Communications Manager

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 Space

X, The White House, MIT, Rigetti Computing, The Air Force, General Atomics, Relativity Space, Ursa Major, and National Laboratories like Los Alamos, Idaho, and Oak Ridge. Antares has raised over $130M in venture capital from top‑tier investors and has over $13M in government funding.

The Communications Manager is in charge of developing an inspiring, methodical way of telling the story of Antares, building the Antares brand, honing the Antares reputation, and increasing the awareness of key audiences ahead of our June 2026 low power reactor demonstration, on to our next fundraise and beyond.

This person will:

• Manage public affairs and communications for the company.
• Manage all media relations for Antares. Build a network of journalists who cover defense, energy, space, and venture‑backed start‑ups for Antares leadership to communicate major events in the advanced nuclear industry.
• Assist the CEO with all public speaking appearances by channeling his voice and refine his public messaging.
• Build the brand name and awareness of Antares so that the leaders of Antares, including the CEO and head of federal strategy and policy, are top of mind for every story when big events occur and journalists want a scoop.
• Create a recurring stream of content that we can create more publicity around. Anticipate and foster opportunities for us to tell our story in a positive way. This includes creating content for use on Linked In, Op‑eds, speeches, videos, podcasts, and other social media accounts.
• Manage all field marketing for events in which Antares participates. This includes coordinating our brand and public facing communications, assisting with speaking events, recruiting messaging, etc.
• Manage all product marketing including the Antares website, fliers, publicly distributed slide decks, etc. Update, refresh, and maintain these documents regularly to feature more pictures of hardware, new additions to the factory, and the team’s great work on the website, fliers, and slide decks.
• Manage the creative content calendar and content development (including photo and video shoots).
• Manage relationships with any outside Public Relations firms or agencies with whom Antares chooses to partner.

• Bachelor’s degree
• 3+ years of public affairs experience

• 7+ years of public affairs and public relations experience
• Experience with the development and execution of multiple strategic communications plans to include a roll‑out and follow‑up actions.
• Good writing (Smart Brevity, no passive voice, avoid repetition, etc.)
• Attention to detail; avoiding typographical errors
• The ability to explain complicated concepts in science, technology, defense, and engineering in clear language that the average reader can understand without jargon or acronyms.
• Master’s degree preferred
• Understanding of and familiarity with the U.S. military, nuclear energy industry, space, NASA, the lunar economy, and the venture‑backed startup ecosystem. This understanding may come in the form of multiple years of work experience in any or all of these sectors or academic study of issues related to these topics.

• Ability to travel to locations as needed

• This role is based in DC. The Antares HQ is located in Torrance, CA in a 145,000 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 HQ is in the heart of Los Angeles' vibrant emerging tech ecosystem alongside many other high growth startups and enterprises.

At Antares, we like to specifically tie each role to…