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Senior Agentic AI Engineering Jobs in London

Senior agentic AI engineers lead technical decisions on agent architecture, design evaluation frameworks, optimize retrieval pipelines, and mentor other engineers building LLM-powered systems. These are positions in London building AI agents, RAG systems, and LLM-powered products.

42 jobs found

Numinous logo
Senior Python Engineer: AI Agents & Forecasting

Numinous

£80K - £120K/yrLangChainLangGraph+2 more
🇬🇧
2026-06-28
Databricks logo
AI Engineer - FDE (Forward Deployed Engineer)

Databricks

RemoteDSPyLangChain+4 more
🇬🇧
2026-05-19
Electric Twin logo
Research Engineer (AI Engineer)

Electric Twin

£80K - £120K/yrLangChainHugging Face+1 more
🇬🇧
2026-06-06
Sierra logo
Developer Relations Engineer

Sierra

£140K - £220K/yrLangGraphMCP
🇬🇧
2026-05-19
OpenAI logo
Forward Deployed Engineer - London

OpenAI

OpenAI Agents SDKOpenAI API
🇬🇧
2026-05-19
OpenAI logo
Forward Deployed Software Engineer - London

OpenAI

OpenAI Agents SDKOpenAI API
🇬🇧
2026-05-19
Fin (Intercom) logo
Senior Product Engineer, AI

Fin (Intercom)

🇬🇧 🇮🇪
2026-06-28
Forter logo
Senior Software AI Engineer

Forter

MCP
🇬🇧
2026-06-16
Justworks logo
Senior Software Engineer, AI (Remote UK)

Justworks

£132K - £170K/yrRemoteElasticsearch
🇬🇧
2026-05-21
Decagon logo
Senior Research Engineer

Decagon

£200K - £300K/yrOpenAI API
🇬🇧
2026-05-19
OpenAI logo
AI Deployment Engineer - Startups

OpenAI

OpenAI API
🇬🇧
2026-05-19
Intercom logo
AI Infrastructure Engineer

Intercom

OpenAI API
🇬🇧
2026-05-19
OpenAI logo
AI Deployment Engineer | Codex

OpenAI

OpenAI API
🇬🇧
2026-05-19
Intercom logo
Senior Forward Deployed Engineer

Intercom

OpenAI API
🇬🇧
2026-05-19
OpenAI logo
Software Engineer, Codex Ecosystem & Enterprise

OpenAI

OpenAI API
🇬🇧
2026-05-19
Sierra logo
Software Engineer, Agent

Sierra

£150K - £315K/yr
🇬🇧
2026-05-19
PhysicsX logo
Senior AI Engineer - Applied

PhysicsX

ExpiredLangChainLangGraph+4 more
🇬🇧
2026-05-06
PhysicsX logo
Senior AI Engineer - Platform

PhysicsX

ExpiredLangChainLangGraph+5 more
🇬🇧
2026-05-06
Ebury logo
Senior Full-Stack Engineer - AI Agent Platform

Ebury

ExpiredLangChainLangGraph+4 more
🇬🇧
2026-04-24
Mubit logo
Founding Engineer

Mubit

ExpiredAutoGenCrewAI+1 more
🇬🇧
2026-04-10
Adclear logo
Senior Fullstack Engineer

Adclear

Expired£75K - £95K/yrLangChainLangGraph
🇬🇧
2026-04-06
Cititec Talent logo
Senior AI Engineer

Cititec Talent

Expired£132K - £154K/yrClaude Agent SDKLangChain+3 more
🇬🇧
2026-04-02
Charles Simon Associates Ltd logo
AI Architect (Generative & Agentic AI)

Charles Simon Associates Ltd

Expired£80K - £95K/yrAutoGenCrewAI+10 more
🇬🇧
2026-04-01
Accenture logo
GenAI & Agentic Commerce Engineer

