OpenAI

OpenAI

We are seeking an experienced Site Reliability Engineer to focus on security infrastructure. This role involves designing, building, and operating reliable, secure, and scalable infrastructure for identity, access, endpoint, and shared platform services across the company. You will be a senior technical owner, responsible for the end-to-end lifecycle of infrastructure and identity systems, from architecture and implementation to policy enforcement, upgrades, recovery, and ongoing operations. The goal is to build durable, production-grade platforms that reduce operational friction, enforce security by default, and empower teams to move forward with confidence. This is a hands-on role for a senior engineer who excels in ambiguous environments, enjoys end-to-end system ownership, and elevates reliability and security by replacing fragile systems with standardized, repeatable infrastructure.

OpenAI

As a Machine Learning Engineer in OpenAI's Integrity team, you will work with state-of-the-art models and classifiers, experiment with new architectures, and advance our capabilities in content and user understanding. This role offers the chance to transform research breakthroughs into tangible solutions that enhance platform trust and safety, particularly for those excited about training LLMs and building ML models. You will be instrumental in designing and deploying advanced machine learning models to solve real-world problems, bringing AI-driven applications from concept to implementation. Collaboration with researchers, software engineers, and product managers is key to delivering AI-powered solutions for complex business challenges. You will also optimize and scale data pipelines, ensure models are production-ready, and contribute to projects requiring cutting-edge technology. Staying ahead of the curve in machine learning and AI developments, participating in code reviews, and leading by example are essential aspects of this role, as is monitoring and maintaining deployed models to ensure continued value delivery.

OpenAI

OpenAI's Forward Deployed Engineering team partners with customers to turn research breakthroughs into production systems, operating at the intersection of customer delivery and core platform development. Forward Deployed Engineers (FDEs) lead complex end-to-end deployments of frontier models in production alongside our most strategic customers. You will own discovery, technical scoping, system design, build, and production rollout, partnering directly with customer engineering and domain teams. Success will be measured through production adoption, measurable workflow impact, and eval-driven feedback that influences product and model roadmaps. You'll collaborate closely with Product, Research, Partnerships, GRC, Security, and GTM teams.

OpenAI

As an AI Architect, you will be the senior technical owner for a named portfolio of customers and the primary technical counterpart to their leadership teams. You will act as the “CTO of your book of business”, shaping each customer's AI strategy and guiding their journey from pre-sales discovery and solution evaluation through deployment, adoption, and measurable business impact. You will own the technical account plan across ChatGPT Enterprise, the OpenAI API, Codex, and other agentic AI solutions. In partnership with the Account Director, you will translate business priorities into a focused use-case portfolio, an actionable adoption roadmap, and a clear path to durable customer value and growth. You will remain accountable for the technical outcome while bringing in the right specialists across deployment, implementation, enablement, security, product, and partners to provide deeper expertise and execute work where needed.

OpenAI

We’re hiring a Full Stack Software Engineer to help invent the next generation of AI-powered software development workflows. This role involves owning complete product experiences, spanning user interfaces, workflow orchestration, agent and prompt design, backend systems, and cloud infrastructure. It's a highly product-oriented position where you'll work directly on workflows developers use daily, identifying bottlenecks and rethinking how software gets built in a world where AI agents are active participants. The features you ship will influence how developers around the world write, review, test, and maintain software.

OpenAI

The Codex Web Layer team is responsible for the web-based systems and user experiences for Codex, spanning the entire stack from the application framework to the in-app browser. In this role, you will design and implement infrastructure and features end-to-end for the Codex desktop client application, helping to define the future of hybrid agentic/interactive web browsing. This position offers a unique opportunity to work on a critical and rapidly growing product within a small, experienced team, contributing to a platform that integrates from the OS level to user interaction design.

OpenAI

OpenAI is seeking a backend engineer to adapt its API platform for strategic cloud environments, starting with AWS. This role involves building backend services, APIs, SDK integrations, authentication flows, and cloud service infrastructure to enable developers to use OpenAI capabilities within their existing cloud environments. You will work across teams, sometimes embedded with partner product groups, to ship products quickly and across multiple platforms simultaneously. This is an excellent opportunity for engineers who have experience building developer tools, particularly AI-powered ones, can communicate effectively across technical disciplines, and can design architectures supporting diverse deployment models.

OpenAI

OpenAI is seeking dedicated, experienced, and deeply curious individuals to join its User Operations team. In this role, you will work directly with customers through support tickets and live calls, troubleshooting high-impact issues and resolving novel, often ambiguous technical problems in a fast-paced environment. You will help define world-class support in an AGI-driven future, partnering closely with Engineering, Product, and Operations to improve systems, reduce bugs, and elevate the customer experience, while leveraging automation and AI technology to transform support operations at scale.

OpenAI

As a Software Engineer: Internal Applications, Enterprise, you will build internal products that make technology support and administration safer, faster, and less dependent on manual intervention. You will help reduce reliance on broadly privileged human actions, turn recurring technology problems into paved paths, and build agentic systems that can help resolve tickets end to end. A core part of the role is building the interfaces that bring employees, AI agents, and human responders together in a shared ITSM experience, with the right context, controls, and handoffs at each step. We are seeking engineers who enjoy working across frontend and backend layers on ambiguous, high-leverage enterprise problems, bringing strong product judgment and solid backend engineering fundamentals.

OpenAI

OpenAI's Hardware organization is developing AI-native silicon and system-level solutions for advanced AI workloads. We are seeking a Security Engineer to join our First-Party Hardware team. In this role, you will own the end-to-end security foundation for OpenAI's first-party AI hardware systems, encompassing hardware security, embedded security, system security, and practical deployment at data center scale. You will partner with various teams to define and deliver system-level device trust, including aspects like boot integrity, device identity, provisioning, attestation, management-plane security, storage encryption, debug controls, firmware updates, and decommissioning. Your accountability will extend from translating threat models into requirements, to implementation, and finally to validation evidence supporting launch decisions.

