As Chief of Staff, you will work directly with the CEO and founding team to turn ambiguity into decisions. You will balance strategic analysis and operational support, preparing board-ready outputs, coordinating cross-functional priorities, and managing investor interactions. This high-impact role offers unmatched access to the core strategy of a scaling defense startup.
Chief of Staff at Gallium Defense
Join Gallium Defense in Paris as Chief of Staff and work alongside CEO Eric Fournier to reshape airspace security. We are building next-generation 3D radar systems to counter the escalating drone threat. This role offers an incredible 70/30 split between high-level strategy and operational execution, giving you a front-row seat to fundraising, product development, and military partnerships. If you have 2-5 years of experience in the VC ecosystem and a passion for deep tech, this is your chance to make a visible impact on the future of defense and see your work deployed in the field.
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Location
Paris, France
Compensation
Not Disclosed
Company
Gallium Defense
Role overview
Defense1-20 employees
Gallium Defense is a new start up that builds deployable, modular sensing systems designed for affordable protection, rapid field integration, scalable coverage, and cost-effective sensing solutions for defense and security use cases.
What you will do
- Conduct strategic analyses and competitive benchmarks to enable faster, data-driven decisions across business, product, and organizational domains.
- Drive cross-functional coordination by tracking priority initiatives, flagging blockers early, and ensuring seamless execution across the founding team.
- Prepare high-stakes materials for investor meetings, strategic partnerships, and customer conversations, ranging from briefing notes to board-level slide decks.
Who this is a fit for
- Possesses 2-5 years of experience in high-growth VC-led environments, either on the startup or investment side, with a track record of autonomy.
- Demonstrates an exceptional analytical mindset, capable of structuring complex problems and synthesizing data into clear, actionable, board-ready communications.
- Is fluent in French and English with a genuine passion for deep tech and defense, maintaining absolute discretion in a sensitive industry.
Why this role is remarkable
- Work directly with CEO Eric Fournier and the founding team, gaining an insider’s view of how a deep-tech defense company is built from the ground up.
- Join a mission-critical sector, building affordable, rugged 3D radar systems that provide a real answer to the rapidly growing global drone threat.
- Experience high-speed execution where your work moves from strategic concept to field-deployed systems used by military end-users in record time.
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If your profile’s a match and Gallium Defense wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.