Manufacturing Engineering Intern - Summer 2027

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 our Torrance headquarters 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. About the Team The Manufacturing team turns engineering designs into repeatable, safe, and well-documented build processes. The team partners with design, test, quality, supply chain, and operations to prepare development hardware, execute builds, capture learning, and improve how work is performed as Antares scales. As a Manufacturing Engineering Intern, you will contribute directly to development and test builds. You will help create the work instructions and concepts of operations needed to execute hardware safely and consistently, while gaining hands-on experience in a fast-moving engineering and manufacturing environment. Roles and Responsibilities: Help develop, revise, and release clear manufacturing work instructions for development and test hardware. Support the planning and execution of test builds, including build readiness, materials, tools, sequencing, and documentation. Develop concepts of operations (CONOPS) that define build objectives, roles, workflow, safety considerations, and expected outcomes. Lead defined portions of test and development builds under the guidance of manufacturing engineers. Perform hands-on assembly, integration, inspection, and test support as appropriate for the assigned hardware and training. Capture build data, deviations, issues, and lessons learned; translate findings into improved instructions and processes. Partner with design, test, quality, and operations teams to resolve build issues and incorporate manufacturability feedback. Maintain an organized, safe, and quality-focused work environment while following applicable procedures and controls. Basic Qualifications: Currently pursuing a degree in mechanical engineering or another relevant engineering or technical discipl