17 of 17 OpenAI Jobs in the City of London

AI Engineer

Hiring Organisation
83zero Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£55000 - £70000/annum
Familiarity with Next.js or Vite Experience with Generative AI frameworks such as LangChain, LangGraph or CrewAI Experience working with Large Language Models such as OpenAI, Anthropic, Llama or Mistral Exposure to Retrieval Augmented Generation or AI agents is beneficial Experience with AWS or Azure Docker and containerisation experience, Kubernetes beneficial ...

Lead GenAI Full Stack Engineer / Managing Consultant

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£85,000
tools like LangChain, LangGraph, CrewAI, or Vercel AI (in Python or JavaScript). LLM experience: Practical experience with Large Language Models (LLMs) such as OpenAI, Anthropic, Mistral, or Llama, and tools like Ollama. Cloud Platforms: Proficiency in AWS or Azure for hosting and deployment. Containerization and Orchestration: Hands-on experience ...

AI Architect

Hiring Organisation
Charles Simon Associates Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£95,000
Architect/ML Architect/GenAI Architect Strong expertise in: Generative AI & LLMs, RAG (Retrieval-Augmented Generation), Agentic AI frameworks Hands-on with; LLMs (OpenAI, Llama, Claude, Mistral), Vector DBs (Pinecone, Weaviate, FAISS), Frameworks (LangChain, LlamaIndex, AutoGen, CrewAI, LangGraph) Strong Python + ML frameworks (PyTorch/TensorFlow) Experience deploying ...

Application Engineer

Hiring Organisation
Aimtech Recruitment Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
Angular or React ASP.NET Core, Entity Framework, REST APIs, Swagger/OpenAPI SQL Server, PostgreSQL, NoSQL databases, vector databases FastAPI and AI service integrations (OpenAI, Claude, Gemini) Docker, Kubernetes (AKS), Azure App Services Azure DevOps, Azure Boards, CI/CD pipelines API Management, OAuth2, JWT, audit logging Unit testing across ...

AI Software Engineer

Hiring Organisation
numi
Location
City of London, London, United Kingdom
scale production systems in AWS cloud environments. Advanced AI Fluency: Deep experience building agentic systems, implementing complex RAG architectures, and chaining multiple LLMs (OpenAI, Anthropic, etc.). You go far beyond basic API wrappers and understand context management, prompt engineering, and model behavior. AI-Assisted Workflow: You already ...

Commercial AI & Data Lead

Hiring Organisation
TalentPool
Location
City of London, London, United Kingdom
commercial strategy . The Mission Design and scale a commercial agent ecosystem , enabling smarter, faster decision-making across multiple domains. Tech Stack Snowflake | Python | OpenAI/Claude APIs | LangGraph/CrewAI | dbt | SQL What we’re looking for Experience building production AI/multi-agent systems (LangChain, LangGraph, CrewAI, AutoGen ...

Co-pilot consultant

Hiring Organisation
KPMG UK
Location
City of London, London, United Kingdom
integration and analytics. Exposure to AI/ML enablement in Microsoft ecosystem (e.g., Azure ML/AI Foundry/Azure OpenAI), particularly where analytics feeds AI-powered apps. Experience designing BI/data analytics solutions and enforcing architecture/documentation standards. The Person: Strong technical skills. Experience of delivering client ...

AI Platform Engineer

Hiring Organisation
Magnit Global
Location
City of London, London, United Kingdom
platforms and identity solutions (Azure, Oracle, EntraID). Experience developing REST APIs, integrating services, and implementing identity flows (OAuth2, tokens). Experience with Azure OpenAI, OpenAI SDK/models, and applying AI services to real-world use cases. Strong knowledge of IAM, security patterns, governance, and compliance requireme nts. ...

