1 to 25 of 462 OpenAI Jobs in London

Lead Agentic AI Architect

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£710/day inside ir35
Architecture | RAG | LLM Applications | Prompt Engineering | Responsible AI | AI Evaluation Frameworks LangChain | LangGraph | Semantic Kernel | AutoGen Cloud & AI Platforms Azure AI Foundry | Azure OpenAI | AWS Bedrock | SageMaker | Google Vertex AI | Hybrid/Multi-Cloud Engineering & Platform Python | Java | Scala | TypeScript | SQL | Kubernetes | Docker | Terraform | Bicep | CI/CD | Infrastructure ...

Senior AI Engineer

Location
Greater London, England, United Kingdom
Prompt Engineering and Prompt Optimization* Model Evaluation and Observability Frameworks* LLM Fine-tuning and Adaptation Techniques* Hands-on experience with Azure AI Foundry, Azure OpenAI Service, Model Context Protocol (MCP), and modern AI orchestration frameworks.* Strong programming skills in Python, with experience developing scalable APIs, AI services, and automation solutions. ...

Principal Cloud Engineer (Terraform), London

Location
Greater London, England, United Kingdom
learn, XGBoost, Prophet), experience building and deploying models, and familiarity with MLflow or equivalent MLOps tooling. Generative AI: practical experience with LLM APIs (Azure OpenAI, OpenAI, or equivalent) for building intelligent interfaces or automating classification, tagging, and cost attribution tasks. Software engineering fundamentals: Python, SQL, Git, CI/CD, containerization ...

Senior AI Engineer| London

Hiring Organisation
Infosys Technologies
Location
London, UK
Employment Type
Full-time
good understanding of GenAI prompt engineering, RAG pipelines, Supervised/unsupervised ML and AI observability Experience in Enterprise-grade RAG-based solutions with LLMs (OpenAI, Hugging Face, LLaMA, etc.) and vector databases (Pinecone, Weaviate, FAISS). Experience in designing and scaling GenAI chatbots. Experience in Agentic AI solutions. Good knowledge ...

Java Engineer

Location
Greater London, England, United Kingdom
Large Language Models (LLMs), Generative AI, Retrieval-Augmented Generation (RAG), AI agents, or machine learning workflows. Experience integrating AI APIs and platforms such as OpenAI, Anthropic, Azure AI, or similar technologies. Knowledge of vector databases, embeddings, prompt engineering, and AI application architecture. Experience with Python for AI/ML-related ...

AI Consulting –Sr. AI Architect & Client Partner

Location
Greater London, England, United Kingdom
prompt engineering, tool and function calling, RAG, and at least one production Agentic AI system. Cloud AI platform : deep experience with one of Azure, OpenAI, AWS Bedrock, Claude; Kubernetes and cloud-native deployment. LLMOps & evaluation : CI/CD for AI, automated evals, experiment tracking, observability, model lifecycle management. Responsible ...

Data Science Manager

Hiring Organisation
London Stock Exchange Group
Location
London, UK
Employment Type
Full-time
model observability, monitoring, evaluation frameworks, experimentation, reliability, and operational perfection. Expertise in cloud-native AI development using Azure AI Foundry, Azure Machine Learning, Azure OpenAI, Azure AI Search, AWS AI Services, and modern cloud architectures. Experience implementing MLOps and LLMOps practices, including CI/CD, model lifecycle management, governance ...

Data Science Manager

Location
Greater London, England, United Kingdom
observability, monitoring, evaluation frameworks, experimentation, reliability, and operational perfection**.* Expertise in cloud-native AI development using **Azure AI Foundry, Azure Machine Learning, Azure OpenAI, Azure AI Search, AWS AI Services, and modern cloud architectures**.* Experience implementing **MLOps and LLMOps practices**, including CI/CD, model lifecycle management, governance ...

