Senior Data Scientist II
On-site · London, England, United Kingdom
Job Summary
Senior Data Scientist II to design and deliver advanced AI, NLP, and generative AI solutions for scientific knowledge discovery and decision support; develop LLM-powered workflows and retrieval-augmented generation (RAG) systems for search, summarization, question answering, and evidence-grounded insight generation; build intelligent retrieval, ranking, recommendation, and decision-support capabilities; integrate ontologies and knowledge assets into scalable AI workflows; establish evaluation, experimentation, and monitoring frameworks to ensure quality, trust, performance, and reliability; write production-grade Python code and mentor teams to deliver scalable solutions.
Required Qualifications
- Practical experience in data science, AI, machine learning, NLP, information retrieval, or related quantitative field
- Hands-on experience building AI/ML, NLP, generative AI, and retrieval-based systems in applied/product-focused environments
- Expertise working with LLMs, including fine-tuning, prompt engineering, grounding strategies, and responsible AI practices
- Strong Python skills and solid machine learning fundamentals
- Experience working with large-scale text or content-rich datasets and modern AI/ML frameworks
- Experience with RAG, semantic, vector, or hybrid search, along with experimentation and evaluation approaches that measure user impact
- Familiarity with cloud platforms and modern software engineering practices
- Strong communication, collaboration, and mentoring skills
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