Data Engineer/GenAI Developer at Devonshire Hayes, London, 3 Months, £500 per day

If you are an experienced Data Engineer/GenAI Developer we have anew contract we would like to discuss with you.

Please note this role falls outside IR35 and will require some occasional onsite attendance in London.

We are seeking an experienced Data Engineer to design and build modern data solutions supporting enterprise AI and Generative AI use cases. This is a hands-on engineering position spanning trusted data pipelines, RAG and LLM services, APIs and production deployment.

What you'll do:

Design and optimise scalable ETL/ELT pipelines for structured, semi-structured and unstructured data.

Build production-ready RAG pipelines covering ingestion, chunking, embeddings, vector search, retrieval and grounding.

Integrate enterprise data with LLM and AI services through secure, reusable APIs and components.

Take AI use cases from prototype through production, including testing, CI/CD, monitoring and troubleshooting.

Work with data scientists, AI engineers, architects and business stakeholders to deliver measurable outcomes.

What you'll bring:

6-8 years' hands-on data engineering experience with strong Python and SQL skills.

Strong ETL/ELT and large-scale pipeline experience using Spark, Databricks, Kafka, Airflow or equivalent technologies.

Commercial experience with AWS, Azure or GCP and modern platforms such as Databricks, Snowflake or Microsoft Fabric.

Practical GenAI experience across LLMs, RAG, embeddings, vector databases and frameworks such as LangChain, LlamaIndex or Semantic Kernel.

Strong REST API, microservices, Docker, Git and CI/CD engineering practices, with experience deploying solutions into production.

A sound understanding of data quality, governance, security and responsible AI.

Useful additional experience:

Azure OpenAI, AWS Bedrock or Vertex AI; LLMOps/MLOps, evaluation and observability; agentic AI; complex enterprise or Legacy integration; financial services or insurance.

To apply, please submit an up-to-date CV highlighting production data engineering and GenAI delivery experience.