Applied AI Engineer, Codex arbeitnow OpenAI Munich, Germany · 9/23/2026

Location
Greater London, England, United Kingdom
OpenAI’s Applied AI Engineering team helps organizations turn frontier AI capabilities into safe, reliable, and high-impact production systems. For software engineering organizations, this means helping customers adopt Codex and other OpenAI capabilities across the software development lifecycle—transforming how teams plan, build, test, review, and deliver software. … security, reliability, evaluation, and operational readiness, while ensuring deployments translate into measurable improvements in engineering productivity and software delivery. You will work closely with OpenAI Product, Research, Engineering, Security, Sales, and the broader Codex organization, translating real-world deployment experience into high-signal product and model feedback. Success is measured ...

Senior Full Stack Java Engineer

Location
Greater London, England, United Kingdom
cloud-native architecture, microservices, and event-driven integration patterns. Experience with Azure Service Bus, Event Grid, or similar cloud messaging platforms. Familiarity with Azure OpenAI and AI-enabled cloud architectures is highly desirable.AI-Assisted Development Hands-on experience with AI-assisted development tools such as GitHub Copilot, GitLab Duo, Cursor ...

Applied AI Engineer

Location
Greater London, England, United Kingdom
About the Team OpenAI’s Applied AI Engineering team helps organizations turn frontier AI capabilities into safe, reliable, and high-impact production systems. We work with customer executives, product and engineering teams, security leaders, and transformation teams to identify valuable opportunities, accelerate technical implementation, and scale what works. Enterprise deployments … successful demonstrations. This is a rare opportunity to work on consequential real‐world deployments at the frontier of AI while directly influencing how OpenAI’s products evolve. This role is based in London. We use a hybrid work model of 3 days in the office per week and offer relocation ...

Applied AI Engineer, Codex

Location
Greater London, England, United Kingdom
About the Team OpenAI’s Applied AI Engineering team helps organizations turn frontier AI capabilities into safe, reliable, and high-impact production systems. For software engineering organizations, this means helping customers adopt Codex and other OpenAI capabilities across the software development lifecycle—transforming how teams plan, build, test, review … security, reliability, evaluation, and operational readiness, while ensuring deployments translate into measurable improvements in engineering productivity and software delivery. You will work closely with OpenAI Product, Research, Engineering, Security, Sales, and the broader Codex organization, translating real‐world deployment experience into high‐signal product and model feedback. Success is measured ...

AWS Specialist Sellers, Strategic Pursuits

Location
Greater London, England, United Kingdom
Specialist Sellers, Strategic Pursuits | OpenAI Sales - London, UK and Munich, Germany About the Team OpenAI’s mission is to build safe artificial general intelligence (AGI) that benefits all of humanity. Achieving this requires bringing together world‐class scientists, engineers, and business leaders to translate frontier research into real‐world impact. … Within OpenAI, the Go‐to‐Market organization helps customers understand, adopt, and scale our products across their businesses. The team includes Sales, Solutions, Support, Marketing, Partnerships, and Strategic Pursuits professionals who work together to bring the benefits of AI to organizations globally. About the Role We are hiring a Senior ...

AI Engineer

Hiring Organisation
Formula Recruitment Limited
Location
London, UK
Employment Type
Full-time
programming language (for example Python, C#, JavaScript, Kotlin, Java or Go)Experience with Gen AI tools (such as LangGraph, CrewAI, Hugging Face or OpenAI APIs) and ML frameworks like PyTorch or TensorFlowStrong understanding of ML fundamentals (training, evaluation, deployment) and LLM-specific challenges such as prompt engineering, latency and cost ...

Lead Agentic AI Engineer

Location
City Of London, England, United Kingdom
delivery, ensuring the proposed solution is built to the agreed architecture and quality standards Core Technical Skills Hands‐on experience with LLMs such as OpenAI GPT, Claude, Gemini or Mistral Experience designing and building agentic AI solutions, including tool use, workflow orchestration, routing, memory, and multi‐agent patterns Expertise ...

Senior AI Automation Engineer

Location
Greater London, England, United Kingdom
with depth in some areas and willingness to grow others AI & Automation Experience building production AI/LLM applications, agents, or workflows (e.g. Azure OpenAI, Copilot Studio, or equivalent) Understanding of agent patterns, orchestration, tool use, and LLM limitations Integration & APIs Experience with REST/GraphQL APIs, authentication, and system ...

