301 to 325 of 587 LLM Jobs in London

Role: AI Developer Location: London Duration: 5 Months Day rate: £540 - £585 Umbrella Only Minimum of 5 years UK residency required Role Description: We're looking for an experience AI developer with the skills below. They'll be building out More ❯

Senior LLM Engineer – London | Hybrid (2 days per week on-site, Bank area) My client is a long-established consultancy that originally built its reputation in data engineering and wider data transformation, and over the past few years has grown a strong applied AI practice. They tend to work with UK organisations where data security, reliability and explainability actually matter … group is around eight senior engineers, with backing to grow sensibly (not a hiring spree). This role sits within that team and is focused on designing and deploying LLM systems that make it into production, are cost-efficient, and work reliably in the real world. What you’ll be doing: • Owning the design and build of LLM-based systems … and privacy are real constraints • Working closely with both internal engineers and client teams to ensure what gets built actually lands well What they’re looking for: • Hands-on LLM experience beyond prototyping/notebooks • Strong Python and experience with PyTorch/Hugging Face/similar tooling • Experience deploying models into production (not just training them) • Familiarity with vector stores More ❯

Senior LLM Engineer – London | Hybrid (2 days per week on-site, Bank area) My client is a long-established consultancy that originally built its reputation in data engineering and wider data transformation, and over the past few years has grown a strong applied AI practice. They tend to work with UK organisations where data security, reliability and explainability actually matter … group is around eight senior engineers, with backing to grow sensibly (not a hiring spree). This role sits within that team and is focused on designing and deploying LLM systems that make it into production, are cost-efficient, and work reliably in the real world. What you’ll be doing: • Owning the design and build of LLM-based systems … and privacy are real constraints • Working closely with both internal engineers and client teams to ensure what gets built actually lands well What they’re looking for: • Hands-on LLM experience beyond prototyping/notebooks • Strong Python and experience with PyTorch/Hugging Face/similar tooling • Experience deploying models into production (not just training them) • Familiarity with vector stores More ❯

Expedia Group brands power global travel for everyone, everywhere. We design cutting-edge tech to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essential in driving our More ❯

Expedia Group brands power global travel for everyone, everywhere. We design cutting-edge tech to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essential in driving our More ❯

**Senior Python Developer** (Contract) Duration: 3 Months (Possibility for extension) Location: Remote (Occasional travel to London as and when required) Rate: A highly competitive Umbrella Day Rate is available for suitable candidates Role Profile We are seeking a highly skilled More ❯

pipelines (ETL/streaming/CDC) and entity resolution for graph population Author complex queries (Cypher, GSQL, AQL, SPARQL etc. depending on stack) Integrate knowledge graph retrieval & reasoning into LLM/RAG/GraphRAG systems Develop and evaluate graph ML/embedding models (link prediction, anomaly detection) Optimize graph performance, scaling, and query efficiency Liaise with client stakeholders: translate business … technology: Neo4j, TigerGraph, ArangoDB, OrientDB, or Stardog Proficiency in query languages (Cypher, GSQL, AQL, SPARQL, etc.) Strong background in pipelines, ETL, and entity resolution Exposure to integrating KG + LLM or RAG architectures Experience with graph algorithms, embeddings, or GNNs Cloud & production engineering literacy (AWS/Azure/GCP, containerization, CI/CD) Excellent communication skills — able to explain complex … graph/AI concepts to non-technical audiences ✅ Nice-to-Have/Bonus Assets Experience with GraphRAG or KG-backed LLM retrieval Semantic web/ontology skills (RDF/OWL/SHACL) Prior consulting or client delivery background Graph visualization/UI experience (Linkurious, Bloom, Ogma) Graph DB certifications (Neo4j, Stardog, etc.) High visibility & critical client impact Exposure to cutting More ❯

pipelines (ETL/streaming/CDC) and entity resolution for graph population Author complex queries (Cypher, GSQL, AQL, SPARQL etc. depending on stack) Integrate knowledge graph retrieval & reasoning into LLM/RAG/GraphRAG systems Develop and evaluate graph ML/embedding models (link prediction, anomaly detection) Optimize graph performance, scaling, and query efficiency Liaise with client stakeholders: translate business … technology: Neo4j, TigerGraph, ArangoDB, OrientDB, or Stardog Proficiency in query languages (Cypher, GSQL, AQL, SPARQL, etc.) Strong background in pipelines, ETL, and entity resolution Exposure to integrating KG + LLM or RAG architectures Experience with graph algorithms, embeddings, or GNNs Cloud & production engineering literacy (AWS/Azure/GCP, containerization, CI/CD) Excellent communication skills — able to explain complex … graph/AI concepts to non-technical audiences ✅ Nice-to-Have/Bonus Assets Experience with GraphRAG or KG-backed LLM retrieval Semantic web/ontology skills (RDF/OWL/SHACL) Prior consulting or client delivery background Graph visualization/UI experience (Linkurious, Bloom, Ogma) Graph DB certifications (Neo4j, Stardog, etc.) High visibility & critical client impact Exposure to cutting More ❯

