Principal AI Data Engineer

Job in London, Greater London, W1B, England, UK

Listing for: Certain Advantage

Part Time position
Listed on 2026-08-21

Job specializations:

Software Development
AI Engineer (Applied/Software), Machine Learning/ ML Engineer, AI Reliability/ Performance Engineer

Principal AI Data Engineer

Certain Advantage is hiring for a Principal AI Data Engineer based in London.

This role is an initial contract until the end of the year and is hybrid, requiring 3 days per week onsite in London.

You'll be responsible for:

Developing AI, GenAI and Agentic AI prototypes using Azure AI Foundry, Copilot Studio, Databricks Mosaic AI and MLflow.
Building, optimising and evaluating Retrieval-Augmented Generation (RAG) solutions using prompt engineering and embedding models.
Designing and deploying AI agents using frameworks including Lang Chain, Lang Graph and Auto Gen.
Delivering production-ready GenAI applications for commercial teams within Trading & Supply.
Building scalable AI workflows on Databricks using Mosaic AI, MLflow, Genie and Agent Bricks.
Applying Dev Ops best practices through CI/CD pipelines, Git Hub workflows and automated testing.
Designing evaluation frameworks to benchmark, test and improve GenAI system performance and reliability.

The Individual

Strong expertise with Databricks, including Delta Lake, Unity Catalog, DLT and MLflow.
Deep knowledge of Large Language Models including GPT, Llama, Claude and Mistral.
Experience building and deploying GenAI, RAG and Agentic AI solutions in enterprise environments.
Strong programming skills ...

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