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.
We're looking for our first controller to help us bring order to chaos. You are ambitious and thrive in a fast-paced and quickly evolving environment, but are also detailed, process oriented, and organized. You are strategic. You’re focused on where we’re going and build the plans and processes to support our goals. You are analytically rigorous. You have a deep bias towards using data and analyses to drive decisions. Your second language is performance metrics and you have a deep understanding of how to continue improving those metrics. You’re excited to iterate. At this point we’re still learning. You’re energized by the prospect of creating new tools and processes to make the company operate more effectively, and not afraid to make changes when the first, or second, attempt can be improved.
As the Controller, you’ll work not only on traditional accounting tasks – monthly close process, accounts payable, payroll, financial reporting, tax planning, and compliance – but also play a critical role in building the processes and workflows to lay the groundwork for scaling an efficient and effective finance organization as the organization grows. This role reports to the Head of Finance.
Modernize the finance stack
Own the books, close, and controls
Partner on the decisions, not just the reports
Big plus (
Nice to have
Note to candidates: you'll either lead our QuickBooks → modern ERP migration, or land in a freshly-implemented new system — comfort building in a new ERP is essential either way.
We’re proud to offer competitive benefits that support our employees. Some key highlights of our benefits package include:
Vannevar is an equal opportunity employer, and qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender perception or identity, national origin, age, marital status, protected veteran status, or disability status.
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 from you!
IMPORTANT NOTICE
We are committed to protecting the privacy of all applicants. Official emails from the company will come from an @vannevarlabs.com domain. Under no circumstances will a legitimate representative from our company contact you to request passwords, financial information, or other sensitive personal data. Please be vigilant of potential scams.

We're redefining how America competes. Our products are used today by friendly forces around the world to shape adversary behavior, expose malign influence, and detect illicit activity.
We started in 2019 with a belief that the public servants who put themselves in harm’s way deserve better technology. The defense status quo wasn’t cutting it, so we built a team that obsesses over real-world mission impact. We iterate fast, deploy forward, and build with end users in mind.
Since then, we’ve grown from $3M to $80M in revenue, stayed profitable, and scaled to 200+ people, while raising just $12M. We value ownership, transparency, and teamwork. We build like our work matters, because it does. And we’re building a company where the best operators in the country come together to win, grow, and do the best work of their careers.
We’re expanding our edge across cyber, economic warfare, and next-gen sensing. If you want to help America win before and beyond the battlefield, we want you. Check out our open roles at https://vannevarlabs.com/careers/.