Accenture

ExpiredLangChainLlamaIndex+3 more
🇬🇧
2026-04-01
Intec Select logo
AI Engineer - LLM & Agentic Systems

Intec Select

Expired£110K - £149K/yrLangChainLangGraph+1 more
🇬🇧
2026-04-01
Celonis logo
Senior Applied AI Engineer (Pre-Sales) - Public Sector Transformation

Celonis

ExpiredLangChainLlamaIndex+1 more
🇬🇧
2026-03-31
Celonis logo
Senior Applied (AI) Engineer - Public Sector

Celonis

ExpiredLangChainLlamaIndex+3 more
🇬🇧
2026-03-31
Luxoft (DXC Technology Company) logo
GenAI Engineer

Luxoft (DXC Technology Company)

ExpiredLangChainChroma+6 more
🇬🇧
2026-04-01
Vercel logo
Software Engineer, AI SDK

Vercel

Expired$196K - $294K/yrVercel AI SDK
🇩🇪 🇬🇧
2026-04-01
Google logo
Senior Software Engineer, Agentic Infrastructure, GBO Engineering

Google

ExpiredLangChainGemini
🇬🇧
2026-04-01
Vercel logo
Forward-Deployed Engineer

Vercel

ExpiredVercel AI SDKMCP
🇩🇪 🇬🇧
2026-04-01
Cohere logo
Member of Technical Staff, MLE (North)

Cohere

ExpiredJAXTensorFlow
🇨🇦 🇫🇷 🇬🇧+1
2026-05-06
Cohere logo
Member of Technical Staff, Agent Code

Cohere

ExpiredCohere
🇬🇧
2026-04-24
PolyAI logo
Senior Full Stack Engineer (Must be based in UK)

PolyAI

Expired
🇬🇧
2026-04-24
Cohere logo
Member of Technical Staff, Next Generation Agents

Cohere

ExpiredRemoteCohere
🇬🇧
2026-04-24
Anthropic logo
Applied AI Engineer

Anthropic

Expired£225K - £240K/yrMCP
🇬🇧
2026-04-02
Aurora logo
Founding Product Engineer (AI & Agentic Systems)

Aurora

Expired£150K - £170K/yr
🇬🇧
2026-04-02
Model ML logo
Applied AI Engineer

Model ML

Expired$100K - $200K/yr
🇬🇧
2026-04-02
Anthropic logo
Forward Deployed Engineer, Applied AI (UK)

Anthropic

Expired£225K - £255K/yrMCP
🇬🇧
2026-04-02
Stealth AI Startup logo
Applied AI Engineer (LLM)

Stealth AI Startup

Expired£130K - £140K/yr
🇬🇧
2026-04-01
Contentful logo
Senior Machine Learning Engineer (f/m/d)

Contentful

Expired
🇬🇧
2026-03-31
Clean Energy Infrastructure Startup (via Transparent Technology) logo
Founding AI Engineer

Clean Energy Infrastructure Startup (via Transparent Technology)

Expired£120K - £150K/yr
🇬🇧
2026-03-31
View all 42 jobs with filters →
Live market data17 priced listings

Salary insights for Senior Agentic AI Engineering Jobs in London

Pulled from active listings on this page that publish a salary range.

Average range (GBP)

£135,267 – £179,500

mean min to mean max

Median range (GBP)

£132,000 – £154,000

p50 min to p50 max

Listings with salary

17

explicit salary ranges only

By seniority

  • Senior£135,267 – £179,500

    17 listings · GBP

Full seniority breakdown
SeniorityAvg rangeCurrencyListings
Senior£135,267 £179,500GBP17

By location type

  • Hybrid£118,000 – £144,167

    10 listings · GBP

  • Onsite£167,000 – £245,000

    6 listings · GBP

Full location-type breakdown
Location typeAvg rangeCurrencyListings
Hybrid£118,000 £144,167GBP10
Onsite£167,000 £245,000GBP6

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