About this role

Senior Data Scientist (AI) Harvey Nash Technology Musts: Python Senior Data Scientist (AI) | Remote | Finance & Insurance Client You will: Design and build ML and LLM-driven applications, with focus on RAG and workflow automation Architect agent-based AI solutions, including planning, tool usage, memory management and multi-agent coordination Develop models combining classical ML (LightGBM, XGBoost, Scikit-learn) with LLMs for generative tasks Build evaluation frameworks, including offline/online testing and human-in-the-loop feedback loops Integrate AI models securely with internal APIs, databases and SaaS systems Collaborate with data scientists, platform engineers and product managers on production-ready features You bring: 3–5 years delivering end-to-end ML/LLM projects, from data prep to production Expert-level Python and strong software engineering fundamentals Solid MLOps experience across the ML product lifecycle Hands-on experience with LLM frameworks, PydanticAI preferred, also LangChain, LangGraph, AutoGen or CrewAI CI/CD (GitHub Actions, Jenkins) and containerization (Docker, Kubernetes) Cloud experience, preferably Azure, ideally with MS AI Foundry or MosaicAI English fluency for client-facing work

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