Combining decades of research, top talent and new technologies, we’re designing and building commercially viable fusion power plants. And 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 over $2 billion in capital – more than any other fusion energy company in the U.S.

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 Materials Test Engineer II

The Materials Test and Characterization Group at CFS is looking for an experienced materials test

engineer to support the ongoing design, engineering, and delivery of the SPARC net energy tokamak

being built in Devens, MA. Fusion energy systems require high performance materials in extreme

environments. The material properties and failure modes must be tested in similar extremes to

validate they will be able to meet the strict requirements. Materials test engineers will interface with

multiple stakeholders across CFS including design engineering, supply chain, electromagnetic

analysts, and more. We are seeking engineers with strong materials science fundamentals and

hands-on materials testing experience. Experience with a variety of material characterization, design

of experiments and interest in developing test methods are desired. Knowledge on performance of

materials at cryogenic temperatures is preferred.

What you'll do:

Participate in the evaluation and qualification of materials and components for structural and functional applications within SPARC and ARC
Support development of test fixtures for mechanical testing of materials and components
Translate performance requirements into material property specifications and define appropriate test methods
Support Materials Engineers on translating performance into material property specifications for internal customers
Define and develop appropriate test methods to use for each unique test
Ensure efficient and timely transfer of property data and new insight to materials engineering teams
o Execute test validation and analysis for data generated by materials test operators
Work closely with other CFS teams including:
o Safety team to manage chemical/mechanical/environmental hazards in existing and new experimental facilities
o Adjacent R&D teams to optimally share pooled resources including equipment and personnel
o Supply chain team to procure new equipment and materials
Provide technical guidance to project team members to ensure efficient execution of design- build-test-learn cycles and retirement of technical risks

What we’re looking for:

BS in Materials Science and Engineering or related field with 5 years of relevant experience
Experience with material characterization and material property testing
Testing to industry or international standards such as ASTM and ISO standards
Experience writing standard operating procedures for technical tasks
Experience operating static and dynamic mechanical test frames, extensometers, and strain gauges
Experience with optical and electron microscopy for material characterization and failure analysis
Understanding and experience testing in various environments include extreme temperature and high vacuum applications
Design of experiments
Data analysis, interpretation, and visualization
Knowledge of materials mechanical testing concepts including: Tensile test, Low and high cycle fatigue, Shear, Fracture Toughness, Bending Moment, Hardness etc.
Knowledge in test procedures for advanced mechanical testing (low/high cycle fatigue, high and low temperature mechanical testing)
Familiarity with a variety of material engineering disciplines including characterization of metallic and non metallic materials, adhesives, failure analysis and manufacturing operations
The ability to participate in and promote CFS’ safety procedures and policies
Ability to work effectively in a multidisciplinary team of engineers, scientists, test operators and others
Ability to clearly express and critique ideas
Ability to rapidly execute short turnaround engineering/R&D tasks
Ability to communicate with a wide range of technical and non-technical audiences
Strong problem solving skills, troubleshooting skills and ability to approach new problems with creativity
Resource estimation and projection
Strong time management skills
Self - motivation and autonomy

Bonus points for:

Experience with physical property testing of materials using Dilatometer, PPMS, FTIR, VSM etc. and subsequent data analysis
Experience with metallographic sample preparation and analysis
Experience with vacuum systems and vacuum furnaces
Experience with material outgassing testing

Must-have Requirements:

Ability to occasionally lift up to 50 lbs
Extended activities such as typing, standing, and sitting
Dedication to safety to mitigate 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

#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.

Apply now

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