Software Engineer

Software Engineer – AI & Data Systems

£40,000 to £90,000 (DOE) + performance bonus

Permanent

Hybrid (1 day per week in the week, 4 days remote)

UK nationals only (no dual nationality) | 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. We’re 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 You’ll 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 We’re Looking For

• Degree in Computer Science, AI, or related field, or equivalent hands-on experience
• Driven and a self starter
• 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
• 25 days holiday excluding bank holidays (1 extra day for each year worked up to 28 days)
• Pension plan and healthcare cover