Full Stack Engineer

We're helping one of the world's most exciting, VC-backed defence technology companies hire a Full Stack Engineer to help build the software reshaping how western forces plan and run operations. Our client is bringing genuine AI capability to one of the world's most critical infrastructures - defence. Their command and control platform helps military forces plan and launch operations up to 4x faster, with battlefield-ready software that works even in denied communications environments. The product is already deployed with the French Army and German Bundeswehr, and is supporting operations in Ukraine. Having raised €31.5m to date - including a recent €20m Series A backed by exceptional investors from the tech and defence worlds - they're scaling fast in London and Paris. THE ROLE This is a hands-on, high-ownership role for an engineer who wants to shape a product from an early stage, not maintain someone else's roadmap. Entrepreneurial ownership over strategic products and features, with direct accountability for outcomes delivered to customers Building core features that help users plan operations and extract insight from complex data - including real-time visualisation and collaboration across maps, timelines and documents Working as a hands-on solo contributor and problem solver, while helping build and scale the wider engineering team WHAT YOU BRING A degree in Computer Science or a related field, or equivalent experience 5+ years working within cross-functional software development teams Experience shipping and iterating on production-grade software, professionally and/or in the open source community Ability to write robust, well-tested, well-designed code that gets deployed frequently Strong understanding of product development and navigating large codebases Comfortable working with Python (FastAPI), TypeScript/React and open-source LLMs Based in London or Paris, and open to working from the office WHAT'S ON OFFER Base salary £100,000 - £160,000, depending on experience Generous equity (0.1% - 0.3%) 100% coverage of travel and accommodation expenses for cross-office collaboration Minimum 3 months fully paid parental leave, plus childcare support 25 days holiday, plus bonus days for company closure Private medical insurance, subsidised gym membership, subsidised coaching/training Fertility support, including financial support for IVF, and menstrual leave Work-from-home allowance to cover office equipment Company off-sites, annually BASED IN LONDON OR PARIS. LONDON-BASED HIRES WILL TRAVEL TO PARIS MONTHLY TO COLLABORATE WITH THE WIDER TEAM (COSTS COVERED). THE INTERVIEW PROCESS TYPICALLY RUNS: INTRO CALL, CODING INTERVIEW, ONSITE IN PARIS, FINAL INTERVIEW WITH THE CEO. ABOUT HIGHER Higher is a specialist AI executive search firm. We work exclusively with companies building at the frontier of AI and deep tech. To be considered, please apply or reach out directly to Kelly Gauthier at [email protected].