R&D Test Engineer

NewGet help on your job search

Need help in your climate job search? Dive deep into climate with Terra.do’s 12-week climate bootcamp course.

Terra.do has partnered with ClimateTechList to give ClimateTechList users a 15% discount for its flagship Climate Change: Learning for Action program.

Job Description

Commonwealth Fusion Systems (CFS) has the fastest, lowest cost path to commercial fusion energy.


CFS collaborates with MIT to leverage decades of research combined with groundbreaking new high-temperature superconducting (HTS) magnet technology. HTS magnets will enable compact fusion power plants that can be constructed faster and at lower cost. Our mission is to deploy these power plants to meet global decarbonization goals as fast as possible. To that end, CFS has assembled a team of leaders in tough tech, fusion science, and manufacturing with a track record of rapid execution. Supported by the world’s leading investors, CFS is uniquely positioned to deliver limitless, clean, fusion power to combat climate change. To implement this plan, we are looking to add dedicated people to the team who treat people well, improve our work by adding multifaceted perspectives and new ways of solving problems, have achieved outstanding results through a range of pursuits, and have skills and experience related to this role.


The role of a Test Engineer is to seamlessly flex between multiple disciplines and groups to effectively execute tests and projects on aggressive schedules supporting Commonwealth Fusion System’s mission. This engineer will be primarily responsible for testing and retiring risks for CFS’ HTS magnets. They must have a fundamental understanding of mechanical, electrical, materials, fluids and software engineering, or some combination thereof. This role in particular heavily emphasizes the mechanical design and construction of the test equipment. They will be responsible for the design, build, and commissioning of equipment in support of development, qualification and production test objectives. They must work collaboratively across manufacturing, R&D, procurement, and SPARC teams to achieve their test campaigns. It is also the role of the test engineer to constantly push and challenge the requirements, risks, and test objectives that they are given to help the combined stakeholders come to a consensus on why the planned test is required and what data is deemed essential for the outcome to be achieved.

Apply to Job

👉 Please mention that you found the job on ClimateTechList, this helps us get more climate tech companies listed here, thanks!

Get a referral to Commonwealth Fusion Systems

If possible, try to get a warm intro/referral to Commonwealth Fusion Systems before applying! Do a LinkedIn search to see who you may know at the company. See this LinkedIn post from Steven for more details on this tactic.

All job openings from Commonwealth Fusion Systems

Join ClimateTechList Talent Collective

Want to be matched with companies directly? Apply to the talent collective.

Here's how it works:

  1. You submit an application

  2. We'll share your profile with climate tech companies potentially interested in chatting with you

  3. We'll reach out if there's a company interested in talking to you.

Join ClimateTechList Talent Collective

Want to be matched with companies directly? Apply to the talent collective.

Here's how it works:

  1. You submit an application

  2. We'll share your profile with climate tech companies potentially interested in chatting with you

  3. We'll reach out if there's a company interested in talking to you.