Senior Data Scientist II

Company: Elsevier
Apply for the Senior Data Scientist II
Location: London
Job Description:

Overview

In this role you will design and deliver advanced AI, NLP, and generative AI solutions to power knowledge discovery and decision support for scientific data. You will build production-ready ML systems and collaborate across teams to turn complex challenges into scalable, impact-driven solutions. You’ll work with LLM-based workflows, RAG, and validation frameworks to ensure trusted performance. This role sits at the intersection of science, data, and engineering, delivering tangible user impact.

Pay / Benefits

  • wellbeing initiatives
  • shared parental leave
  • study assistance
  • sabbaticals

Responsibilities

  • Design, build, and evaluate AI/ML, NLP, and generative AI solutions for scientific and knowledge-discovery applications
  • Develop LLM-powered workflows and retrieval-augmented generation (RAG) systems for search, summarization, QA, and evidence-grounded insights
  • Build intelligent retrieval, ranking, recommendation, and decision-support capabilities using modern AI techniques
  • Integrate scientific metadata, ontologies, taxonomies, and knowledge assets into scalable AI workflows
  • Establish robust evaluation, experimentation, and monitoring frameworks for quality, trust, performance, and reliability
  • Write production-ready Python code and collaborate with engineering teams to deploy solutions at scale
  • Provide technical leadership and mentoring to support high-quality delivery and continuous improvement

Key requirements

  • Practical experience in data science, AI, ML, NLP, information retrieval, or related quantitative field
  • Hands-on experience building AI/ML, NLP, generative AI, and retrieval-based systems in applied or product-focused environments
  • Expertise with LLMs including fine-tuning, prompt engineering, grounding strategies, and responsible AI practices
  • Strong Python skills and solid ML fundamentals
  • Experience with large-scale text or content-rich datasets and modern AI/ML frameworks
  • Experience with RAG, semantic, vector, or hybrid search, and experimentation/evaluation to measure user impact
  • Familiarity with cloud platforms and modern software engineering practices
  • Strong communication, collaboration, and mentoring skills
  • Strong communication
  • Collaboration
  • Mentoring
  • Python
  • AI/ML frameworks
  • NLP

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Posted: September 30th, 2026