Full Stack Engineer

We are partnering with an early-stage, mission-driven company at the intersection of AI and national defence to appoint exceptional Full Stack Software Engineers . This fast-growing organisation is transforming mission-critical combat planning and operational decision-making by building next-generation AI-driven software tools for western forces. Founded in 2023, the company has already secured significant early-stage funding, including a $10m Seed round in 2024. The founding team is composed of ex-Palantir and ex-Open AI leaders. They combine deep sector knowledge with cutting-edge design and software engineering expertise to deliver state-of-the-art SaaS capabilities leveraging NLP, Generative AI, and reinforcement learning technologies. Position location (hybrid): London (Shoreditch) or Paris (Le Marais) We are seeking Full Stack Engineers who are passionate about using technology to solve complex, real-world problems with meaningful societal impact. You will be joining a highly collaborative and talented team that is revolutionising how operational planning is conducted at scale and speed. Primary Responsibilities: Entrepreneurial ownership over strategic products and features, and play a critical role in delivering outcomes to customers Build out core features that help users plan their operations or gain valuable insights into their data, including real time visualisation and collaboration on maps, timelines and documents Help build and scale the team Work as a hands-on individual contributor and problem-solver Requirements Degree in Computer Science or a related field, or equivalent experience 5 years of experience working with cross-functional software development teams Experience shipping and iterating on production-grade software components professionally and / or in the open-source community Ability to write robust, well tested, and well-designed code that frequently gets deployed to users Strong understanding of product development and navigating large codebases Located in London/Paris and open to working in office Tech Stack: Python FastAPI Typescript React Open source LLMs On premise deployments Benefits Currently Offered (likely to improve as company grows): 100% coverage for travel expenses Childcare support Min. 3 months fully paid parental leave 25 days holiday bonus days for company closure Subsidised lunches in office Gym membership Private medical insurance Subsidised coaching/training Work-from-home allowance to cover office equipment, desk, chair, monitor etc. Fertility support benefits, including financial support for IVF Menstrual leave/congé menstruel Company off-sites twice per year Interview process: Introductory interview – 45 mins Coding interview – 60 mins Onsite Design and Product interviews meet the team – half day in Paris Final interview with CEO – 30 mins This company is not currently offering sponsorship to foreign candidates. If you are not able to live and work in either Paris or London without sponsorship, please do not apply

Location: London, GB

Posted Date: 6/13/2025