Executive Assistant

Vannevar is a defense technology company building AI to deter our adversaries. In the 21st century, conflict moves at algorithmic speed and foresight equals firepower. Our agentic AI is purpose-built to compete with China—from cross-Strait conflict to gray zone coercion. Trained on the most mission-relevant datasets in defense, our technology models adversary behavior, simulates campaigns, and recommends the best course of action to decision makers. Our AI systems are some of the most trusted in the industry and actively used on the front lines of the Indo-Pacific to keep the peace and save lives.

Exceptional technology starts with exceptional people. Vannevar is a small agile team combining world-class engineers with veteran strategists who bring deep expertise in defense and tradecraft. We’re building a company defined by mission impact, user empathy, and disciplined growth. In just three years, we grew from $3M to $80M in ARR, achieved early profitability, and reached unicorn status—proving that disruption doesn’t require an ego, and staying power doesn’t mean standing still.

About the role

We’re looking for an experienced assistant to join our executive administrative support team under our Chief Growth Officer and 1-2 other senior leaders. 

What you'll do

• Manage calendars, arrange travel and schedule internal and external meetings for up to 3 C-suite & VP-level executives, which may include 10% of timeshare on personal administrative tasks  
• Build relationships and liaise with administrative personnel within the executive offices of our US Government clients 
• Own discrete administrative responsibilities that help grow our company, aligned to your principals’ priorities (e.g., organizing prep for major external meetings, operationalizing strategic offsites, supporting local office ops) 
• Identifying opportunities for improving candidate experience and scheduling efficiency 
• Assisting in the coordination of other offsites activities as needed 
• Operate with a sense of urgency.

What we’re looking for 

• 3+ years of administrative experience, including coordinating calendars across multiple stakeholders, booking travel for others, and organizing events 
• Past support of high-level executive principals 
• Familiarity with the military, US government, or tech startup spaces 
• Ownership mindset with a proven track record of executing against changing needs 
• Creativity and resourcefulness when faced with a roadblock 
• Strong professional written communication skills 
• A conscientious, thoughtful teammate 

We encourage candidates from all backgrounds to apply, even if you don't feel like you're a perfect fit. If you're passionate about contributing to our mission, we'd love to hear fr