AI Engineeer

Senior AI Engineer Defence AI | LLMs | Command \& Control | SC Eligible Hybrid (London, Shoreditch - 1 day per week) Build the Future of AI-Enabled Defence Decision Making What if your AI systems weren't generating marketing copy or optimising ad clicks, but helping defence operators make mission-critical decisions when seconds matter? We're partnering with a leading technology company developing a next-generation AI platform that combines real-time data, advanced simulation capabilities, command \& control systems, and cutting-edge AI to deliver genuine operational advantage. This is not an AI research role. This is about building and deploying production-grade AI capabilities that solve real-world challenges in defence and security environments. You'll join a highly collaborative team of engineers, product specialists, and domain experts building a brand-new product from the ground up. As an early member of the team, you'll have significant influence over the architecture, technology choices, and future direction of the platform. Why This Opportunity Stands Out ✅ Build AI solutions that will be used by real operators in mission-critical environments ✅ Work on a greenfield product where your ideas have immediate impact ✅ Rapid development cycles with regular demonstrations, customer engagement, and industry events ✅ Solve genuinely complex technical problems across AI, data fusion, simulation, and decision support ✅ Work alongside exceptional engineers who value innovation, craftsmanship, and continuous learning The Role As a Senior AI Engineer , you'll lead the design, development, and deployment of AI-powered capabilities that sit at the heart of a next-generation defence platform. You'll take emerging AI concepts and turn them into scalable, reliable software that users can trust in demanding operational environments. Working closely with Product Managers, Engineers, and Defence SMEs, you'll help shape both the technical roadmap and the future of the product itself. What You'll Be Doing * Design and develop production-ready AI solutions using Large Language Models and modern AI architectures. * Build scalable applications in Python and/or TypeScript. * Design and implement RAG pipelines, agentic workflows, LLM orchestration frameworks, and evaluation methodologies. * Research emerging AI technologies and rapidly apply them to customer challenges. * Collaborate closely with Product and Engineering teams to transform requirements into deployable capabilities. * Mentor engineers and drive AI best practice across the wider team. * Champion AI-assisted development and agentic engineering approaches. * Ensure AI systems are robust, secure, explainable, and production-ready. * Contribute to customer demonstrations, integration events, and innovation workshops. What We're Looking For Essential * 3+ years' experience delivering AI-enabled products in commercial or operational environments. * Hands-on experience deploying LLM-powered applications into production. * Strong understanding of: * Retrieval Augmented Generation (RAG) * Prompt Engineering * Fine-Tuning * AI Evaluation Frameworks * Agentic Systems * LLM Orchestration * Strong software engineering background with Python and/or TypeScript. * Experience designing scalable, maintainable software systems. * Ability to balance experimentation with engineering rigour. * Strong communication and stakeholder management skills. * Eligibility to obtain and maintain UK SC Clearance. Desirable * Experience with C++ or Rust. * Defence, military, command \& control, modelling and simulation, or digital twin experience. * Experience integrating complex data sources into operational platforms. * Interest in supporting customer deployments, demonstrations, and industry events. What's on Offer * Hybrid working with one day per week in a modern Shoreditch office. * Private medical insurance. * Enhanced pension scheme. * Enhanced parental leave. * 25 days annual leave plus Christmas shutdown. * Learning \& Development budget. * Regular team socials and events. * Share options. * The opportunity to influence a product from day one. Join the Mission This is an opportunity to build AI that matters. If you're passionate about taking cutting-edge AI from concept to deployment and want to work on technology that delivers real-world impact in defence and security environments, we'd love to hear from you.