Verified current Job

Molten Salt Engineer

About Commonwealth Fusion Systems: 

Job Full source details
Cfsenergy Source published Sep 20, 2026 Verified 11 hours ago
✓ 100% verification score · Source: cfsenergy (lever) · Always confirm final requirements on the original source.
Complete source information imported The available role or programme description, requirements, benefits and source facts were imported from the public official endpoint and formatted for reading.
EmploymentFull-time

Overview

About Commonwealth Fusion Systems: 

Full 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, suppliers, and many others to build the energy industry of the future.

We’re in the best position to make it happen. Since 2018, we’ve raised $4 billion of capital, making us the largest and leading 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 Molten Salt Engineer Salt chemistry is a critical driver of corrosion, hydrogen speciation, and material behavior under irradiation. As the Blanket System team scales up to larger systems, maintaining precise control over salt chemistry is vital. We are seeking an entry-level Molten Salt Engineer to support our experimental testing operations. Initially, you will focus on executing standard operating procedures (SOPs), conducting routine materials testing, and maintaining rigorous quality controls. As you build familiarity with our systems, your role will expand to include experimental design, test cell design and construction, and leading projects in materials corrosion and blanket health monitoring. Ideal candidates will have a background in chemistry, chemical engineering, or a related discipline. The Blanket System team has a strong culture of teamwork, supportive safety culture, and pragmatic risk management. We are looking for an engineer who will fit and actively contribute to this culture.

Perform corrosion testing of novel materials in molten salts

Perform device testing in molten salts to obtain statistics on device performance

Design and build new test cells for molten salt R&D

Assist with lab maintenance and upkeep

Write and modify SOPs for safe handling of hazardous chemicals, including fluoride salts (FLiBe)

Bachelors degree in Chemistry, Chemical Engineering, Materials Engineering, Nuclear Engineering, Mechanical Engineering, or similar field

0-2 years of work experience

Experience with R&D work in a chemical or engineering laboratory

Experience working with safety systems for hazardous chemicals

Ability to learn new skills/subject matter quickly

Ability to work effectively in a multidisciplinary team of engineers, scientists, technical staff and others

Ability to clearly express and critique ideas

Great communication and organizational skills

Strong problem solving skills, ability to approach new problems with creativity

High temperature chemistry

Molten salts

Electrochemistry

Ceramics

Python, MATLAB, or equivalent for data analysis

Building and commissioning new laboratory equipment

CAD software

Ability to occasionally lift up to 50 lbs

Perform activities such as sitting, typing, standing, stooping, or climbing 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, and cryogenics

Willingness to travel or work required nights/weekends/on-call occasionally

Tips for this job

Practical Job and Scholarship guidance. These tips do not replace official rules or create new eligibility requirements.

  1. Tailor the CV and application to the responsibilities and required skills stated on the official employer page.
  2. Use concrete evidence of relevant work, projects and measurable results rather than generic claims.
  3. Confirm location, work authorization, remote restrictions and sponsorship terms before applying.
  4. Apply through the original employer or official recruitment destination shown on this page.

Verification notes

laptop-ats-crawler v2

Original authoritative source

Job and Scholarship is the discovery and verification layer. Confirm eligibility, dates, salary/funding and application instructions on the original source before submitting anything.

cfsenergy (lever) ↗

Browse current Job and Scholarship listings from cfsenergy (lever) →

Related opportunities

Other current verified records you may want to review.

More ways to save

Discover deals, coupons and free courses on our sister site.

Explore DealVorio
Save more with DealVorio: deals, coupons, free courses, apps and books