherd SPARC diagnostic sub-systems through final design, working with a team of scientists, designers, analysts and engineers
  • Integrate technical input from experts in the SPARC team to ensure diagnostic designs will be usable to achieve SPARC's mission goals
  • Develop the diagnostic's assembly, installation, calibration and commissioning plans to ensure SPARC is able to achieve first plasma on-schedule
  • Integrate the diagnostic into the plant-level and real-time plasma control systems
  • Participate in the testing and operation of diagnostic systems that balances learning how to operate SPARC with obtaining physics results as quickly as possible
  • Contribute to a strong safety culture
  • Collaborate with CFS designers and analysts as well as provide feedback to academic partners providing input to SPARC diagnostic designs

What we're looking for:
  • Bachelor's degree in a relevant engineering field (mechanical, aerospace, civil or nuclear)
  • Participated in the design of a new or upgraded scientific instrument of the scale and complexity of those used in magnetically confined fusion
  • Demonstrated examples of using scientific instruments to support an operational and/or research mission
  • Developed software using Python, Matlab, C++ or equivalent for analysis of experimental data and automation of lab equipment
  • Relevant hands-on knowledge/skills specific to diagnostic systems listed in summary (e.g. vacuum systems, lasers, calibration sources, etc.)
  • Ability to understand concepts and tradeoffs that bridge engineering and physics

Bonus points for:
  • Participated in the design and implementation of a plasma diagnostic for a magnetically confined fusion experiment at University-scale or above

Must-have requirements:
  • Ability to occasionally lift up to 50 lbs
  • Perform activities such as climbing, typing, standing, or sitting for extended periods of time
  • Willingness to travel or work required nights/weekends/on-call occasionally
  • 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

$110,000 - $185,000 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
#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.