Senior AI Engineer

About the role

The Portfolio Group is recruiting for an established organisation that is heavily investing in AI and generative search. As a Senior AI Engineer you will design and deliver production‑grade AI systems that prioritize accuracy, scalability and real‑world impact.

Key responsibilities

• Design and develop scalable Retrieval‑Augmented Generation (RAG) pipelines and generative AI workflows.
• Build solutions using LangChain, LangGraph and LlamaIndex.
• Implement retrieval strategies such as reranking, chunking and retrieval fusion.
• Create robust, maintainable agentic workflows.
• Contribute to experimentation, evaluation and AI quality frameworks.
• Support fine‑tuning, instruction tuning and model optimisation initiatives.
• Mentor junior engineers and promote technical best practices.

Required profile

• Strong Python engineering experience.
• Commercial experience building production‑grade AI/ML systems.
• Hands‑on experience with RAG architectures and LLM workflows.
• Ability to operate in a senior or technical leadership capacity.

Required skills

• Python
• LangChain
• LangGraph
• LlamaIndex
• AWS (cloud environment)
• Databricks (desirable)
• Graph‑RAG (desirable)