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Cold Fusion Developer Jobs in Massachusetts (NOW HIRING)

Commonwealth Fusion Systems

Senior Controls Engineer

Devens, MA · On-site

$110K - $185K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy ... Dedication to safety to mitigate hazards that may include heat, cold, noise, fumes, strong magnets ...

Commonwealth Fusion Systems

Senior Mechanical Engineer

Devens, MA · On-site

$110K - $185K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy ... cold, noise, fumes, strong magnets, lead, high voltage, and cryogenics $110,000 - $185,000 a year ...

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How much do cold fusion developer jobs pay per hour?

As of Aug 16, 2026, the average hourly pay for cold fusion developer in Massachusetts is $58.55, according to ZipRecruiter salary data. Most workers in this role earn between $49.90 and $66.44 per hour, depending on experience, location, and employer.

What is a Cold Fusion developer?

A Cold Fusion Developer is a software professional who specializes in building and maintaining web applications using Adobe ColdFusion, a rapid web application development platform. Their responsibilities include writing and optimizing CFML (ColdFusion Markup Language) code, integrating databases, troubleshooting application issues, and ensuring the security and performance of web applications. Cold Fusion Developers often work with other web technologies like HTML, JavaScript, and SQL. They may be involved in both front-end and back-end development tasks. This role is commonly found in organizations that have legacy ColdFusion systems or need rapid prototyping for web applications.

What are some common challenges Cold Fusion developers face when maintaining legacy applications?

Cold Fusion Developers often encounter challenges such as outdated codebases, limited documentation, and integrating newer technologies with older Cold Fusion applications. Maintaining legacy systems can require troubleshooting compatibility issues and refactoring code to improve performance or security. Collaborating closely with stakeholders and other developers is essential to ensure smooth updates and minimal disruptions. Continuous learning and adaptability are key, as developers may need to transition parts of the application to modern frameworks over time.

What are the key skills and qualifications needed to thrive as a Cold Fusion developer, and why are they important?

To thrive as a Cold Fusion Developer, you need strong skills in ColdFusion programming, web application development, and a background in computer science or a related field. Familiarity with databases like MySQL or SQL Server, source control systems such as Git, and experience with CFML frameworks like ColdBox are typically required. Attention to detail, problem-solving ability, and effective communication help developers deliver robust, maintainable code and work well with clients and teams. These skills are essential for building secure, scalable, and efficient web applications that meet business requirements.

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What job categories do people searching Cold Fusion Developer jobs in Massachusetts look for?

The top searched job categories for Cold Fusion Developer jobs in Massachusetts are:

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Cold Fusion Developer jobs near you
Infographic showing various Cold Fusion Developer job openings in Massachusetts as of August 2026, with employment types broken down into 85% Full Time, 13% Part Time, 1% Contract, and 1% Nights. Highlights an 94% Physical, 1% Hybrid, and 5% Remote job distribution, with an average salary of $121,780 per year, or $58.5 per hour.

Senior Control Software Engineer

Commonwealth Fusion Systems

Devens, MA • On-site

$140K - $200K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 7 days 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 Senior Control Software Engineer
As a Control Software Engineer, you will be responsible for the design, implementation, and verification of software and controls for advanced R&D equipment and complex machinery.
As a member of the Software Engineering team you will be a hands-on technical contributor, a champion of writing excellent quality, production-ready code for mission-critical real-time systems. You will collect functional requirements from customers and produce software solutions to meet these requirements.
You will work with a variety of engineers to integrate your software into software testbeds, hardware testbeds, and the production tools. You will also contribute to the broader software ecosystem to improve tooling and processes used across the company.
What you'll do:
  • Develop control software across multiple platforms, including PLCs and real-time Linux
  • Develop operator interfaces and workflows
  • Improve software tooling to increase developer velocity and enable new capabilities

What we're looking for:
  • Bachelor's degree in a relevant engineering field (computer science, computer engineering, electrical engineering, industrial engineering, etc.)
  • Several years of experience with industrial control systems and/or embedded control systems
  • Several years of experience in producing production quality control software
  • Working knowledge of modern software development lifecycle practices (CI/CD, git version control, unit testing, integration testing, etc)
  • Proficiency with python
  • Proficiency with at least one real-time control language (c++, SCL/ST, rust, etc)

Bonus points for:
  • Familiarity with industrial control platforms (e.g. Beckhoff TwinCat)
  • Familiarity with Linux
  • Experience with industrial protocols (e.g. EtherCat, Profinet, Modbus, etc)
  • Familiarity with general networking (IP/UDP)

Must-have Requirements:
  • Ability to occasionally lift up to 50 lbs
  • Perform activities such as stooping, climbing, 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

$140,000 - $200,000 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.

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