Mechanical Engineering Design Intern - Summer 2027

Antares Nuclear · Internships

Pay: $34 per hour
Where: Los Angeles
Posted: Sep 10

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.

What you'd do

We are located in Torrance, CA in a 322,000 square foot, brand new facility featuring large open spaces for team collaboration, R&D, and production, as well as easy access to the 405, 105, and 110 freeways.
Our facility is in the heart of Los Angeles' vibrant emerging tech ecosystem alongside many other high growth startups and enterprises.
Think in Systems - Energy and Defense are complex ecosystems with numerous stakeholders with competing priorities, conflicting policies, perverse incentives, and emergent and path-dependent properties.
First principles thinking alone is insufficient.
Think probabilistically and then take action.
“If you want to be certain, then you are apt to be obsolete.” Over-optimizing the components often degrades the system
Obsess over the End User - The customer and end user are often not the same. We will never build globally competitive commercial products if we lose sight of our end users and their entire interaction with the product life cycle
Be Unconstrained by Convention - Our only limits are the laws of physics.
Many, even experts, will say what we are working on is impossible.
They said the same about SpaceX reusing rockets.
Generationally impactful companies, by definition, must accomplish the seemingly impossible.
If it were easy, it would have already been done.
Never shy away from a solution because it has never been tried before, and never choose to do something because that's “how it's always been done”
Go Where the Work Is - Never miss a chance to meet a customer, user, or stakeholder face to face, even if that means hopping on a plane.
If you can’t make it, find a teammate who can channel your intentions and go in your place.
Deep work can be done from anywhere, but we believe teams are built in person, and aim to maximize our time together
Operate in the Grey - Embrace nuance in pursuit of truth. Question every fundamental assumption

What they want

Currently enrolled in a bachelor’s degree program in mechanical engineering, aerospace engineering, or a related discipline.
Entering the junior or senior year of study.
6+ months experience of technical engineering skills outside of the university setting classroom (eg: laboratory, research, extracurricular project teams, volunteering, personal projects or prior internship/work experience)