About Us

At Antares, our long-term mission is to make clean energy abundant from Earth to the Asteroid Belt. We’re fueled by the belief that advanced nuclear energy can strengthen our military, solve the climate crisis, elevate global living standards, and expand humanity's presence in outer space. To achieve our mission, we’re building mass-producible, inherently safe, deployable microreactors that can be used terrestrially, underwater, and in space.

The Antares team hails from SpaceX, the White House, the Pentagon, the Department of Energy, MIT, Rigetti Computing, General Atomics, Relativity Space, Ursa Major, and National Laboratories like Idaho, Oak Ridge, Los Alamos, and Savannah River. Antares has raised over $600M in venture capital from top-tier investors and has hundreds of million-dollars on contract with the military services, NASA, and the Department of Energy.

About the Summer Internship Program

Internships at Antares are anything but ordinary. You'll work alongside our team as we design, build, and test fission microreactors built to deliver reliable energy for critical missions on Earth, in space, and underwater.

Our interns contribute to real work from day one. Depending on your role, you may touch hardware, write and test software, support manufacturing and operations, or help build the systems that allow Antares to move quickly as we scale. You'll work alongside engineers, operators, and other experts solving challenging problems—and you'll leave your internship with hands-on experience that's difficult to find anywhere else.

We work hard, move quickly, and take pride in what we're building. If you're excited to learn by doing and want to contribute to the next generation of nuclear energy, we'd love to have you join us next summer.

We will be running two separate cohorts to accommodate students on both semester and quarter schedules:

Cohort #1

Monday, May 17 – Friday, August 13

Cohort #2

Monday, June 14 – Friday, September 10

All internship roles are based at one of our offices (Torrance/Idaho Falls/Washington D.C.) and require interns to work onsite five days per week. We will not be considering candidates for remote or hybrid arrangements.

Interns will receive a relocation and housing stipend as part of their offer package if eligible.

About the Role

Antares Nuclear is seeking a highly motivated and resourceful Government Affairs Intern to support the company's government affairs, communications, international business development, and commercial business development efforts from our Washington, D.C. office.

This position offers a unique opportunity to work on emerging national security and energy policy issues while helping advance the commercialization and international deployment of next-generation nuclear technology. The intern will support research, stakeholder engagement, strategic planning, and business development initiatives, working closely with Antares leadership and cross-functional teams.

The ideal candidate is an excellent writer and researcher, has a strong interest in national security, energy, public policy, or emerging technologies, and thrives in a fast-paced environment where initiative and attention to detail are essential.

Roles and Responsibilities

Monitor congressional activity, federal legislation, appropriations, defense authorization, and executive branch initiatives relevant to advanced nuclear energy and microreactor deployment.

Research and analyze policy developments across the Pentagon, Department of Energy, Department of State, Department of Commerce, NASA, and other relevant federal agencies.

Assist in preparing briefing materials, talking points, policy memoranda, presentations, and other materials for meetings with government officials and congressional offices.

Track engagement with congressional offices, federal agencies, military services, and other key stakeholders.

Identify opportunities to advance policies, programs, and funding initiatives that support microreactor deployment for national security and commercial applications.