24 of 24 LlamaIndex Jobs in London

AI Architect

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
£85,000
level AI/Gen AI platform/solutions with the client's existing enterprise stack. Hands-on mastery of core GenAI frameworks (e.g., LangChain, LlamaIndex) and practical experience with Agentic AI frameworks and concepts (e.g., AutoGen, CrewAI, LangGraph). Strong working knowledge and practical deployment experience on at least ...

AI Technical Architect

Hiring Organisation
Robert Walters
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 - £120,000 per annum
expertise in LLMs and RAG architectures , including models such as OpenAI, LLaMA, Mistral or Claude. Hands-on experience with GenAI frameworks such as LangChain, LlamaIndex, AutoGen, CrewAI or LangGraph . Experience designing AI systems using vector databases (e.g. Pinecone, Weaviate, FAISS). Solid understanding of prompt engineering, model tuning ...

Artificial Intelligence Engineer

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£75,000
LLMs (e.g., GPT series, Llama series, Mistral, Claude), including prompt engineering, fine-tuning, and evaluation. Hands-on experience with core GenAI frameworks (e.g., LangChain, LlamaIndex) and Agentic AI frameworks (e.g., AutoGen, CrewAI, LangGraph). Proficiency in MLOps/LLMOps tools (MLflow, Kubeflow, Docker, Kubernetes). Strong working knowledge and practical ...

Artificial Intelligence Engineer

Hiring Organisation
STACKSTUDIO DIGITAL LTD
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £75,000 per annum
LLMs (e.g., GPT series, Llama series, Mistral, Claude), including prompt engineering, fine-tuning, and evaluation. Hands-on experience with core GenAI frameworks (e.g., LangChain, LlamaIndex) and Agentic AI frameworks (e.g., AutoGen, CrewAI, LangGraph). Proficiency in MLOps/LLMOps tools (MLflow, Kubeflow, Docker, Kubernetes). Strong working knowledge and practical ...

AI Architect

Hiring Organisation
Charles Simon Associates Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £95,000 per annum
solutions using LLMs (e.g. OpenAI, Llama, Mistral, Claude) and vector databases (Pinecone, Weaviate, FAISS, etc.) Practical experience with GenAI frameworks such as LangChain, LlamaIndex, and agentic frameworks like AutoGen, CrewAI, LangGraph Strong Python expertise with AI/ML frameworks (PyTorch, TensorFlow) and NLP libraries Experience deploying AI solutions ...

AI Engineer Python Fullstack

Hiring Organisation
Robert Walters
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £90,000 per annum
building applications using LLMs (GPT, Llama, Mistral, Claude) including prompt engineering, fine-tuning and evaluation. Hands-on experience with GenAI frameworks such as LangChain, LlamaIndex and agent frameworks like AutoGen, CrewAI or LangGraph . Experience building RAG architectures with vector databases (Pinecone, Weaviate, FAISS). Strong understanding of MLOps/ ...

AI Architect

Hiring Organisation
Hirexa Solutions UK
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
their practical application. And AI FinOps & Model Routing Framework Expertise : Hands-on development experience with one or more orchestration frameworks (e.g., LangChain, LlamaIndex, Semantic Kernel). Thought Leadership & Open Source : Published work (whitepapers, patents), conference speaking engagements, or active contributions to relevant open-source projects. Certifications : Professional-level cloud certifications ...

GenAI Architect

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
their practical application. And AI FinOps & Model Routing • Framework Expertise: Hands-on development experience with one or more orchestration frameworks (e.g., LangChain, LlamaIndex, Semantic Kernel). • Thought Leadership & Open Source: Published work (whitepapers, patents), conference speaking engagements, or active contributions to relevant open-source projects. • Certifications: Professional-level cloud certifications ...

AI Engineer

Hiring Organisation
Charles Simon Associates Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £85,000 per annum
Hands-on experience with LLMs, RAG, vector databases, and GenAI frameworks Experience deploying solutions on cloud platforms (AWS, Azure, or GCP) Familiarity with LangChain, LlamaIndex, or agentic frameworks is highly valuable Strong grounding in software engineering best practices (testing, versioning, CI/CD, scalability) Mindset & Behaviours: Seek ownership, not just ...

GenAI Engineer

Hiring Organisation
Klarus
Location
City of London, London, United Kingdom
configure and manage secure GenAI development environments (Azure, AWS, GCP, or hybrid). Design and implement agent orchestration architectures using frameworks such as LangChain, LlamaIndex, Semantic Kernel, AutoGen, or custom event-driven systems. Integrate with enterprise systems, APIs, data stores and operational tooling. Establish governance frameworks covering PII detection ...

Artificial Intelligence Engineer

Hiring Organisation
LT Harper Recruitment Group
Location
London Area, United Kingdom
. Ability to move fast without compromising on code quality, testing, and operational excellence . Nice to have Experience with tools such as LangChain, LlamaIndex, Haystack, Hugging Face, Weaviate, CrewAI, AutoGen , or similar. Hands-on work with Retrieval Augmented Generation , AI agents, and agent orchestration frameworks. Experience working with unstructured ...

