51 to 75 of 227 OpenAI Jobs in London

Gradient Descent ... Ability to adjust weights for full/partial tuning of LLMs. Hands‐on experience with any large language models (e.g., OpenAI, Anthropic, Llama), prompt engineering,fine‐tuning/customization,and embedding‐based retrieval Intermediate to expert proficiency in Python (NumPy, Pandas, SpaCy, scikit‐learn, PyTorch/ ...

that you can pair with, delegate to, or even ask to take on future tasks proactively. Our team is a fast-moving group within OpenAI, bringing together research, engineering, design, and product. We iteratively build the Codex agent harness and product to get the most out of the model … focused on turning Codex from a powerful individual tool into a production‐grade teammate for entire organizations. You will work across internal OpenAI teams and external customers, from fast‐moving startups to large enterprises, to make it possible to deploy, operate, and trust Codex in increasingly demanding real‐world environments. ...

sales activities. Experience operating within consulting, professional services or transformation environments. Technical capabilities A strong AISolutionArchitect should also have practical experience with: Foundation Models OpenAI Azure OpenAI Anthropic Google Gemini Model selection and benchmarking Prompt engineering Fine-tuning and model customisation where appropriate Agentic AI Multi-agent systems Tool calling ...

About the Team The Privacy Engineering team builds secure, reliable systems that help OpenAI meet its legal obligations while protecting user data. We partner closely with Legal and engineering teams across OpenAI to support lawful data access requests and other critical legal workflows. Our work turns complex, high-stakes processes … through testing, observability, incident response, documentation, and continuous reliability improvements. Help define the architecture and roadmap for reusable privacy and legal‐infrastructure foundations as OpenAI’s products and obligations evolve. You might thrive in this role if you: Have experience building or operating systems for lawful data access requests ...

Requirements Strong AI Security, Cloud Security or Security Architecture background. Hands-on experience securing LLMs, GenAI, RAG solutions and AI agents. Experience with Azure OpenAI, AI Foundry and ideally GCP Vertex AI. AI threat modelling, red teaming, prompt injection testing and security control design. Engineering-led mindset with a strong ...

strategic objectives into practical technology solutions. Experience defining measurable business outcomes and value realisation frameworks. Desirable Experience with Copilot Studio, Azure AI Foundry, Azure OpenAI, and emerging AI agent platforms. Knowledge of Responsible AI principles and governance frameworks. Experience delivering enterprise data, analytics, digital transformation, or platform programmes. Experience developing ...

high degree of autonomy while staying deeply embedded in collaborative engineering culture. Tech Stack: Java 21 (Spring Boot 3), Python, LangGraph, LLM APIs (OpenAI, Anthropic, Gemini), PostgreSQL, Kinesis, AWS, Terraform, GitHub Actions, Node.js, TypeScript, Next.js, React. What you will do Take ownership of complex backend systems from design through production ...

strong plus. Stack and tools Python (FastAPI, Pydantic, async stack), Azure (App Services, Functions, AI Foundry, Key Vault, Entra ID, Private VNet), Postgres, OpenAI and Anthropic models, evaluation frameworks for agentic systems, Microsoft Graph (Teams, Outlook, SharePoint), CRM integrations including XPLAN, Salesforce, Dynamics 365, Plannr and Intelliflo. What we offer ...

enterprise stakeholders: collaborate directly with customer teams (architecture, security, platform) to deliver outcomes and build long‐term technical trust. Our Tech Stack Typescript, NodeJS, OpenAI, Microsoft Azure, Kubernetes, Docker, Terraform, MongoDB, MySQL, Redis, Kafka, MCP Who you are Experience level: 8+ years in software engineering, systems integration, DevOps, or data ...

cloud platforms), including secure development, data protection, compliance and enterprise architecture principles. Hands‐on experience integrating LLMs into production, including use of APIs (e.g. OpenAI, Bedrock), prompt orchestration, tool usage and interaction patterns. Expertise in AI system design including state management, memory strategies, evaluation approaches, guardrails, observability and performance optimisation ...

have: Experience as a founding or early-stage engineer Built an AI product or technical project from scratch Worked with LangChain, Deep Agents, OpenAI or Anthropic models Shipped AI systems used by a meaningful number of customers Personal AI or engineering projects that show genuine technical curiosity Compensation, Perks & Benefits ...

design of autonomous and multi‐agent systems, agentic design patterns (ReAct, planning, reflection, tool use, human‐in‐the‐loop), and frameworks (LangGraph, CrewAI, MAF, OpenAI Agents SDK, Google ADK). Proven ability to architect reliable agentic workflows with memory, state management and safe multi‐step task execution at scale. Model … frameworks, and training pipelines. Technical Proficiency – programming in Python, TensorFlow, PyTorch or similar; modern LLM/agent frameworks; cloud AI platforms (Amazon Bedrock, Azure OpenAI/AI Foundry, Google Vertex AI); vector databases; containerization and orchestration (Docker, Kubernetes); distributed computing. Architecture Design – end‐to‐end design of Generative and Agentic ...

help others, and a desire to pick up whatever knowledge you're missing to make both your team and our customers succeed. 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 … religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic. For additional information, please see OpenAI’s Affirmative Action and Equal Employment Opportunity Policy Statement. Background checks for applicants will be administered in accordance with applicable law, and qualified applicants with ...

