AI & Machine Learning Jobs in London

Research, design, and deploy robust machine-learning models; build and maintain scalable production ML pipelines; extract signals from large noisy structured and unstructured datasets. Requires a PhD or exceptional MSc in ML, Computer Science, or a related field, with strong ML theory and production experience. ...read more

Senior backend product engineering role at an alternative-investments technology platform. The listing was marked posted today and links to the employer’s Greenhouse application; verify current availability on the application page. ...read more

Build and operate large-scale backend and cloud systems for a cybersecurity platform processing high volumes of events. Employer Workday page labels the role Posted Today. ...read more

Design and deliver enterprise AI applications including Generative AI, RAG, agentic AI and intelligent automation. Employer career page lists the role as posted October 23, 2026. ...read more

Own end-to-end deployment of AI models into production with strategic customers, including technical scoping, system design, implementation, and production rollout. Role requires strong production engineering and customer-facing delivery experience; hybrid, three days in office, travel up to 50%. ...read more

Work with quantitative investment and trading firms to apply OpenAI models and Codex to research and development workflows. Build and debug code, evaluation systems, integrations, and production deployments; hybrid, three days in office. ...read more

Build and maintain development and production infrastructure platforms, cloud abstractions, networking, deployment systems, reliability, and security for OpenAI products. ...read more

Deliver scoped AI implementations with international public-sector customers, from use-case discovery and architecture through hands-on implementation, evaluation, adoption, and handoff. ...read more

Build ML systems involving multi-agent tooling, hybrid retrieval, embeddings, document understanding and production LLM operations. ...read more

Research and engineer reinforcement-learning systems for large language models, agentic tool use, reasoning, training infrastructure and evaluations. ...read more