AI Engineer Analyst

Hiring Organisation
Cerberus Capital Management
Location
City of London, London, United Kingdom
software engineering, or data engineering. Programming experience (especially Python) Experience writing clean, maintainable Python code. Applied AI experience such as exposure to LLM APIs (OpenAI, Azure OpenAI, Anthropic, etc.) and experience with small personal or internship projects building agents or AI-driven workflows. Agentic frameworks in Python is a plus ...

Lead .NET/JS Developer - Perm - Creative Agency

Hiring Organisation
Lorien Resourcing Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
influence stakeholders and deliver under pressure Comfortable juggling multiple projects and 'controlled chaos' at pace Nice to have Experience integrating Azure AI Services or OpenAI APIs Python exposure, particularly in AI or data-driven contexts Low-code/no-code tools (e.g. Webflow) for rapid prototyping Client-facing experience presenting ...

Sales Director

Hiring Organisation
Indicium AI
Location
City of London, London, United Kingdom
600+ AI experts serving 50+ enterprise clients from 5 global locations, we work side-by-side with top partners - including Anthropic, Databricks, AWS, OpenAI, and Microsoft - to deliver modern AI with speed and measurable impact. The Opportunity We are seeking an experienced Client Director/Sales Director with a strong ...

Software Engineer ( Python )

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
LLMs) , including: Utilising both proprietary and open-source models Fine-tuning models to meet specific business use cases Delivering solutions via APIs, such as OpenAI APIs Collaborate closely with product managers, data scientists, and engineering peers to shape technical designs and delivery approaches. Apply strong problem-solving and analytical skills … pipelines. Advanced proficiency in Python and SQL . Practical experience working with large language models , including model fine-tuning and API-based integrations (e.g. OpenAI). Experience in solution and system design , particularly for data-driven and analytical platforms. Solid understanding of core software engineering principles , including version control, automated ...

Senior Data Engineer

Hiring Organisation
Axiom Software Solutions Limited
Location
City of London, London, United Kingdom
Senior Data Engineer – London Insurance Market | London (Hybrid) About the Role We are hiring an experienced Senior Data Engineer to join a high-impact transformation programme focused on modernizing data platforms within the London Insurance ...

AI Architect

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£600 - £635 per day
AI Architect Hybrid (London, Bristol, Leeds, Manchester) Initial 3 months with extensions Inside IR35 - Umbrella only Our client, a reputable organisation in the IT sector, is seeking a talented AI Architect to join their team ...

Software Engineer

Hiring Organisation
AG Talent
Location
City of London, London, United Kingdom
built at pace and evolve it into something robust and scalable. This will likely be a migration to TypeScript. Own the LLM layer across OpenAI, Gemini, and Anthropic, deciding what goes where and what comes next Build with and alongside AI. Agents, LLMs, and automation are core to the product ...

Solution Engineer - AI

Hiring Organisation
Anson McCade
Location
City of London, London, United Kingdom
Ability to assess use case viability and business value Cloud & Technology Experience across at least two of: AWS (Bedrock, SageMaker) Azure (Azure ML, Azure OpenAI) GCP (Vertex AI) OpenAI ecosystem Plus: Understanding of data engineering and big data concepts Awareness of cloud security, scalability, and cost optimisation (FinOps) 🌍 Why This ...

LLM Engineer

Hiring Organisation
Ultralytics
Location
City of London, London, United Kingdom
state-of-the-art computer vision technologies. Key responsibilities include: Developing and scaling robust LLM-powered applications using a variety of APIs, including OpenAI, Anthropic, and Gemini. Implementing and managing multi-API workflows using tools like LiteLLM to ensure flexibility and resilience. Building sophisticated Retrieval-Augmented Generation (RAG) systems, leveraging … . Expert-level proficiency in Python and deep learning frameworks, particularly PyTorch. Proven experience building and deploying applications with LLM APIs such as OpenAI , Anthropic , Gemini , and DeepSeek . Hands-on experience with the full RAG pipeline, including vector embeddings , rerankers , and data indexing in databases like MongoDB. Practical knowledge ...