AI Engineer

Hiring Organisation
Ten Group
Location
London, United Kingdom
Salary
£ 70 K
RequirementsProficiency in at least one programming language. I.e Python, C#, JavaScript, Kotlin, Java, Go.. Experience with Gen AI tools (e.g LangGraph, CrewAI, Hugging Face, OpenAI APIs etc)Experience in building and optimising systems for performance, scalability, and reliability Understanding of ML fundamentals (training, evaluation, deployment) and LLM-specific challenges (prompt ...

GenAI Full Stack Engineer - Consultant / Senior Consultant - Digital Excellence

Location
Greater London, England, United Kingdom
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 ...

Senior AI Engineer

Location
Greater London, England, United Kingdom
Search and MongoDB, including design of indexing strategies, hybrid search configurations, and retrieval evaluation. Work within our Azure cloud environment, integrating with Azure OpenAI, Azure services, and our broader data platform. Collaborate with product managers, data scientists, engineers, and other stakeholders to scope and deliver AI features that address real … enabled software systems. Strong proficiency in Python, including building and shipping production backend services. Hands-on experience building applications with LLMs such as Azure OpenAI, OpenAI, Anthropic, or similar. Experience with FastAPI or comparable Python web frameworks. Production experience with Docker and Kubernetes, including deployment and management on AKS. Strong ...

Researcher, Robustness & Safety Training

Location
Greater London, England, United Kingdom
Researcher, Robustness & Safety Training | OpenAI Careers Researcher, Robustness & Safety Training Safety Systems - San Francisco and London, UK About the Team The Safety Systems team is responsible for various safety work to ensure our best models can be safely deployed to the real world to benefit the society … forefront of OpenAI's mission to build and deploy safe AGI, driving our commitment to AI safety and fostering a culture of trust and transparency. The Model Safety Research team aims to fundamentally advance our capabilities for precisely implementing robust, safe behavior in AI models, and to leverage these advances ...

AI / Machine Learning Engineer – Agentic LLM Systems (Contract)

Location
Greater London, England, United Kingdom
diagnose and fix failures in agent-generated code and workflowsBuild frameworks for tool-calling, multi-step planning, orchestration, and agent routingIntegrate with LLM providers (OpenAI, Anthropic, Vertex AI, open-source models) and support multi-model usageDevelop backend services and APIs to support AI-driven applications and workflowsBuild and run experiments ...

Senior AI Engineer / Data Scientist

Hiring Organisation
EPAM Systems
Location
London, UK
Employment Type
Full-time
strategies like planner/executor and tool callingKnowledge of MCP, A2A protocols, and OpenAPI-based integration methodsStrong experience with cloud environments, ideally Azure (Azure OpenAI, AI Foundry, AI Search)Competence in containerized deployments, CI/CD, and MLOps tooling (MLFlow, Airflow)Experience with Microsoft Agent Framework, Azure AI Agent ServiceKnowledge ...

Senior Data Engineer London

Location
Greater London, England, United Kingdom
50+ enterprise clients from 5 global locations, we work side-by-side with top partners including Databricks, Snowflake, AWS, Microsoft, Google Cloud, Anthropic, and OpenAI to deliver transformative data and AI solutions that drive measurable business impact. Overview We're seeking an experienced Senior Data Engineer to design, build ...

Applied AI Engineer

Hiring Organisation
Castleton Commodities International
Location
London, UK
Employment Type
Full-time
energy, trading, logistics, asset operations, market analytics, or commercial decision-support workflows. Hands-on familiarity with enterprise AI tools such as Claude, ChatGPT/OpenAI, Gemini, Microsoft 365 Copilot, Cursor, or GitHub Copilot. Exposure to Snowflake, vector databases, knowledge-base configuration, and cloud platforms such as AWS or Azure. Portfolio ...

Java Developer (SC Eligible/ Cleared)

Location
Greater London, England, United Kingdom
governance considerations specific to AI agents (prompt injection risks, access scoping, audit logging). Experience integrating with LLM provider APIs (e.g., Anthropic Claude API, OpenAI API) including streaming responses and tool-result handling. Qualifications & Experience Bachelor's degree in Computer Science or related field, or equivalent demonstrable experience. ...