Senior AI Engineer - #2083296

The Portfolio Group


Date: 4 days ago
City: London
Salary: £80,000 / year
Contract type: Full time
Work schedule: Full day
The Portfolio Group

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 engineers and contribute to technical best practices


Key Requirements:

  • Strong Python engineering experience
  • Commercial experience building production-grade AI/ML systems
  • Hands-on experience with RAG architectures and LLM workflows
  • Experience with LangChain, LangGraph, and/or Llama Index
  • Understanding of evaluation methodologies for generative AI
  • Experience working within scalable cloud environments (AWS preferred)
  • Ability to operate in a senior or technical leadership capacity


Desirable:

  • Graph-RAG experience
  • Databricks exposure
  • Experience deploying customer-facing AI systems


This is an excellent opportunity to join a forward-thinking organisation where AI is a genuine strategic priority and engineering quality is highly valued.




51752MS

INDLON

The Portfolio Group are acting on behalf of our client in recruiting for this position.

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