Data Science Lead - LLM Agents

Data Science Lead role at Harnham in Brighton, United Kingdom. The scale-up has developed an agentic AI platform used by major telcos to help customers discover the right products through conversational AI. The product already powers 8k+ daily user interactions and is expanding into new industries, backed by strong growth and investment.

Role summary

You will lead a team of Data Scientists and an MLE while remaining 80% technical. Expect to set architectural direction, deliver end-to-end ML systems, and work directly with clients to shape product outcomes.

• Lead and mentor a growing DS/ML team (currently 3 DS + 1 MLE)
• Architect and deliver scalable GenAI/ML solutions
• Build agentic AI, RAG, NLP, and persona/sentiment modelling systems
• Translate business needs into robust technical solutions
• Deploy, optimise, and maintain production ML pipelines
• Liaise with clients and internal stakeholders on AI capabilities
• Working model: Hybrid – 1 day/week in Brighton (10 min walk from station, parking available)
• Tech stack: Python, PyTorch, LangChain, Snowflake, AWS, Docker

• Base up to £100k
• Life insurance
• Medicash allowance (annual contribution towards medical costs, not private medical)

• Mid-Senior level

• Full-time

• Engineering and Research
• Industries: Software Development and Technology, Information and Media

Interested? Please apply below.