UK remote
AI Engineer Python
About this role
We are looking for a hands-on, senior-level Software Engineer with deep Python expertise to build reliable internal platforms and developer-enablement capabilities. This is an engineering-first role: strong software design, coding fluency and practical problem-solving are essential. You will apply AI in pragmatic ways-such as designing document search and conversational experiences using Retrieval-Augmented Generation (RAG)-while maintaining a high bar for engineering quality, security, scalability and operational excellence.
What You’ll Do Design, build and maintain production-grade Python services, libraries and developer tools. Apply modern Python practices, including packaging, type hints, asynchronous programming and maintainable API design. Create shared libraries, service templates and engineering standards that enable multiple internal teams to build consistently and efficiently. Build and evolve AI-enabled capabilities, including RAG-based search and conversational solutions over internal documentation and knowledge sources.
Define robust evaluation approaches for AI-assisted features, balancing usefulness, reliability, security and cost. Develop and maintain CI/CD pipelines and cloud-native delivery practices using Docker, Kubernetes and Terraform. Establish strong testing, code quality, documentation-as-code and secure software development practices. Improve application performance, scalability and reliability through profiling, benchmarking, observability and architectural improvements.
Implement monitoring, alerting and operational standards for platform services. Conduct thorough code reviews, mentor engineers and raise engineering standards across the team. Partner with engineering, product and scientific stakeholders to translate complex needs into practical, scalable technical solutions. Required Qualifications Significant hands-on experience as a Software Engineer, with strong, production-level proficiency in Python.
Equivalent depth in Java may also be considered. Demonstrated ability to write clean, maintainable and well-tested code, and to solve complex engineering problems independently. Strong experience with modern Python practices: packaging, dependency management, typing, async programming and service/API development. Experience designing and maintaining reusable libraries, service templates or internal developer platforms used by multiple teams.