> Markdown version of [/jobs/ext/3026824-senior-principal-machine-learning-scientist-scientific-reasoning-models-ai-for-drug-discovery](https://www.wearedevelopers.com/jobs/ext/3026824-senior-principal-machine-learning-scientist-scientific-reasoning-models-ai-for-drug-discovery). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior / Principal Machine Learning Scientist, Scientific Reasoning Models, AI for Drug Discovery - **Company:** Experis - **Location:** London, UK - **Experience:** Expert - **Salary:** £143,000.0 - £182,000.0 - **Contract:** Temporary contract - **Skills:** Artificial Intelligence, Machine Learning, Natural Language Processing, Recommender Systems, Azure Machine Learning - **Published:** September 22, 2026 - **Apply:** https://nlppeople.com/apply/1wpa ## About the Role 4+ years' experience in ML/AI engineering (LLMs, recommender systems, optimisation, or similar)Proven hands-on experience building LLM agents, RAG systems, or orchestrated AI workflows in productionStrong Python (with PyTorch, TensorFlow, or similar frameworks)Experience with agent frameworks (LangChain, LangGraph, AutoGen, or similar)Solid understanding of APIs, backend services, and microservices architecturesExperience working with cloud platforms (AWS, GCP, or Azure) and containerised systems (Docker, Kubernetes)Familiarity with event-driven or serverless architecturesExperience with CI/CD pipelines, testing, and infrastructure as codeComfortable debugging complex, distributed AI/ML systemsExperience running and analysing large-scale experiments and performance metrics (latency, accuracy, cost)Exposure to monitoring/observability tools for production systems Nice to Have: Experience with multi-agent systems or distributed AI architecturesExperience optimising LLM usage across multiple providers (cost/performance trade-offs)Familiarity with vector databases (Pinecone, Weaviate, OpenSearch, etc.)Experience integrating AI systems into enterprise platforms or business workflows, Senior (5+ years of experience) Tagged as: Industry, Machine Learning, NLP, Recommendation System, United Kingdom ## Related Videos - [Introduction to Azure Machine Learning](https://www.wearedevelopers.com/videos/368-introduction-to-azure-machine-learning) - [LLMs in the wild: Building an AI agent that survives production](https://www.wearedevelopers.com/videos/100319-llms-in-the-wild-building-an-ai-agent-that-survives-production) - [100 million days in Vienna: A story of APIs & AI in tourism.](https://www.wearedevelopers.com/videos/93-100-million-days-in-vienna-a-story-of-apis-ai-in-tourism) - [How We Built a Machine Learning-Based Recommendation System (And Survived to Tell the Tale)](https://www.wearedevelopers.com/videos/752-how-we-built-a-machine-learning-based-recommendation-system-and-survived-to-tell-the-tale) - [What non-automotive Machine Learning projects can learn from automotive Machine Learning projects](https://www.wearedevelopers.com/videos/397-what-non-automotive-machine-learning-projects-can-learn-from-automotive-machine-learning-projects) - [Data Analytics with Microsoft Fabric: End-to-End Use Case with Data Agents](https://www.wearedevelopers.com/videos/1547-data-analytics-with-microsoft-fabric-end-to-end-use-case-with-data-agents) ## Related Articles - [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) - [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) - [What Industries Outside of AI Are Hiring The Most AI Experts?](https://www.wearedevelopers.com/magazine/98-what-industries-outside-of-ai-are-hiring-the-most-ai-experts) - [MLOps And AI Driven Development](https://www.wearedevelopers.com/magazine/82-mlops-and-ai-driven-development) - [MLOps – What’s the deal behind it?](https://www.wearedevelopers.com/magazine/125-mlops-what-s-the-deal-behind-it)