226 to 250 of 488 OpenAI Jobs in London

Founding GTM Engineer

Location
Greater London, England, United Kingdom
recently raised our Series A funding round, taking our total funding to $70M. Our investors include top funds, founders, and senior leaders at OpenAI, Anthropic, HuggingFace, Mistral, DeepMind, Datadog, Sentry, and others We process over 100M+ API calls every month We fine-tune and train our own LLMs so they ...

Lead Platform Engineer (AI Early Stage Startup)

Location
City of Westminster, England, United Kingdom
fast and painless for engineers to deploy and debug Who we’re looking for The ideal candidate will have come from a FAANG, Anthropic, OpenAI, Palantir‐type organisation, or from an exceptional startup environment with a very high engineering culture, where they have personally owned and built the DevOps function ...

AI Builder

Hiring Organisation
Profile 29
Location
London, England, United Kingdom
development etc.). Experience and proficiency developing in Python, including wider system design principles. Some experience developing with agentic coding tools (e.g. Claude Code, OpenAI Codex etc.). Strong system-design judgement: structuring systems so you retain a clear understanding of how they work, even when you didn't hand ...

AI Builder

Hiring Organisation
Profile 29
Location
South West London, London, United Kingdom
Employment Type
Permanent
Salary
£75,000
development etc.). Experience and proficiency developing in Python, including wider system design principles. Some experience developing with agentic coding tools (e.g. Claude Code, OpenAI Codex etc.). Strong system-design judgement: structuring systems so you retain a clear understanding of how they work, even when you didn't hand ...

AI Analyst (London)

Location
City Of London, England, United Kingdom
JSON, developer tools and automation platforms such as n8n, Make, Zapier, UiPath or similar You have practical experience using or integrating LLMs such as OpenAI, Claude or equivalent You can explain technical concepts clearly to non-technical users You are comfortable training colleagues and working directly with teams to solve ...

Data Platform Engineer

Location
Greater London, England, United Kingdom
market opportunity. We're backed by world-class investors including Sequoia Capital, and you'll be joining a team bringing together experience from OpenAI, Meta, Revolut, NASA and McKinsey. What You’ll Do Design, implement and operate ingestion pipelines processing high-volume data from global supply chain and procurement systems. ...

Consulting Director - Energy & Commodity Trading London

Location
Greater London, England, 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 Ready to tackle the most complex challenges in energy trading? As Consulting Director ...

Staff Talent Sourcer - UK & EU

Location
Greater London, England, United Kingdom
automations, or practical AI solutions that improve recruiting or business processes. Direct experience using AI development environments or coding assistants (such as Claude Code, OpenAI Codex, Cursor, GitHub Copilot, ChatGPT, Gemini, or similar tools) to create repeatable sourcing workflows, structured research outputs, market intelligence, process automation, or operational documentation. Experience ...

AI Models Manager

Location
Greater London, England, United Kingdom
evaluation and accuracy tracking. Evaluate and recommend the optimal mix of proprietary, open-source and vendor-based AI models, including solutions from Microsoft, Google, OpenAI and Mistral. Collaborate with platform engineering teams to ensure models are deployable, scalable and operationally effective. Lead distributed teams of machine learning engineers, data scientists ...

Partner Solutions Engineer

Location
Greater London, England, United Kingdom
Head of Partnerships to advance partner integrations and unblock technical work. Review partner and community GitHub pull requests and share actionable feedback. Use OpenAI and Anthropic APIs to prototype client tools and accelerate partner workflows. Share partner needs and technical findings with Product and Engineering teams. Partner enablement Create technical ...

Director – AI and Machine Learning

Location
Greater London, England, United Kingdom
work. We're technology-agnostic but technology-deep. We hold premium partnerships with the platforms shaping this industry, including Google, Anthropic, OpenAI, Databricks, and AWS, giving our consultants direct access to the newest capabilities before they reach the mainstream. Half of our projects involve collaboration across more than two offices ...

Control Systems Engineer (LV Management)

Hiring Organisation
UK Power Networks
Location
London, England, United Kingdom
screening process and is not retained by the model or by UK Power Networks’ contractor, shared with the contractor’s other customers or with OpenAI, or used to train or improve AI models.We are committed to safeguarding and promoting the welfare of children and young people. Where applicable, this role ...

GTM Engineer

Location
Greater London, England, United Kingdom
most consequential software companies of the last decade: the founders of Slack, Figma, and Shopify, and Asana\’s former CRO and Head of OpenAI International. We\’re a small team with an unapologetically high bar. It shows up in the product, in how we communicate, and in the standards ...

AI Engineer

Location
Greater London, England, United Kingdom
design, build, and deploy Generative AI and AI‐driven applications using Google Cloud Platform (GCP) and leading Large Language Models (LLMs) such as ChatGPT (OpenAI) and Claude (Anthropic). This role is hands‐on and delivery‐focused: you will move AI from prototype to production, working closely with business stakeholders … patterns using structured and unstructured insurance data (policies, submissions, bordereaux, claims documents). Build LLM‐based workflows and agents using platforms such as ChatGPT (OpenAI) and Claude (Anthropic). Cloud & Platform Engineering (GCP) Develop and deploy AI solutions on Google Cloud Platform, leveraging services such as Vertex AI, BigQuery, Cloud ...