Location London, UK Employment Type Full time Location Type Hybrid Department Model Deployment for Business About the team OpenAI’s Forward Deployed Engineering team partners with customers to turn research breakthroughs into production systems. We embed deeply with users to solve high-leverage problems. We move quickly from prototype … Market (GTM). About the Role We are looking for customer-focused software engineers to build effective custom software that leverages OpenAI’s APIs to solve real customer problems. As an FDSWE, you will work with our customers and OpenAI Forward Deployed Engineers to design and implement scalable solutions that ...

proposals, and executive decision-making. Governance & Compliance: Establish AI governance frameworks and ensure regulatory compliance. Core Expertise Generative AI: Prompt Engineering, RAG, LLM APIs (OpenAI, Azure OpenAI, Gemini) AI Dev Tools: GitHub Copilot, Amazon Q, Google Duet, Cursor, Devin Cloud: Azure, AWS, GCP; Microservices; DevOps Programming: Python, JavaScript/TypeScript ...

will design, build, and deploy agentic workflows, and predictive models, collaborating with frontend and backend teams to integrate AI features using LangChain, LlamaIndex, and OpenAI/Anthropic APIs. The role requires 3-5 years of experience, strong Python/TypeScript skills, and hands-on experience with LLMs, vector databases ...

Cloud, Data and AI (e.g. Solutions Architect, Machine Learning, Generative or Agentic AI) from leading providers such as AWS, Microsoft, Google Cloud, Palantir, OpenAI or Anthropic strong experience in enterprise architecture, technical pre-sales or technology consulting proven track record of delivering large-scale AI and cloud solutions deep expertise ...

highly regulated environment. Tech Stack Frontend React TypeScript JavaScript (ES6+) HTML5 CSS3 Backend Exposure Node.js REST APIs GraphQL Nice to Have Next.js AI integrations (OpenAI, Azure AI, or similar) Essential Skills & Experience Strong commercial experience building enterprise-grade frontend applications using React Advanced JavaScript and TypeScript development skills Solid understanding ...

equivalent professional experience. Background within technology, financial services or a data-driven organisation. Desirable Experience Experience using AI tools such as Claude Code, OpenAI or similar to automate day-to-day workflows. Understanding of agentic AI workflows. Previous contract or consulting experience delivering BAU projects against fixed deadlines. Experience working ...

comparable cataloguing and lineage tool) Dimensional modelling, Data Vault, warehouse and lakehouse architecture ETL and data pipeline design and build CoPilot, Claude and OpenAI in day-to-day delivery Nice to Haves: Agentic architecture, putting LLMs to work on real data problems Experience across data-sensitive sectors such as insurance ...

intensive, production systems. Familiarity with modern AI engineering techniques such as prompt‐engineering, fine‐tuning, eval loops, and technologies such as Gemini, Claude and OpenAI APIs. Hands‐on experience with AI tools/frameworks (e.g., Braintrust, AutoEval) and/or MLOps tools (e.g., Airflow, MLflow, Vertex AI, or similar). ...

such as PowerShell, Python and familiarity with APIs and data structures in JSON/YAML or similar. Experience with GenAI technologies via Public Cloud, OpenAI, AWS, etc. About You The ideal candidate is analytical and methodical, with a proven track record in problem-solving, critical BAU, advanced engineering and technology ...

do. We automatically test, enforce, and continuously improve these policies at scale. We’ve raised $11M from 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 ...

stakes analytical workflow in finance. We raised $3.1M in pre‐seed in December 2025, led by Cherry Ventures, with angels from McKinsey, BCG, QuantumBlack, OpenAI, Goldman Sachs, and Hg Capital. The category is being defined right now. This role is how we build the engine underneath it. What you will ...

point to what changed because of your work, that’s a flag. The right technical toolkit. Strong Python, hands‐on experience with LLMs (OpenAI, Anthropic, open‐source), agent frameworks, RAG pipelines, vector databases, and backend infrastructure like FastAPI, Postgres, and ElasticSearch, or close enough that the gaps close fast. Domain ...