Acceleron Fusion, Inc.

Fusion Fuel Cycle Process Engineer

LocationCambridge, MA
Job Typefull_time

About This Job

About Acceleron Fusion Acceleron Fusion is pioneering muon‑catalyzed fusion—a path to clean, abundant energy. Building on research sponsored by the U.S. DOE, we have recently raised a $24M Series A venture capital round. We have already logged 100+ hours of muon-catalyzed fusion in tests at the Paul Scherrer Institute. Our collaborators include PSI, Oak Ridge, Argonne, Fermilab, and top universities. Join a team where fundamental physics meets application-oriented engineering, and your designs could power the leap from laboratory breakthrough to world‑changing energy source.

About This Role

We’re looking for an innovative, collaborative Process Engineer with a background in ultra-pure gases to design and implement the fuel handling systems for our muon-catalyzed fusion research apparatus. The role focuses on developing the ultra-high vacuum and gas handling systems needed to manage deuterium-tritium fusion fuel and other process gases. The majority of our engineering and development work occurs at our facility in Cambridge, MA. You will also travel with the team for several weeks out of the year to help integrate and test systems at our partner facilities in Switzerland, Vancouver, and New York.

What You’ll Do

Design piping systems to handle ultrapure gases, including deuterium-tritium fusion fuel.

Select and integrate instrumentation to measure the chemical and isotopic composition of fusion fuel and fusion breeding blanket materials.
Design, build, and test ultra-high vacuum systems.
Help build multiphysics models incorporating electromagnetics, heat transfer, fluid flow, particle transport, and chemical kinetics.
Build prototypes and conduct lab tests.
Generate clear design docs, test plans, and risk analyses that unlock rapid iteration and safe operations.
Travel with the team (including international travel) to integrate your hardware at beamline facilities and carry out experiments.
Run experiments and collect data.


What We’re Looking For

B.S., M.S., or Ph.D. in Chemistry, Physics, Chemical Engineering, or a related field.
Five years experience designing and working with ultra-high vacuum systems or process piping for ultra-pure gases.
Experience with mass spectrometry, gas chromatography, or other analytical techniques for ultrapure gases.
Hands‑on lab experience: cutting and joining piping, vacuum practice, lab instrumentation, basic electronics, and practical troubleshooting.
Proficiency with CAD and simulation tools.
Thoughtful collaboration skills, able to interact and work closely with people from other technical disciplines and backgrounds.
Demonstrated time management and organizational skills.
Excellent written and verbal communication abilities.


Preferred Qualifications: (not required)

Experience with particle accelerators, charged particle optics, or cryogenics.
Experience designing equipment to handle tritium gas.


Details & Logistics

This is a full-time, onsite role, working from our facility in Cambridge, MA.
Travel (including international) for several weeks per year is required.
Our benefits package includes health & dental insurance, retirement savings with company contribution, stock options, paid time off, and 11 company holidays.
The salary range for this role is $100,000 to $140,000. This range represents the minimum and maximum base compensation Acceleron Fusion reasonably expects to pay for this position. The specific salary offered will be determined based on relevant factors including skills, experience, qualifications, and location. This position may also be eligible for additional compensation such as bonuses, equity, or other benefits.
Candidates who don’t meet all of our requirements are encouraged to apply.

Acceleron Fusion is an equal opportunity employer, committed to building a welcoming, respectful, and inclusive workplace. We welcome applications from all qualified candidates regardless of background.

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