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Executive Assistant

Antares - Washington, DC, United States - In-office - posted 2026-10-06

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Antares is building mass-producible, inherently safe, deployable microreactors for terrestrial, underwater, and space applications, with a mission to make clean energy abundant from Earth to the Asteroid Belt. The company has raised over $600M in venture capital and holds hundreds of millions in contracts with military services, NASA, and the Department of Energy. The team includes veterans from SpaceX, the White House, the Pentagon, the Department of Energy, MIT, and national laboratories. Reporting directly to the Chief Nuclear Officer (CNO), you will serve as a high-level executive assistant, acting as the operational hub between leadership, partners, candidates, and government officials (domestic and international). This role requires exceptional organization, discretion, seamless communication, and the ability to thrive in a fast-paced, mission-driven environment across multiple time zones. Key responsibilities include: - Coordinate the CNO's complex calendar, meetings, and travel arrangements (domestic and international) - Support scheduling for the larger DC team as needed - Prepare agendas, briefing materials, and follow-up communications on behalf of CNO and DC leadership - Manage confidential projects, documents, and communications with investors and partners with strict discretion - Serve as liaison across internal teams (Antares offices in DC, Los Angeles, Idaho, Seattle, South Carolina) and external partners (public and private) - Conduct ad-hoc research and light analysis to support strategic initiatives - Prepare materials including presentations, reports, and internal documentation - Maintain project timelines and track CNO and DC Team deliverables - Manage office operations The role demands extreme organization, proactive problem-solving, high emotional intelligence, and the ability to handle confidential information with discretion. You will juggle multiple projects simultaneously while ensuring nothing slips through the cracks. Antares values systems thinking, obsession over end-user outcomes, being unconstrained by convention, going where the work is (including frequent travel), and operating with nuance in pursuit of truth. REQUIREMENTS: - 3+ years supporting C-level executives, ideally within government, tech, defense, or high-growth startups - Proficiency with Microsoft Office suite and Slack - Exceptional verbal and written communication skills - Proactive, highly organized, with strong problem-solving abilities - High emotional intelligence and calm under pressure - Ability to handle confidential information with discretion - Skilled at managing multiple projects simultaneously - Driven, curious, and eager to take on increasing responsibility - U.S. citizenship or eligible immigration status (ITAR requirement: U.S. citizen, national, lawful permanent resident, refugee, or asylee; or eligible to obtain required authorizations from U.S. Department of State)

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