About Us
We’re pioneering the next generation of nuclear technology to deliver safe, scalable, and sustainable energy. Our team is small, fast-moving, and mission-driven - combining deep technical expertise with a startup’s sense of urgency. As we grow, we’re designing the systems that will redefine what nuclear power can do for the world.
As an emerging leader in nuclear engineering, our startup is developing revolutionary reactor technology to secure safe and abundant energy for future generations. We are seeking a highly motivated EA to join our dynamic team.
Position Overview:
The Executive Assistant (EA) to the Chief Operating Officer serves as a critical operational partner to the COO, enabling executive effectiveness across a broad portfolio that includes Quality, Engineering, Licensing, and Human Resources. This is a high-trust, high-impact role for a detail-oriented professional who thrives in a fast-paced, mission-driven environment.
The ideal candidate brings polished administrative expertise, composure, strong written communication skills, with a high degree of intellectual curiosity and initiative. This position offers a unique opportunity to contribute to one of the most consequential technology sectors of our time.
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Executive & Calendar Management
Travel & Logistics
Expense Management & Reconciliation
Communications & Technical Editing
Operational Support
Minimum Qualifications
Preferred Qualifications
If you are passionate about the energy that impacts our day-to-day lives and want to work with talented and dedicated people across the globe, apply today!
Fissionaire’s technology is subject to U.S. export control regulations, which require the company to review applicants’ eligibility based on their citizenship or residency status. As part of the application process, candidates will be asked to indicate whether they are a U.S. citizen, green card, lawful permanent resident, asylee, or refugee resident to support this review. Because government authorization timelines can vary, Fissionaire is unable to consider alternate resident statuses where required approvals may not be obtainable within a timeframe that meets business needs.
Fissionaire is an Equal Opportunity Employer that does not discriminate on the basis of actual or perceived race, colour, creed, religion, national origin, ancestry, citizenship status, age, sex or gender (including pregnancy, childbirth, pregnancy-related conditions, and lactation), gender identity or expression (including transgender status), sexual orientation, marital status, family or relationship structure, military service and veteran status, physical or mental disability, genetic information, gender identity, or any other characteristic protected by applicable federal, state, or local laws and ordinances. Fissionaire’s management team is dedicated to this policy with respect to recruitment, hiring, placement, promotion, transfer, training, compensation, benefits, employee activities, access to facilities and programs, and general treatment during employment.
