20 of 20 LlamaIndex Jobs in the UK

Data Scientist

Hiring Organisation
Oscar Technology
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £75,000 per annum
hands-on experience building models and data pipelines Proven experience working with Generative AI (LLMs, prompt engineering, embeddings) Experience using frameworks such as LangChain, LlamaIndex, or similar Experience integrating with model APIs (e.g. OpenAI or open-source alternatives) Exposure to cloud environments (AWS, GCP or Azure) Strong problem-solving skills ...

Associate Director, Data Science/Gen AI Lead - ER&I

Hiring Organisation
Jobleads-UK
Location
Birmingham, England, United Kingdom
emerging LLM architectures. GenAI Frameworks & Platforms: Proficient with Data & AI platforms (Azure AI, Vertex AI, Databricks, Hugging Face), advanced GenAI frameworks (LangChain, HF Transformers, LlamaIndex) & Agentic architectures (LangGraph, SmolAgents, PydanticAI) Vector DBs & RAG: Designed solutions using vector DBs & Retrieval Augmented GenAI (RAG) for knowledge applications. GenAI ModelOps/MLOps & Governance ...

Associate Director, Data Science/Gen AI Lead - ER&I

Hiring Organisation
Jobleads-UK
Location
Belfast, Northern Ireland, United Kingdom
emerging LLM architectures. GenAI Frameworks & Platforms: Proficient with Data & AI platforms (Azure AI, Vertex AI, Databricks, Hugging Face), advanced GenAI frameworks (LangChain, HF Transformers, LlamaIndex) & Agentic architectures (LangGraph, SmolAgents, PydanticAI) Vector DBs & RAG: Designed solutions using vector DBs & Retrieval Augmented GenAI (RAG) for knowledge applications. GenAI ModelOps/MLOps & Governance ...

Associate Director, Data Science/Gen AI Lead - ER&I

Hiring Organisation
Jobleads-UK
Location
City of Edinburgh, Scotland, United Kingdom
emerging LLM architectures. GenAI Frameworks & Platforms: Proficient with Data & AI platforms (Azure AI, Vertex AI, Databricks, Hugging Face), advanced GenAI frameworks (LangChain, HF Transformers, LlamaIndex) & Agentic architectures (LangGraph, SmolAgents, PydanticAI) Vector DBs & RAG: Designed solutions using vector DBs & Retrieval Augmented GenAI (RAG) for knowledge applications. GenAI ModelOps/MLOps & Governance ...

Senior Full Stack Engineer

Hiring Organisation
Prolo
Location
London Area, United Kingdom
Practical knowledge of RAG (Retrieval-Augmented Generation) architectures, including chunking strategies, vector embeddings, and similarity search Familiarity with LLM orchestration frameworks such as LangChain, LlamaIndex, or similar Experience designing and building agentic systems — tool-calling agents, multi-step reasoning, and human-in-the-loop workflows Understanding of MCP (Model Context ...

Staff Machine Learning Engineer

Hiring Organisation
Discovered MENA
Location
United Kingdom
techniques Hands-on experience with ML frameworks such as PyTorch, TensorFlow, or scikit-learn Experience with Generative AI tools like LangChain, Weaviate, LangGraph, or LlamaIndex Advanced programming skills in Python Competitive programming or data science background (e.g., ACM/ICPC, IOI/NOI, Kaggle) is a strong plus ...

ML Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day Negotiable
Insurance Domain experience is added advantage. Your Technical Toolkit AI/ML: Expert proficiency in Python , PyTorch/TensorFlow, and GenAI frameworks like LangChain, LlamaIndex, or CrewAI . Data Architecture: Hands-on experience with Vector Databases (e.g., Pinecone, Milvus, Weaviate) and SQL/NoSQL systems. Infrastructure: Proven track record ...

ML Engineer

Hiring Organisation
Randstad Technologies
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £500 per day
Insurance Domain experience is added advantage. Your Technical Toolkit AI/ML: Expert proficiency in Python , PyTorch/TensorFlow, and GenAI frameworks like LangChain, LlamaIndex, or CrewAI . Data Architecture: Hands-on experience with Vector Databases (e.g., Pinecone, Milvus, Weaviate) and SQL/NoSQL systems. Infrastructure: Proven track record ...

Senior AI Engineer

Hiring Organisation
Bright Purple Resourcing
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Permanent
Search, Pinecone, Qdrant, Weaviate and Chroma, and tuning embedding models for enterprise data. Building agentic systems using frameworks like LangGraph, Semantic Kernel, LangChain, LlamaIndex and AutoGen tool use, function calling, multi-step reasoning and orchestration. Integrating foundation models via Azure OpenAI, AWS Bedrock and open-weight model endpoints (Llama, Mistral ...

Senior AI Engineer

Hiring Organisation
Bright Purple Resourcing
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent
Search, Pinecone, Qdrant, Weaviate and Chroma, and tuning embedding models for enterprise data. Building agentic systems using frameworks like LangGraph, Semantic Kernel, LangChain, LlamaIndex and AutoGen tool use, function calling, multi-step reasoning and orchestration. Integrating foundation models via Azure OpenAI, AWS Bedrock and open-weight model endpoints (Llama, Mistral ...

Senior AI Engineer (Enterprise AI Platform) : £90k+ : London hybrid

Hiring Organisation
Hunter Bond
Location
London Area, United Kingdom
systems Required Skills & Experience Strong experience with Python and/or Node.js in production environments Hands-on expertise with LLM frameworks: LangChain, LlamaIndex Deep experience with PyTorch for model training and fine-tuning Proven experience with vector databases: Pinecone. Azure Vector Store Experience building voice-enabled AI systems using: Whisper ...

AI Agentic Engineer X 3

Hiring Organisation
Adria Solutions Ltd
Location
Manchester, United Kingdom
Employment Type
Permanent
Salary
£50000 - £85000/annum
systems and real-world applications. Key skills and experience include: Strong Python development experience Hands-on experience with LLMs and agent frameworks (e.g. LangChain, LlamaIndex, AutoGen or similar) Understanding of prompt engineering, RAG pipelines, and tool-using AI systems Experience working with APIs, data pipelines, and cloud platforms (AWS, Azure ...

AI Agentic Engineer X 3

Hiring Organisation
Adria Solutions
Location
Newcastle Upon Tyne, Tyne and Wear, North East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
systems and real-world applications. Key skills and experience include: Strong Python development experience Hands-on experience with LLMs and agent frameworks (e.g. LangChain, LlamaIndex, AutoGen or similar) Understanding of prompt engineering, RAG pipelines, and tool-using AI systems Experience working with APIs, data pipelines, and cloud platforms (AWS, Azure ...

Global IT GenAI Software Engineer Director - AI & Innovation

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
tuning Foundation Models including multimodal inputs and outputs. Strong experience working with key LLM models APIs (e.g. OpenAI, Anthropic) and LLM Frameworks (e.g. LangChain, LlamaIndex). Proficiency in generating and working with embeddings across variety of data formats. Understanding of embedding spaces and their applications in semantic search and information ...

AI Enigneer- 12 month contract

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £600 per day
Skills Python, TypeScript LLM frameworks (LangChain, LlamaIndex, OpenAI tools, Semantic Kernel) Vector databases (Pinecone, Weaviate, Chroma) Cloud (AWS/Azure/GCP) Docker, Kubernetes CI/CD, observability, testing for AI systems Experience Strong experience building LLM applications, RAG systems, or AI agents Understanding of prompt engineering, tool-calling ...

AI Engineer - Agentic AI & LLM Solutions (Hybrid)

Hiring Organisation
McCabe & Barton
Location
London, United Kingdom
Employment Type
Contract
software engineering best practices for AI systems Experience with specific LLM providers (OpenAI, Anthropic, Azure OpenAI) Familiarity with agent frameworks such as LangChain, LlamaIndex, AutoGen, or similar Experience building multi-agent systems and orchestration workflows Knowledge of prompt engineering and optimization techniques C#/.NET background for enterprise integration ...

Founding Engineer

Hiring Organisation
Tarka Talent
Location
London Area, United Kingdom
growth and engineering practice maturity → AI strategy conversations directly with senior partners and clients. Tech stack: Next.js · Node.js/Express · Azure · MS SQL · MongoDB · LlamaIndex · BullMQ · Redis · Microsoft Fabric · Power BI · GitHub Actions Who this is for: A senior or staff engineer ready for full ownership. You've shipped production ...

Senior Python/GenAI Developer

Hiring Organisation
Randstad Digital
Location
Belfast, County Antrim, Northern Ireland, United Kingdom
Employment Type
Permanent
Salary
£75,000
someone with deep hands-on experience building Retrieval-Augmented Generation (RAG) pipelines and Agentic frameworks . You should know how to use LangChain or LlamaIndex to create AI that can execute multi-step tasks. The Data Architect: Proficiency in Vector Databases is essential. You should be comfortable designing data persistence ...

Generative AI Architect

Hiring Organisation
MANNING SERVICES LIMITED
Location
London Area, United Kingdom
significant leadership roles involving solution architecture, team management, and project delivery. GenAI & Agentic Frameworks: Hands-on mastery of core GenAI frameworks (e.g., LangChain, LlamaIndex, Langfuse) and practical experience with Agentic AI frameworks and concepts (e.g., AutoGen, CrewAI, LangGraph, OpenClaw, NemoClaw, agent planning, tool use integration, multi-agent collaboration). ...

AI Engineer

Hiring Organisation
DXC
Location
Newcastle Upon Tyne, Tyne and Wear, North East, United Kingdom
Employment Type
Permanent
large language models for domain-specific applications. Implement advancedprompt engineeringstrategies. LeverageRetrieval-Augmented Generation (RAG)for enhanced contextual performance. Build intelligent agents using frameworks likeLangChain, LlamaIndex, CrewAI, AutoGen. Applyreinforcement learningtechniques includingQ-learning,policy gradients, andRLlib. Collaborate with cross-functional teams to integrate AI solutions into scalable products. Ensure best practices … Proven experience withTransformer modelsand LLMs (GPT, LLaMA, Mistral, Claude). Strong background infine-tuningandprompt engineering. Hands-on experience withRAG pipelines. Familiarity withAgent Frameworks(LangChain, LlamaIndex, CrewAI, AutoGen). Solid understanding ofreinforcement learningconcepts and tools (Q-learning, policy gradients, RLlib). Azure AI Engineer Associatecertification (or willingness to obtain). Bachelor ...