Senior Data Scientist

Senior AI / Data Science Specialist

Hybrid – 3 days onsite | £80,000 + benefits

Overview

A major customer-focused organisation is expanding its AI capabilities and is building out two key streams:

1. Traditional ML/Data Science
2. A new and rapidly growing AI function

This role sits within the AI stream, operating alongside one existing AI specialist but at a slightly more senior and strategic level. You will help shape the organisation’s LLM strategy, conversational AI capabilities, and broader applied AI roadmap.

Key Responsibilities

• Design, build, and enhance LLM-driven tools, including RAG pipelines, embeddings, and prompt engineering.
• Support and expand the organisation’s chatbot capabilities.
• Work with unscripted data (text, call transcripts) to define key insights and model outputs.
• Lead and contribute to the development of evaluation frameworks to measure AI and LLM performance.
• Operate between AI engineering, ML engineering, and data science teams, helping define and influence wider AI strategy.
• Collaborate with product, technical, and commercial stakeholders to deliver high-impact AI solutions.

Tech Environment

• Python
• LangChain / Langfuse (open to other modern AI frameworks)
• Azure & Databricks
• Experience deploying AI/ML models into production
• Understanding of microservices architectures
• Strong MLOps practices
• Experience with conversational AI tools is a plus

About You

• 5+ years of experience across AI, machine learning, and data science
• Proven ability to build POCs and move quickly in an applied AI environment
• Broad exposure across LLMs, model deployment, and DS methodologies
• Strong communication skills with the ability to work with non-technical and senior stakeholders
• Comfortable operating in a hybrid model (3 days onsite)
• Experience in customer-focused or high-volume data environments is advantageous