Full-Time
Power Electronics Engineer
Commonwealth Fusion Systems
1,001-5,000 employees
Develops and commercializes fusion energy systems
Compensation Overview
$80k - $180k/yr
Senior
Devens, MA, USA
- 5+ years of related experience with Bachelor’s degree (or) a Master’s degree with 3+ years of experience with power electronics based systems
- Proven track record in design and development (system, protection, control & mechanical integration) of power electronics based electrical systems
- Experience with modeling & simulation with analysis tools such as PLECS, PSPICE, MATLAB etc.
- Experience with semiconductor devices (IGBTs, MOSFETs etc.) and magnetic components (transformers, inductors etc.)
- Experience with packaging design of power conversion equipment and thermal management
- Experience with testing of electrical components, sub-assemblies and systems in the laboratory
- Excellent written and verbal communication skills, ability to conduct design reviews, organize / present results to both expert and non-technical audiences
- Results driven and ability to embrace and convince stakeholders on a change in design direction in pursuit of a high-quality product release
- Develop technical specifications for Medium Voltage & Low Voltage power electronics & electrical components
- Design, model, simulate, analyze and validate power electronics circuits, magnetic components and control strategies for AC / DC medium voltage power supplies
- Develop test methods to drive design from concept through final testing and commissioning steps including troubleshooting of power supplies
- Contribute to technical design activities to design, build and deliver power electronics based electrical systems design for fusion power
- Apply core electrical engineering knowledge and experience to design Medium Voltage & Low Voltage system designs
- Interface with cross functional teams with focus on high quality design and implementation
- Collaborate with cross functional teams on critical procurement contracts & vendor coordination efforts
- Document design specifications, simulations and test results into engineering reports
- Master’s degree in electrical engineering with focus on Power Electronics
- Experience in practical application of electrical engineering skills to construction, manufacturing, testing and field installations
- Experience with application of compliance standards to the designs (IEC, UL, CSA, NEC etc.)
- Experience in problem solving, root cause analysis and field containment actions
- Experience with hands on prototype build, prototype testing and documentation of results is a plus
- Experience with scaling up independent systems to a larger system to meet higher power requirements
Commonwealth Fusion Systems focuses on developing fusion energy as a clean and sustainable power source. The company utilizes advanced magnet technology, created in partnership with MIT, to build smaller and more affordable fusion systems called tokamaks. These devices use magnetic fields to confine plasma in a toroidal shape, which is an effective method for achieving fusion. Currently, CFS is manufacturing high-temperature superconducting magnets and constructing SPARC, the first fusion machine designed for commercial energy production. The success of SPARC will lead to the development of ARC, the first fusion power plant. CFS differentiates itself from competitors by its commitment to scientific integrity and a mission-driven approach, aiming to provide cost-competitive fusion energy to help combat climate change. The ultimate goal is to deliver a reliable and abundant energy source that can significantly reduce the impact of climate change.
Company Size
1,001-5,000
Company Stage
Series B
Total Funding
$3B
Headquarters
Harvard, Massachusetts
Founded
2018
Simplify's Take
What believers are saying
- CFS raised over $1 billion to advance its ARC fusion reactor.
- The planned Virginia fusion plant positions CFS as a leader in fusion commercialization.
- Increased interest from data center developers could lead to strategic partnerships for CFS.
What critics are saying
- Achieving net energy-positive fusion reactions remains a significant challenge for CFS.
- Competition from startups like Realta could threaten CFS's market share.
- Deuterium absorption in tokamak reactors may impact CFS's fuel efficiency and costs.
What makes Commonwealth Fusion Systems unique
- CFS uses rare-earth barium copper oxide superconductor technology for energy development.
- Collaboration with MIT enhances CFS's fusion research and technological capabilities.
- CFS's SPARC and ARC projects aim to commercialize fusion energy by the early 2030s.
Help us improve and share your feedback! Did you find this helpful?
Benefits
12.5 Company-wide Holidays
Our vacation policy is 'take vacation'
Our sick time policy is 'get better and try not to make others sick'
Generous parental leave policy
Health Reimbursement
Health, Dependent Care, & Limited Purpose Flexible Spending Accounts
Delta Dental, Blue 20/20 Vision optional
Wellbeing / Headspace coverage
Short-term & long-term disability
Life and AD&D insurance
401K
Growth & Insights and Company News
6 month growth
↑ 1%1 year growth
↑ 2%2 year growth
↑ 0%Commonwealth Fusion Systems has raised over $1 billion in its Series B2 round to advance its ARC fusion reactor, bringing total funding to nearly $3.8 billion. The company aims to deliver fusion power by the early 2030s. Additionally, Germany has shifted its stance on nuclear power, aligning with France to support nuclear energy in EU legislation under Chancellor Friedrich Merz. The Nuclear Company also raised $51 million to develop large-scale reactor campuses.
Commonwealth Fusion Systems has reportedly raised $1 billion in an extension of its Series B round to support the buildout of its demonstration fusion power reactor... University of Wisconsin spinout Realta raised $36 million for its modular magnetic mirror fusion technology.
Commonwealth Fusion Systems (CFS) has raised over $1 billion, led by an unnamed hyperscale data center developer, to build 400MW fusion reactors within a decade. CFS plans to construct the 'ARC' fusion power plant in Virginia by the early 2030s and aims to have a test system, 'SPARC,' by 2027. Despite challenges in fusion investments, CFS secured funding, while other companies like First Light Fusion and General Fusion face financial difficulties.
CFS has been developing SPARC step by step for years.
Fusion Fuel EfficiencyNuclear Fusion is potentially the ultimate green energy source, producing no dangerous byproducts, radioactivity (the only “waste” is helium), or greenhouse gases. And it could be powered by a fuel so abundant that it is a significant percentage of the entire Universe: deuterium, an isotope of hydrogen.But this is also a very difficult to achieve form of energy generation. It requires replicating on Earth the conditions in the core of the Sun, with tremendous pressures and tens or hundreds of millions of degrees.Nuclear fusion has been achieved in physics laboratories for decades, but a net energy-positive fusion reaction is still to be reached. This is what many are racing to accomplish, from the international megaproject ITER to commercial fusion projects like Commonwealth Fusion Systems and Proxima Fusion.Commercial viability will depend not only on achieving stable and energy-positive plasma generation, but also on the general efficiency of the process.One open question is the fuel efficiency. Deuterium is known to be partially absorbed by the walls of the tokamak fusion reactors. Researchers at Princeton University, University of California, University of Tennessee, Sandia National Laboratory, and General Atomics are figuring it out.They published their results in Nuclear Materials and Energy1, under the title “Deuterium retention behaviors of boronization films at DIII-D divertor surface”.Deuterium, Tritium FusionThe lighter an atom is, the more potential energy is released when it undergoes nuclear fusion