Senior Executive Assistant

JobsCloseBy Editorial Insights

Senior Executive Assistant at The Nuclear Company is a high visibility on-site role in Washington, DC, supporting the executive team in a growing nuclear startup. The ideal candidate is proactive, exceptionally organized, and thrives in ambiguity, expertly managing complex calendars, coordinating meetings and travel, and acting as a trusted gatekeeper for confidential information. This position demands strong judgment, high emotional intelligence, and a collaborative approach to move strategic initiatives across teams. To apply, tailor your resume to 6+ years of C-level support, highlight calendar and travel management, demonstrate discretion, and submit via our official careers page with a concise cover letter linking your experience to our mission.

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The Nuclear Company is the fastest growing startup in the nuclear and energy space creating a never before seen fleet-scale approach to building nuclear reactors. Through its design-once, build-many approach and coalition building across communities, regulators, and financial stakeholders, The Nuclear Company is committed to delivering safe and reliable electricity at the lowest cost, while catalyzing the nuclear industry toward rapid development in America and globally.

About the role

We are seeking a highly skilled Senior Executive Assistant to support our executive team in a fast-paced, mission-driven environment. This role will serve as a strategic partner, trusted gatekeeper, and logistical anchor ensuring our senior leadership is equipped to focus on the highest-impact priorities. 

The ideal candidate is proactive, exceptionally organized, and thrives in ambiguity. They are skilled at managing complex calendars, sensitive communications, and cross-functional coordination, while anticipating needs before they arise. This is a high-visibility role that requires discretion, strong judgment, and an unwavering attention to detail. 

Responsibilities

Executive Support & Calendar Management 

• Manage complex calendars, scheduling, and prioritization for senior executives, often across multiple time zones. 

• Coordinate internal and external meetings, including agendas, prep materials, and follow-ups. 

• Serve as a trusted point of contact for internal and external stakeholders. 

Travel & Logistics 

• Plan and manage end-to-end travel arrangements, including flights, accommodations, itineraries, and expense reporting. 

• Ensure executives are prepared with necessary materials and briefings. 

Meeting & Communication Support 

• Prepare materials for leadership meetings, board decks, and investor communications. 

• Attend meetings as needed to capture notes, follow-ups, and action items. 

• Handle confidential and time-sensitive information with professionalism. 

Operational & Strategic Coordination 

• Act as an extension of the executive in day-to-day operations, communications, and decision-making. 

• Track key initiatives and ensure follow-through by coordinating across teams. 

• Build strong relationships across the organization to enable effective flow of information. 

Administrative Operations 

• Process expense reports, manage vendor relationships, and support office coordination tasks. 

• Build and refine processes for executive support, travel, calendaring, and internal communication. 

• Support special projects and event planning on behalf of the executive team. 

Experience

• 6+ years of executive assistant experience supporting C-level or VP-level leaders. 

• Exceptional written and verbal communication skills. 

• Strong experience with Microsoft Office Suite (Outlook, Word, Excel, PowerPoint) and collaboration tools (Teams, Zoom, Slack, etc.). 

• Proven ability to manage competing priorities in a high-pressure environment. 

• High emotional intelligence and strong relationship-building skills. 

• Experience handling confidential information with discretion. 

Benefits

• Competitive compensation packages
• 401k with company match
• Medical, dental, vision plans
• Generous vacation policy, plus holidays

Estimated Starting Salary Range
The estimated starting salary range for this role is $118,000 - $140,000 annually less applicable withholdings and deductions, paid on a bi-weekly basis. The actual salary offered may vary based on relevant factors as determined in the Company’s discretion, which may include experience, qualifications, tenure, skill set, availability of qualified candidates, geographic location, certifications held, and other criteria deemed pertinent to the particular role. 

EEO Statement
The Nuclear Company is an equal opportunity employer committed to fostering an environment of inclusion in the workplace. We provide equal employment opportunities to all qualified applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic. We prohibit discrimination in all aspects of employment, including hiring, promotion, demotion, transfer, compensation, and termination.

Export Control
Certain positions at The Nuclear Company may involve access to information and technology subject to export controls under U.S. law. Compliance with these export controls may result in The Nuclear Company limiting its consideration of certain applicants.   Recruiting Fraud Alert
Your safety is our priority. We want to ensure your job search stays secure. Please note that the team at The Nuclear Company only communicates through official @thenuclearcompany.com email addresses. We will never ask for payments or sensitive financial information at any stage of our recruitment process. For your peace of mind, please verify all openings and submit your applications directly through our official careers page.