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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Data Scientist II - Generative AI / RAG... - **Company:** RELX Group plc - **Location:** Alexandria, VA, United States - **Experience:** Expert - **Salary:** $110,100.0 - $183,500.0 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Artificial Intelligence, Code Review, Continuous Integration, Software Debugging, Document Retrieval, Information Retrieval, Python (Programming Language), Search Algorithms, Machine Learning, Modular Design, Search Technologies, Apache Solr, Delivery Pipeline, Large Language Models, Generative AI, Software Version Control - **Published:** June 12, 2026 - **Apply:** https://www.juju.com/job/00000000g7fg8a ## About the Role + Proven experience building and improving Generative AI and LLM-based solutions in production or near-production settings + Strong experience with RAG frameworks, retrieval-based AI architectures, and agentic workflows + Advanced Python skills, including modular design, testing, debugging, and clean coding practices + Strong understanding of information retrieval, text search methods, and retrieval architectures + Hands-on experience with OpenSearch, Solr, or similar search platforms + Experience with embeddings, semantic retrieval, reranking, and relevance optimization + Proven ability to work effectively in a monorepo environment with disciplined version control and code review practices + Experience collaborating in cross-functional teams and contributing to CI/CD and deployment workflows Work in a Way That Works for You We promote flexible ways of working that support collaboration, focus, and personal wellbeing, while meeting the needs of our teams and customers. Working Pattern This role supports flexible working arrangements, balancing individual productivity with team collaboration. ## Description Are you excited to shape the next generation of AI-powered drafting and search experiences at scale? Do you want to work on advanced Generative AI systems that turn complex information into clear, trusted insights? About our Team You will join a multidisciplinary team of data scientists, engineers, and product partners focused on building intelligent, reliable, and responsible AI solutions for legal and business professionals. We work collaboratively, value thoughtful experimentation, and prioritize high-quality, production-ready outcomes. About the Role As a Senior Data Scientist II, you will design and improve Generative AI, Retrieval-Augmented Generation (RAG), and agentic RAG systems that power drafting, search, and reasoning use cases. You will focus on retrieval quality, evaluation, and production-grade machine learning components, working closely with cross-functional partners to deliver measurable improvements in relevance, accuracy, and user trust. Responsibilities + Design, build, and optimize Generative AI, RAG, and agentic RAG systems for drafting, search, and reasoning use cases + Improve LLM-generated outputs through prompt design, retrieval optimization, evaluation, and experimentation + Develop and maintain scalable data science and machine learning components for production environments + Build and enhance retrieval pipelines, including query processing, document retrieval, ranking, reranking, and grounding strategies + Apply text search and relevance tuning techniques using platforms such as OpenSearch and Solr + Use embeddings, hybrid retrieval, semantic search, and reranking methods to improve answer quality and system performance + Write high-quality, maintainable, production-ready Python code following strong software engineering practices + Collaborate closely with partners across data science, engineering, product, and domain teams ## Related Videos - [RAG's Not Dead, You're Just Using It Wrong! - Phil Nash](https://www.wearedevelopers.com/videos/1906-rag-s-not-dead-you-re-just-using-it-wrong-phil-nash) - [Your imaginations is (no longer) the limit: how Generative AI empowers people to be creative](https://www.wearedevelopers.com/videos/741-your-imaginations-is-no-longer-the-limit-how-generative-ai-empowers-people-to-be-creative) - [Are Code Reviews Worth It? Insights from 16 Years of Review Data](https://www.wearedevelopers.com/videos/1135-are-code-reviews-worth-it-insights-from-16-years-of-review-data) - [Carl Lapierre - Exploring Advanced Patterns in Retrieval-Augmented Generation](https://www.wearedevelopers.com/videos/1235-carl-lapierre-exploring-advanced-patterns-in-retrieval-augmented-generation) - [The shadows that follow the AI generative models](https://www.wearedevelopers.com/videos/624-the-shadows-that-follow-the-ai-generative-models) - [Build a CI/CD pipeline to automate code reviews and ensure code quality](https://www.wearedevelopers.com/videos/349-build-a-ci-cd-pipeline-to-automate-code-reviews-and-ensure-code-quality) ## Related Articles - [Got AI ideas but no money? Here are 10 free ways to level up your AI skills with Google Cloud](https://www.wearedevelopers.com/magazine/600-got-ai-ideas-but-no-money-here-are-10-free-ways-to-level-up-your-ai-skills-with-google-cloud) - [Graph and AI Trends 2026: Why Is AI Running but Not Yet Delivering?](https://www.wearedevelopers.com/magazine/680-graph-and-ai-trends-2026-why-is-ai-running-but-not-yet-delivering) - [Coffee with Developers - Maria Apazoglou - Making AI understandable for all in production](https://www.wearedevelopers.com/magazine/475-coffee-with-developers-maria-apazoglou-making-ai-understandable-for-all-in-production) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [What Are Large Language Models?](https://www.wearedevelopers.com/magazine/304-what-are-large-language-models) - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer)