1 to 25 of 35 Permanent LlamaIndex Jobs in the UK

Senior AI Architect| London

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
models, and earlier architectures such as GANs and VAEs. Experience across text, code, image, and multimodal generation; advanced prompt engineering; orchestration frameworks (LangChain, LangGraph, LlamaIndex, Semantic Kernel). Hands‐on exposure to both API‐based (Claude, GPT, Gemini) and open‐source (Llama, Mistral) LLM‐based solution design. Agentic AI & Multi ...

Data & AI Engineer

Hiring Organisation
83zero Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £80,000 per annum
Python development skills Experience with Machine Learning frameworks such as TensorFlow, PyTorch or Scikit-learn Experience with Generative AI technologies including LLMs, LangChain or LlamaIndex Hands-on experience building RAG solutions and working with vector databases Experience with MLOps, CI/CD and containerisation Strong SQL skills and experience working ...

Junior Generative AI Application Developer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
generation), Prompt Engineering, Workflow Design, GenAI Optimization, Stylus Workspaces (In-house Gemini) Large Language Models (LLMs): Gemini, OpenAI, Claude, Llama, Local Models Frameworks: LangChain, LlamaIndex, Hugging Face Orchestration: LangGraph, Multi-Agent Systems Development Languages: Java, PythonFastAPI Retrieval-Augmented Generation (RAG): PostgreSQL, Vector DBs, Advanced Retrieval ML/DL Frameworks: PyTorch ...

Head of AI Solutions, COO Technology - MD (C16)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
scalable inference infrastructure, and vector stores. Programming & Frameworks: Strong Python proficiency; working knowledge of PyTorch or TensorFlow; applied experience with AI application frameworks (LangChain, LlamaIndex, or equivalents). Enterprise AI Architecture: Designing AI systems for regulated production environments: data security, model explainability, audit logging, access controls, and integration with legacy ...

Head of AI Solutions, COO Technology - MD (C16)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
scalable inference infrastructure, and vector stores* Programming & Frameworks: Strong Python proficiency; working knowledge of PyTorch or TensorFlow; applied experience with AI application frameworks (LangChain, LlamaIndex, or equivalents)* Enterprise AI Architecture: Designing AI systems for regulated production environments: data security, model explainability, audit logging, access controls, and integration with legacy systems ...

Senior AI Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Weaviate, or similar ecosystems. Hands-on experience with Retrieval Augmented Generation applications, AI agents & systems built around them. Experience using GenAI frameworks such as LlamaIndex, Crew AI, AutoGen, or similar agentic/LLM orchestration toolkits. Exposure to working with unstructured data (documents, conversations, images) & transforming it into usable structured formats. ...

Senior AI/ML Scientist

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Scientists. Skills: Strong proficiency in Python and experience with frameworks such as NumPy, Pandas, Scikit-learn, and modern Generative AI libraries (e.g., LangChain, LlamaIndex, Azure AI Foundry). Hands‐on experience with PyTorch, leading LLM libraries such as Hugging Face, LangChain, LangGraph, and LlamaIndex. Skilled in hypothesis formulation, defining evaluation ...

Senior Application Development Lead - Generative AI (GenAI), Vice President

Hiring Organisation
Jobleads-UK
Location
Belfast City District, Northern Ireland, United Kingdom
right model for use case, cost, and performance constraints. Hands‐on experience building Gen AI applications using modern frameworks such as LangChain, LangGraph, LlamaIndex, and Hugging Face, including agentic and multi‐step workflows. Proven experience designing and implementing Retrieval‐Augmented Generation (RAG) systems, including vector databases (pgvector, Pinecone, Weaviate, FAISS ...

Senior AI/ML Scientist

Hiring Organisation
Jobleads-UK
Location
United Kingdom
Scientists**Skills*** Strong proficiency in Python and experience with frameworks such as NumPy, Pandas, Scikit-learn, and modern Generative AI libraries (e.g., LangChain, LlamaIndex, Azure AI Foundry).* Hands-on experience with PyTorch, and leading LLM libraries such as Hugging Face, LangChain, LangGraph, and LlamaIndex.* Skilled in hypothesis formulation, defining ...

AI Technical Lead | Staff Software Engineer | Principal AI Engineer | GenAI | £80k-£130k

Hiring Organisation
167 Solutions Ltd
Location
Bristol, Avon, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £120,000 per annum
Platforms Experience with one or more: OpenAI Azure OpenAI Anthropic Claude Google Gemini AWS Bedrock Hugging Face LangChain LangGraph Semantic Kernel AutoGen CrewAI LlamaIndex Pinecone Weaviate Milvus ChromaDB Cloud Platforms Commercial experience with one or more: AWS Microsoft Azure Google Cloud Platform (GCP) Enterprise Data Data Engineering Data Platforms ...

Lead AI Engineer

Hiring Organisation
scrumconnect ltd
Location
City, Newcastle Upon Tyne, United Kingdom
Employment Type
Permanent
Salary
GBP 72,000 - 92,000 Annual
applied to AI/ML systems - Semantic search, vector/embedding infrastructure, and RAG pipeline construction - LLM orchestration and agentic frameworks (eg LangChain/LlamaIndex-style tooling, multi-agent patterns) - Prompt engineering and systematic evaluation/guardrail tooling (hallucination detection, safety testing) - LLMOps/MLOps - model versioning, deployment, monitoring ...

Senior AI Platform Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Points Experience with any of the following would be highly advantageous: AI gateways and model routing Prompt management platforms AI evaluation frameworks LangGraph, LangChain, LlamaIndex, DSPy, CrewAI or similar orchestration frameworks Vector databases and semantic retrieval Knowledge graphs or document understanding systems Building internal AI platforms used by multiple engineering ...

Senior AI Engineer - Consulting

Hiring Organisation
Deerfoot Recruitment Solutions
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
proposals Candidates should have strong experience in AI Engineering, MLOps and cloud-native AI platforms, alongside hands-on knowledge of technologies such as LangChain, LlamaIndex, MLflow, Kubernetes, Docker and CI/CD tooling. Applicants will ideally demonstrate: * Experience working in a major Consulting firm, and/or in industry ...

Senior Staff Generative AI Engineer – VP (IC, Hands-On)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
experience with **Generative AI concepts, Large Language Models (LLMs), transformer architectures, RAG, and advanced agentic frameworks** (e.g., LangChain, LangGraph, Google ADK. Optionally AutoGen, CrewAI, LlamaIndex, Semantic Kernel).* Deep comfort and practical experience with **containers and orchestration technologies, specifically OpenShift**.* Demonstrated ability to architect, develop, and deploy highly performant ...

Senior Staff Generative AI Engineer – VP (IC, Hands-On)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
experience with Generative AI concepts, Large Language Models (LLMs), transformer architectures, RAG, and advanced agentic frameworks (e.g., LangChain, LangGraph, Google ADK. Optionally AutoGen, CrewAI, LlamaIndex, Semantic Kernel). Deep comfort and practical experience with containers and orchestration technologies, specifically OpenShift. Demonstrated ability to architect, develop, and deploy highly performant, large ...

Lead Technical Architect (AI)

Hiring Organisation
scrumconnect ltd
Location
City, Newcastle Upon Tyne, United Kingdom
Employment Type
Permanent
Salary
GBP 76,000 - 85,000 Annual
essential, not just RAG in isolation: Semantic search, vector/embedding infrastructure, and retrieval architecture design LLM orchestration and agentic frameworks (eg LangChain/LlamaIndex-style tooling, multi-agent patterns) LLM evaluation, guardrails, and red-teaming tooling (hallucination detection, safety/bias testing) LLMOps/MLOps: model versioning, deployment pipelines ...

Senior AI Engineer

Hiring Organisation
The Portfolio Group
Location
London, United Kingdom
Employment Type
Permanent
Salary
£80000 - £100000/annum
workflows, evaluation frameworks, and LLM optimisation. Key Responsibilities: Design and develop scalable RAG pipelines and generative AI workflows Build solutions using LangChain, LangGraph, and LlamaIndex Implement retrieval strategies including reranking, chunking, and retrieval fusion Develop agentic workflows with a focus on robustness and maintainability Contribute to experimentation, evaluation ...

Agentic AI Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
Burgess Hill, West Sussex, United Kingdom
Employment Type
Permanent
Salary
£75000 - £80000/annum Market Rate/ Negotiable
engineering, context windows, and retrieval systems (RAG). What You Need Strong Python software development experience. Hands-on experience with GenAI frameworks ( LangGraph , LangChain , LlamaIndex, or CrewAI). Proven background in API design, tool-calling, and LLM orchestration. Interested? Apply today with your updated CV to set up an initial ...

Lead Agentic Engineer (MedTech)

Hiring Organisation
Adria Solutions Ltd
Location
Newcastle, Walker Gate, Tyne & Wear, United Kingdom
Employment Type
Permanent
Salary
£65000 - £80000/annum
systems Experience integrating APIs, data sources and cloud platforms (AWS, Azure or GCP) Bonus experience: Experience with AI agent frameworks such as LangChain, LlamaIndex, AutoGen or similar Background in healthcare, life sciences or regulated environments Experience with AI safety, evaluation or model monitoring Familiarity with distributed systems or event-driven ...

AI Integration Engineer

Hiring Organisation
Bennett and Game Recruitment LTD
Location
Carluke, Lanarkshire, Scotland, United Kingdom
Employment Type
Permanent
Salary
£55,000
C# Experience working with Microsoft Azure services including App Service, Functions, Storage, AI Search and Key Vault Understanding of AI frameworks such as Haystack, LlamaIndex or Semantic Kernel Familiarity with vector databases and Retrieval-Augmented Generation (RAG) architectures Experience integrating Microsoft 365 services using Graph API Strong analytical and problem ...

AI Solutions Consultant

Hiring Organisation
Artis Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 - £125,000 per annum
that combines stakeholder engagement, business problem-solving and hands-on technical delivery. Strong experience with Python and LLM agent frameworks such as LangChain, CrewAI, LlamaIndex or similar. Experience designing and implementing AI agents, automation workflows and AI-powered business solutions. Strong understanding of prompt engineering, Retrieval-Augmented Generation (RAG), tool ...

Principal Software Engineer (London)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
including platforms like Databricks for data processing and analytics Delivering production agentic systems, including RAG pipelines, vector search, and agentic frameworks such as LangChain, LlamaIndex, CrewAI, AutoGen, and n8n DevSecOps & DevOps MLOps Infrastructure as Code How You’ll Be Supported At 8th Light, we believe our people are our greatest ...

Senior AI Engineer| London

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
tasks (text, code, image, multimodal generation) and familiarity with advanced prompt engineering, structured outputs, function/tool calling, and orchestration frameworks like LangChain, LangGraph, LlamaIndex, and Semantic Kernel. Hands‐on exposure to API-based LLM providers (Claude, GPT, Gemini) and open‐source solutions (Llama, Mistral). Agentic AI & Orchestration : Hands … Llama, Mistral; multimodal and reasoning models; context windows, tokenization, fine‐tuning (LoRA/PEFT); RLHF/RLAIF concepts LLM application & agent frameworks: LangChain, LangGraph, LlamaIndex, Semantic Kernel, Haystack, CrewAI, AutoGen Interoperability & integration: MCP, function/tool calling, structured outputs, API integration, event‐driven and orchestration patterns Cloud AI platforms & model ...

Senior Field ML Engineer - Enterprise AI Deployments

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
systems and LLM applications. You’ll drive end-to-end development from discovery to production, work across voice, vision, and text, and leverage LangChain, LlamaIndex, and modern MLOps on AWS/Azure/GCP to deliver scalable, observable AI solutions at scale. #J-18808-Ljbffr ...

AI Engineer - Agentic AI

Hiring Organisation
Jobleads-UK
Location
Brighton, England, United Kingdom
Orchestration Frameworks: LangGraph, LangChain, AirFlow, etc Activities Integration of commercial and open-source LLMs into agentic workflows Agent and orchestration frameworks such as LangChain, LlamaIndex, Semantic Kernel, or CrewAI Model-level work using PyTorch and the Hugging Face ecosystem (embeddings, fine-tuning, inference tooling) Strong schema, validation, and state management ...