GenAI Engineer

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Contract
stakeholders to move AI prototypes into robust, scalable production environments. What You Bring Technical Excellence: Deep expertise in Python and frameworks like LangChain , LlamaIndex , or Haystack . Vector Expertise: Proven experience with vector databases such as Pinecone, Weaviate, or Milvus . Cloud Architecture: Strong proficiency in deploying AI solutions within ...

Staff AI Engineer - Fitness & Health

Hiring Organisation
Harnham
Location
London Area, United Kingdom
6+ years’ experience delivering production AI/ML systems Strong Python and SQL Proven hands-on GenAI experience (LLMs/RAG; LangChain/LlamaIndex/LangGraph-style tooling preferred) A track record of autonomous ownership - running projects with minimal supervision Strong stakeholder engagement: can influence and communicate with non-technical ...

AI Engineer - Consulting Innovation Team

Hiring Organisation
Harnham
Location
London Area, United Kingdom
base (flexible for strong profiles) • Working model: Hybrid, 3 days per week in London office • Tech stack: Python/JavaScript, GenAI (RAG, LangChain, LlamaIndex), agentic frameworks, Azure/AWS • Visa: No sponsorship available Interested? Please apply below. ...

AI Engineer

Hiring Organisation
Reward Gateway
Location
London, England, United Kingdom
Anthropic, Claude and OpenAI, with the ability to evaluate additional model providers and approaches. Familiarity with LLM tooling ecosystems such as LangChain or LlamaIndex, agentic AI frameworks, vector stores, tracing and logging tools, prompt management platforms, and evaluation frameworks. Strong data engineering capabilities, including dataset creation and validation, ETL development ...

Senior AI Engineer

Hiring Organisation
Copa Resourcing Group LTD
Location
City of London, London, United Kingdom
Employment Type
Permanent
Experience Strong commercial experience building LLM-driven systems Hands-on RAG architecture implementation Solid Python software engineering background Experience with frameworks such as LangChain, LlamaIndex or similar Exposure to vector databases and embedding workflows Cloud deployment experience (Azure advantageous) Experience delivering production systems at scale Role Type Both Permanent/ ...

Agentic AI Consultant Part Time

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £450 per day
Doing Designing and delivering structured training (2–3 days/week) on: Agentic AI patterns and frameworks Multi-agent orchestration Retrieval-augmented workflows LangChain, LlamaIndex, or similar agent toolkits Evaluation, monitoring, and safety Best practices for productionising agentic systems Advising engineering teams during hands-on sessions Helping define capability uplift ...

AI Architect - Consulting Innovation Team

Hiring Organisation
Harnham
Location
London Area, United Kingdom
100k base (flexible for strong profiles) • Working model: Hybrid, 3 days per week in London office • Tech stack: Python, JavaScript, GenAI (RAG, LangChain, LlamaIndex), agentic systems, Azure/AWS • Visa: No sponsorship available Interested? Please apply below. ...

Data Scientist (NLP & LLM Specialist)

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £565/day
Python and Machine Learning (ML) . NLP Expertise: 3-5 years of experience in Natural Language Processing. AI Knowledge: Familiarity with LangChain and LlamaIndex . The role involves using Large Language Models (LLMs) to build data models rather than building LLMs from scratch. Deployment: Must understand the deployment process ...

Junior Engineer

Hiring Organisation
Steadrock Capital Limited
Location
London, England, United Kingdom
experience in ML, transformers, NLP, or distributed systemsBonus (not required) Interest in real estate Interest in finance or quantitative modelling Experience building agents (LangChain, LlamaIndex, custom architectures) What We Offer Work directly with an NVIDIA DGX system Build AI systems from the ground up Very high autonomy Exposure to private ...

Artificial Intelligence Engineer

Hiring Organisation
Prolo
Location
City of London, London, United Kingdom
Python for production AI and strong technical fluency in TypeScript. AI Frameworks: Hands-on experience with some of the following LangChain/LangGraph, LlamaIndex, PyTorch , and FastAPI . Modern Infrastructure: Experience with AWS Bedrock/SageMaker and using Docker/Kubernetes to scale agent instances. RAG Expertise: Proven experience building ...

Advisory Engineer

Hiring Organisation
WorkGenius Group
Location
City of London, London, United Kingdom
immediate team. Core Skills Expert-level Python (async programming, performance optimization, SDK/library design). Deep understanding of agentic frameworks (LangChain, LangGraph, LlamaIndex, AutoGen or similar), including internal mechanics. Proven experience shipping production-grade agent systems serving real users at scale. Strong distributed systems design: state management, message queues ...

AI Engineer

Hiring Organisation
DXC
Location
City of London, London, United Kingdom
Employment Type
Permanent
models and LLMs (e.g., GPT, LLaMA, Mistral, Claude). Skills in fine-tuning, prompt engineering, and building RAG pipelines. Familiarity with Agent Frameworks (LangChain, LlamaIndex, CrewAI, AutoGen). Knowledge of reinforcement learning methods or tools (Q-learning, policy gradients, RLlib). Why Join Us? Work on AI solutions that make ...

Python AI Developer

Hiring Organisation
McGregor Boyall Associates Limited
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Nice to have: - Prior experience as a tech lead - Excellent academics - Your AI-specific knowledge will center around Anthropic Claude, LlangChain and LlamaIndex McGregor Boyall is an equal opportunity employer and do not discriminate on any grounds. ...