AI Engineer

Location
Greater London, England, United Kingdom
responsibilities:- Design and build LLM-powered features such as retrieval-augmented generation (RAG), semantic search, chat assistants, and AI agents- Integrate LLM APIs (e.g. OpenAI, Anthropic, Gemini) and open-source models into Django and FastAPI services- Build and maintain data pipelines for document ingestion, chunking, embeddings, and vector search- Engineer … development experience, including at least 1 year building LLM or ML features used in production Hands-on experience with LLM APIs and frameworks (e.g. OpenAI/Anthropic SDKs, LangChain, LlamaIndex, or similar) Solid understanding of RAG architectures, embeddings, and vector databases (pgvector, Pinecone, Weaviate, Qdrant, or similar) Experience building APIs ...

AI Engineer

Location
Greater London, England, United Kingdom
monitor and improve LLM-based systems, with particular attention to legal accuracy, confidentiality, security, provenance and responsible use. Platforms and technical delivery: Use approved OpenAI capabilities, including relevant API, Skills and Work capabilities, alongside FleetAI and other approved platforms where they best meet the use case and governance requirements. Build … identity, security, data protection and operational reliability. Experience with RAG, embeddings, evaluation frameworks, prompt and version management, model safety controls and observability. Familiarity with OpenAI APIs and enterprise AI platforms is highly desirable. Excellent consulting, communication and facilitation skills: able to build trust, frame problems, make progress amid ambiguity ...

FX Risk Lead Java Developer + AI (VP)

Location
Greater London, England, United Kingdom
generation, to Citi Squad for automated code reviews, to Stylus Workspaces — Citi’s in‐house GenAI platform powered by top‐tier LLMs including Gemini, OpenAI, Claude, Llama, and local models. You’ll use Prompt Engineering, Workflow Design, and GenAI Optimisation techniques as part of your everyday engineering practice. This … peer reviews — mandatory, structured, and supported by tooling that flags security risks, missing tests, and policy violations LLMs & Stylus Workspaces Large Language Models: Gemini, OpenAI, Claude, Llama, and Local Models Stylus Workspaces — Citi’s in‐house GenAI platform (powered by Gemini), connected to internal systems including Jira, GitHub, Slack ...

Sales and Partnerships

Location
Greater London, England, United Kingdom
About the Role Help organizations turn AI into meaningful business results. OpenAI’s Sales teams work directly with customers to identify valuable uses of our technology. Our Partnerships teams work with technology and services partners to develop joint business plans, bring solutions to market, and help more customers adopt AI. … plans, and stay close to execution and measurable outcomes. Are curious about AI, learn quickly, and take ownership in a fast-changing environment. About OpenAI OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries ...

Senior Full Stack Developer (React, Python, Azure AI)

Location
Greater London, England, United Kingdom
also considered) API & Micro services integration Docker and containerised environments CI/CD and cloud-native development Experience working with AI/LLM technologies , OpenAI, Azure OpenAI, Lang Chain, Semantic Kernel, RAG, or Agentic AI frameworks What You'll Be Doing Building scalable, high-performance web applications Developing AI-powered ...

AI engineer with Agentic experience

Location
Greater London, England, United Kingdom
with strong ownership across the SDLC.Generative AI & ML Requirements Experience building agents Vector databases and RAG patterns (indexing, chunking, embeddings, retrieval). LLM integration (OpenAI, Azure OpenAI, Anthropic, or open source models) with prompt design, safety/guardrails, and cost/perf tuning. Nice to have Highly desirable: experience with ...

AI Engineer

Location
Greater London, England, United Kingdom
Hands‐on experience building LLM applications such as RAG pipelines, document processing, copilots or conversational AI Practical experience with LLM APIs and platforms (e.g. OpenAI, Azure OpenAI, Anthropic) and orchestration frameworks (e.g. LangChain, LlamaIndex) Experience with vector databases and retrieval architectures Strong programming skills in Python, with the ability ...

Senior Dynamics 365 CE & Power Platform Developer

Location
Greater London, England, United Kingdom
Power Platform. You will own work packages, implement components per architectures, and contribute to AI features using Copilot Studio and Azure OpenAI, while engaging in ALM and code reviews. You will collaborate with Technical Leads/Architects, ensure code quality, and mentor junior colleagues. Remote work is supported with regular ...

Lead Software Developer

Location
Greater London, England, United Kingdom
DBMS Modern source control system (for example GitHub) Experience with a cloud platform (Azure/AWS) Event Sourcing (desirable) Experience with an AI platform (OpenAI), (desirable) Do you like solving complex business problems, working with talented colleagues and have an innovative mindset? Arch may be a great fit for you. ...

Dynamics 365 CRM Solution Architect

Location
Greater London, England, United Kingdom
Solutions Architect Expert, Power Platform Solutions Architect Expert, Azure Solutions Architect Expert, or equivalent. Experience with Dynamics 365 Customer Insights, Copilot Studio, Azure OpenAI, Azure AI Search, Azure Integration Services, Azure API Management, and Azure data services. Experience in central government, tax, welfare, healthcare, banking, or other regulated sectors. Knowledge ...

AI/ML ENGINEER

Location
Greater London, England, United Kingdom
procurement models (6090 day demand forecasting). Implement supplier matching algorithms with performance scoring and ranking logic. Integrate and orchestrate third-party AI services (OpenAI, Google Cloud Vision, etc.). Establish end-to-end model lifecycle processes including monitoring, evaluation, and continuous improvement. Work with diverse datasets including supplier catalogues ...