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Senior AI Engineer

📍 Location
London
⏰ Job Type
Full-time
📅 Posted
July 15, 2026

About the Role

We are partnering with an established organisation currently investing significantly in its AI and generative search capabilities. They are looking to appoint a Senior AI Engineer to play a key role in designing and delivering production-grade AI systems focused on accuracy, scalability, and real-world impact.

This position sits within a growing AI function and will focus heavily on Retrieval-Augmented Generation (RAG), agentic workflows, evaluation frameworks, and LLM optimisation.

Key Responsibilities:

Design and develop scalable RAG pipelines and generative AI workflows
Build solutions using LangChain, LangGraph, and LlamaIndex
Implement retrieval strategies including reranking, chunking, and retrieval fusion
Develop agentic workflows with a focus on robustness and maintainability
Contribute to experimentation, evaluation, and AI quality frameworks
Support fine-tuning, instruction tuning, and model optimisation initiatives
Mentor junior enginee...

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