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.

Formed in 2023, the Antares team hails from SpaceX, The White House, MIT, Rigetti Computing, The Air Force, General Atomics, Relativity Space, Ursa Major, Ultra Safe Nuclear, and Los Alamos National Laboratory. Antares has raised over $39M in venture capital from top-tier investors and has over $4M in government funding.

About the Team

As the founding member of the Software Engineering team, you will be Antares’ expert on software tooling. You will take ownership of developing Antares’ multiphysics simulation tools and play a pivotal role by designing, developing, and deploying critical features that allow the company to build end to end simulations of reactivity, thermodynamics, and structural integrity of nuclear reactor designs through their operating life. You'll be a technical leader, collaborating closely with Nuclear, Mechanical, Structural, and Thermofluids engineers to bring complex products to life. This role offers a unique opportunity to leverage your full-stack expertise across the entire development lifecycle on a hardtech product.

Design, develop, and deploy high-quality, performant, and scalable data intensive applications using Python (backend) and JavaScript (frontend) frameworks.
Collaborate with Mechanical, Nuclear, Structural, Thermal, and Systems Engineers to translate product requirements into elegant and maintainable multiphysics simulation tools that engineers themselves can contribute to.
Write clean, well-documented, and secure code that adheres to best practices and coding standards.
Implement unit tests, integration tests, and shepherd an automated testing processes.
Debug, troubleshoot, and resolve technical issues in a timely and efficient manner.

Basic Qualifications:

7+ years of experience as a Full-Stack Software Engineer.
Strong proficiency in Python and JavaScript (including modern frameworks like Django/Flask and React/Vue.js)
Systems design and architecture mastery of data intensive applications
Experience with version control systems (e.g., Git) and CI/CD pipelines.
Excellent communication, collaboration, and problem-solving skills.
Excellent product sense.
Comfort in Python based data processing and analysis libraries (Pandas, NumPy, etc)
A passion for building high-quality software for end-users and a desire to learn and grow.
Experience with relational databases.

Preferred Skills & Experience

Team management and mentoring experience (for when we grow the team further)
Experience building internal tools.
Experience mentoring and guiding junior engineers
Experience working on software for hard tech and manufacturing problems.
Experience with cloud platforms (e.g., AWS, GCP, Azure)
Experience with time-series datastores
Familiarity with DevOps principles and Infrastructure as a Service.

Additional Requirements:

Ability to work long hours and weekends as necessary to support critical milestones
Desire to work in-person and/or relocate close to the office (Redondo Beach, CA)

Culture

At Antares, we like to specifically tie each role to our founding document’s set of values–here are the top five cultural values we think you should believe at your core to be successful:

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.”
Craftsmen - We also focus on the inputs. We aspire to high-quality engineering for its own sake. As such, we invest in personal growth, learning, and developing a long-term career path for exceptional individual contributors. We embrace a beginner’s mindset, share knowledge, and never condescend the curious.
Seriously Optimistic - We’re ambitious and we believe we’re capable of achieving things others believe are impossible. We reward audacity, and don’t let cynicism, sarcasm, snark, or belittlement influence us to lower the bar

ITAR Requirements

To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.

Antares

About Us

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