Title: Data Scientist - AI Client: Home Office Rate: Up to £520 Contract: Inside IR35 Clearance: Active SC Clearance required (minimum 5 years' UK residency) We're seeking a skilled Data Scientist with AI experience to join a high-profile rogramme More ❯

Title: Data Scientist - AI Client: Home Office Rate: Up to £520 Contract: Inside IR35 Clearance: Active SC Clearance required (minimum 5 years' UK residency) We're seeking a skilled Data Scientist with AI experience to join a high-profile rogramme More ❯

Software Engineer – AI Startup – up to £300k + Equity We are working with an institutionally backed AI startup operating in stealth mode. The company builds large-scale LLMs and the in-house high-performance systems that train and deploy them More ❯

Software Engineer – AI Startup – up to £300k + Equity We are working with an institutionally backed AI startup operating in stealth mode. The company builds large-scale LLMs and the in-house high-performance systems that train and deploy them More ❯

AI Scientist Role Opportunity for an AI Scientist to join a scaling startup in the AI and Healthcare technology sector Salary up to £130k + Equity Paddington based (4–5 days per week in-office) Tech environment: Python | PyTorch | TensorFlow More ❯

AI Scientist Role Opportunity for an AI Scientist to join a scaling startup in the AI and Healthcare technology sector Salary up to £130k + Equity Paddington based (4–5 days per week in-office) Tech environment: Python | PyTorch | TensorFlow More ❯

At Synthesis we push the boundaries of what’s possible with Open Data. It’s a fast-paced, rapidly-changing environment at the intersection of data science, cultural analysis & brand consultancy. As a Senior Data Scientist at Synthesis, you will More ❯

At Synthesis we push the boundaries of what’s possible with Open Data. It’s a fast-paced, rapidly-changing environment at the intersection of data science, cultural analysis & brand consultancy. As a Senior Data Scientist at Synthesis, you will More ❯

Role: Engineering Lead/Engineering Manager Location: Hybrid – London Salary: Up to £130,000 + benefits About the Company We’re an award-winning technology company building cutting-edge products that power the future of audience engagement, insight, and brand More ❯

Role: Engineering Lead/Engineering Manager Location: Hybrid – London Salary: Up to £130,000 + benefits About the Company We’re an award-winning technology company building cutting-edge products that power the future of audience engagement, insight, and brand More ❯

Job Requisition ID # 25WD91668 AI Research Scientist/Engineer (Multimodal) Position Overview As an AI Research Scientist at Autodesk Research, you will be doing fundamental and applied research that will help our customers imagine, design, and make a better More ❯

Locai Labs is The British Foundational AI Company based in Paddington London. We are dedicated to building world class large language models at the forefront of cost and efficiency. Our mission is to advance cutting-edge AI from within the More ❯

Locai Labs is The British Foundational AI Company based in Paddington London. We are dedicated to building world class large language models at the forefront of cost and efficiency. Our mission is to advance cutting-edge AI from within the More ❯

Location : Cardiff or London Employment Type : Full time Location type : Hybrid Compensation : £80-100K About Us We're a fully funded AI startup, based in Hammersmith and soon opening our second office in Cardiff. At Planna, we build tools More ❯

Developer/Engineer (Python) to lead innovative AI initiatives in a fast-growing fintech environment. Joining a multi-disciplined technology team in London, you will take the reins on LLM integration, AI agent workflows, and AI-native tooling from day one. As an AI Engineer, you will have autonomy to shape AI products across all areas of the business, with … deliver high-value AI solutions. Required Experience & Skills: 2+ years software development, 1-2+ years in AI/ML development. Python (mandatory), Java or TypeScript (advantageous) ML fundamentals, LLM integration, prompt engineering, RAG workflows, AI frameworks and Fine-tuning. Mindset: Self-motivated, growth-oriented, passionate about emerging AI tools. Environment: Comfortable in a Windows/Microsoft environment, with strong … take ownership of AI initiatives and work on impactful projects, apply now to join a high-growth, forward-thinking team in London. Keywords: AI Developer, Python Developer, Machine Learning, LLM, RAG, Prompt Engineering, AI Tools, PyTorch, TensorFlow, Hugging Face, Fintech Jobs London, Trading Platform, Lead AI, AI Engineer, AI Automation, AI Careers, AI London Jobs More ❯

A fast-growing fintech company is hiring a Fullstack Developer(AI) to help build the next generation of intelligent, personalized financial platforms. This role blends modern front-end engineering with AI-powered workflows, automation, and human-centered design to deliver More ❯

Lead AI/ML Engineer – Computer Vision & GenAI London, UK | Hybrid We’re supporting a high-growth technology business at the forefront of AI innovation in sport and human performance. They’re looking for a Lead AI/ML Engineer More ❯