Senior R&D Electromagnetic Analysis Engineer

Commonwealth Fusion Systems

Harvard (MA)

On-site

USD 120,000 - 160,000

Full time

14 days+

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Benefits offered by this job

Competitive compensation with equity

Flexible vacation days

Health, dental, and vision insurance

401(k) with employer matching

Job summary

Commonwealth Fusion Systems, based in Massachusetts, is looking for a Senior R&D Electromagnetic Analysis Engineer to perform electromagnetic analysis of superconducting magnets and enhance design decisions. The ideal candidate will possess extensive experience in computational electromagnetics, particularly using finite element methods.

Your role involves collaboration with experimental teams to validate models, as well as mentoring new team members. The company offers competitive compensation, equity, and a strong commitment to professional growth.

Qualifications

7+ years of experience in modeling electromagnetics using finite element methods.
Strong background in computational electromagnetic analysis and non-linear physics.
Ability to customize commercial software or develop new codes.

Responsibilities

Perform electromagnetic analysis of superconducting magnets.
Collaborate with experimental teams on measurements and validation.
Develop new tools for multi-objective design optimization.

Skills

Electromagnetic analysis

Finite element method

Computer programming (Python, MATLAB)

Data analysis

Problem-solving

Education

Bachelor’s Degree in electrical engineering or relevant field

Tools

COMSOL

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.

Join the power movement as a Senior R&D Electromagnetic Analysis Engineer

The R&D team’s mission at CFS is to vet potential technical solutions in order to guide the overall SPARC subsystem design, and plan for the technology needs of future fusion power plants and spin-off projects. The Electromagnetics Analysis Engineer within the R&D team will perform electromagnetic (EM) analysis of superconducting magnets using finite element and other methods. This analysis includes the non‑linear, anisotropic behavior of high‑temperature superconductors (HTS) in both insulated and non‑insulated magnet systems. Incorporating complex multi‑physics (heat transfer, fluids, mechanics, etc.) system behavior into simplified, elegant network circuit and/or FEA models are also crucial to modelling the multi‑physics behavior of superconducting magnets. The Electromagnetics Analysis Engineer will also work with a team of experimentalists and engineers to validate simulations against experimental data. Familiarity with both commercial finite element analysis software packages and developing custom in‑house code in python and extensions of commercial packages is necessary. This work is conducted within a multi‑disciplinary team of physicists and engineers. Participation and clear, concise communication in design and test activities is necessary to both inform design decisions and correlate models to experiment.

What you’ll do

Perform electromagnetic analysis of superconducting magnets and inform design decisions
Work with experimental teams on instrumentation, measurement, and correlation of experiment to analysis
Develop new numerical tools, as needed, to facilitate multi‑objective design optimization of high‑temperature superconducting magnets
Perform non‑linear, highly‑anisotropic E&M simulations in complicated geometries
Identify enabling technologies in the modeling and construction of high‑temperature superconducting magnets
Prepare reports and presentations as necessary
Mentor and guide new members of the team in magnet design and analysis as necessary

What we’re looking for

At least a Bachelor’s Degree in electrical engineering or another relevant field with an EM background (physics, mechanical engineering, etc.)
7+ years of experience modeling electromagnetics using finite element method
A strong background and theoretical understanding of computational electromagnetic analysis
Experience modeling non‑linear physics
Experience with commercial finite element tools; COMSOL preferred
The ability to customize commercial finite element tools or develop new in‑house codes in modern programming languages such as Python, MATLAB, C, C++
Able to quickly grasp experimental setups and analyze data to validate models
An ability to clearly express and critique ideasAbility to innovate towards solutions to complex problems
An emphasis on elegance and simplicity over complexity
A drive towards commercially viable solutions
A history of thriving in fast‑paced, dynamic environments
Values that align with our company’s values of integrity, execution, impact, and self‑critique

Bonus points for

Multi‑physics FEM modeling with electromagnetics, heat transfer, mechanics, fluids, structures, etc.
Experience working with superconducting non‑linear physics
Developing equivalent thermal and electrical circuit models
Familiarity with agentic coding tools and best practices

Must‑have requirements

Perform activities such as sitting 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

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.

Salary and Benefits

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 U.S. locations.