Software Engineer
Our client, an innovative UK technology company is building a next-generation AI platform for defence and health applications. Their systems operate in highly regulated, mission-critical environments where reliability, security, and performance truly matter.
We’re looking for a Software Engineer to work on key platform components. This is a hands-on role — you’ll be writing code, shaping systems, and directly influencing the future of the platform.
This is a genuine ground-floor opportunity to shape both the technology and the engineering culture within a growing, mission-driven business.
What You’ll Be Working On
* Leading the design, development, and evolution of intelligent, distributed systems
* Architecting and building AI-driven capabilities, including:
* Large Language Models (LLMs)
* Retrieval-Augmented Generation (RAG)
* AI agents and orchestration workflows
* Designing and maintaining backend services and APIs (primarily Python, FastAPI / Flask)
* Building and scaling data pipelines and search systems using:
* ElasticSearch, Weaviate, Pinecone, and other vector databases
* Engineering secure, containerised architectures using Docker and Kubernetes
* Ensuring high availability, fault tolerance, and performance for mission-critical workloads
* Providing technical leadership and mentorship to other engineers
* Contributing to technical strategy, tooling choices, and engineering best practices
What We’re Looking For
Essential
* Active SC clearance
* Degree in Computer Science, AI, or a related field — or equivalent industry experience
* Strong background in Python or similar languages
* Significant experience with backend development, microservices, and distributed systems
* Hands-on experience with AI/ML systems, including LLMs, RAG, or vector databases
* Solid understanding of containerisation and orchestration (Docker / Kubernetes)
* Experience delivering secure, on-premise or regulated systems
* Proven ability to lead technically, mentor others, and take ownership of complex problems
Desirable
* Experience in defence, government, healthcare, or other regulated domains
* Familiarity with DevOps practices, CI/CD pipelines, and infrastructure as code
* Exposure to data engineering, ETL pipelines, or high-volume data processing
* Experience working in SME or start-up environments, comfortable wearing multiple hats
Salary: £40,000 - £60,000 (DOE) + Bonus + Benefits
Hybrid working – Office Locations in Winchester/Basingstoke