Software Engineer AI & Data Systems £40,000 to £90,000 (DOE) performance bonus Permanent Hybrid UK nationals only | Must hold SC clearance About the Role An innovative UK technology company is developing a next-generation AI platform designed for defence and health applications. Were looking for a Software Engineer who thrives on learning quickly, solving complex technical problems, and building systems that make a real-world impact. This is a genuine ground-floor opportunity to influence both the technology and your career path within a growing, mission-driven business. What Youll Work On Design, build, and scale intelligent systems and microservices Develop AI-driven capabilities (e.g. LLMs, retrieval-augmented generation (RAG), and AI agents) Build and maintain APIs, data pipelines, and backend components (primarily Python, FastAPI, or Flask) Engineer robust, containerised architectures using Docker and Kubernetes Work with ElasticSearch, Weaviate, Pinecone, and other vector databases Help deliver high-availability, fault-tolerant systems for mission-critical workloads What Were Looking For Degree in Computer Science, AI, or related field, or equivalent hands-on experience Experience with LLMs, vector databases, or AI/ML frameworks Strong foundation in Python or similar programming languages Exposure to backend development for secure, on-premise systems Passionate programmer with a problem-solving mindset Quick learner who enjoys exploring new technologies Familiarity with microservice architectures and containerisation (Docker/K8s) Experience in AI, data engineering, or distributed systems Flexible, collaborative, and adaptable, comfortable wearing many hats in an SME environment Security Check (SC) cleared, British nationals only (no dual nationality) Why Join? Shape a pioneering AI platform with nationwide significance Mentorship and growth within a collaborative, high-performing team Work that genuinely matters with high-impact and real-world outcomes Hybrid working environment Competitive salary £40k£90k performance bonuses