OpenAI

The Scaled Abuse team at OpenAI is responsible for protecting the company's products and customers by detecting, preventing, and responding to fraudulent and abusive behavior at scale. This role involves building and operating backend and data systems that power real-time detection, investigation workflows, and enforcement. The work requires a blend of engineering and abuse expertise, partnering with various teams to understand attack patterns and harden defenses. The ideal candidate is comfortable with ambiguity, can quickly learn new codebases, and can propose pragmatic improvements to enhance system resilience.

OpenAI

We are seeking an experienced software engineer to join our Cloud Agents team, which focuses on building and scaling the product infrastructure for long-running agents in the cloud. This includes developing systems for orchestration, sandboxing, isolation, secure connectivity, secrets management, observability, reliability, and cost controls. You will play a key role in designing and operating systems that orchestrate agents at scale, working closely with product engineers across ChatGPT, API, and Codex to define essential abstractions and enable rapid product development. A strong background in backend or infrastructure development, particularly with Python, Rust, distributed systems, cloud infrastructure, or product platforms, is highly valued.

OpenAI

As an Analytics Engineer in Safety Systems, you will be instrumental in fostering a data-driven culture, improving decision-making, and spearheading strategic initiatives through advanced analytics. You will collaborate closely with Engineering, Research, and Data Science teams to develop and maintain essential data sources and authoritative dashboards. These resources will empower both individuals and AI agents across the organization to gain reliable, actionable insights. Your primary responsibility will be managing the consumption layer for safety metrics, establishing clear and dependable methods for stakeholders in Safety Systems, partner teams, and leadership to assess product safety, independently address safety-related inquiries, and inform product development and company strategy. You will be a key contributor to the Safety Systems team, working with researchers and engineers to advance the mission of creating safe, robust, and trustworthy AI.

OpenAI

As a member of the training team, you will push the frontier of LLM development for OpenAI's flagship models, enhancing intelligence, efficiency, and adding new capabilities. Relevant interests may include areas such as architecture design, long-context and efficient attention, optimization, and the science of scaling. Ideal candidates have a deep understanding of LLM architectures, a sophisticated understanding of model inference, and a hands-on empirical approach. A good fit for this role will be equally happy coming up with a creative breakthrough, investing in strengthening a baseline, designing an eval, debugging a thorny regression, or tracking down a bottleneck.

OpenAI

As an AI Architect, you will be the senior technical owner for a named portfolio of customers and the primary technical counterpart to their leadership teams. You will act as the “CTO of your book of business”, shaping each customer's AI strategy and guiding their journey from pre-sales discovery and solution evaluation through deployment, adoption, and measurable business impact. You will own the technical account plan across ChatGPT Enterprise, the OpenAI API, Codex, and other agentic AI solutions. In partnership with the Account Director, you will translate business priorities into a focused use-case portfolio, an actionable adoption roadmap, and a clear path to durable customer value and growth. You will remain accountable for the technical outcome while bringing in the right specialists across deployment, implementation, enablement, security, product, and partners to provide deeper expertise and execute work where needed. This role calls for strong industry fluency, sound architectural judgment, and the ability to move confidently between executive strategy and hands-on technical conversations.

OpenAI

We are seeking a technically proficient, business-minded Applied AI Engineer to help push the frontier of advanced AI with our strategic startup customers. You'll work with some of the most exciting AI startups in the world, guiding them through ideation, development, delivery, and scaling to accelerate and maximize the value of what they build on our platform. You will have the opportunity to work on the most novel and creative use cases being built on our API, serving as a critical partner in collecting and delivering high-fidelity product and model feedback internally. You will collaborate closely with Sales, Solutions Engineering, Applied Research, and Product teams.

OpenAI

We are seeking a highly experienced technical leader to serve as the primary technical counterpart to AWS field leadership, including Solutions Architects, Specialists, and Partner teams. This role is pivotal in shaping strategy, defining engagement models, and building scalable systems that impact AWS globally. You will work across pre- and post-sales cycles, guiding complex enterprise customers from initial ideation through to production deployment, while also enabling AWS and their partners to independently drive deployments. Your expertise will be crucial in maximizing impact across a portfolio of high-priority opportunities by combining deep technical knowledge, strong judgment, and ecosystem leadership.

OpenAI

This role focuses on keeping our frontier RL training runs fast, reliable, and unblocked. You will work across engineering and infrastructure problems as they emerge, from scaling and orchestration issues to inference bottlenecks, numerical problems, and hardware failures, as well as supporting large horizontal integrations in the big run, like multi-agent capabilities or memory. This is a role for a strong generalist who quickly learns anything needed for the task, has high attention to detail, debugs deeply, and is motivated by fixing the highest-impact problem in front of the team.

OpenAI

OpenAI is seeking a Technical Program Manager to join its Senior Support Engineering team. This role is pivotal in defining and implementing foundational support practices that will scale with OpenAI's growth. You will lead initiatives to establish new operational frameworks, drive process alignment with internal teams, and spearhead tooling and automation projects. This position offers a unique opportunity to significantly impact customer experience while collaborating across multiple departments in a fast-paced, evolving environment. The ideal candidate thrives at the intersection of project management, systems building, data science/engineering/software engineering, team enablement, and customer advocacy.

OpenAI

As a Software Engineer, Quality and Developer Tools, you will build and own the systems that validate our device software. This includes designing and implementing test frameworks, regression infrastructure, hardware-in-the-loop labs, and release gates. You'll develop tooling and automation to ensure quality signals are trustworthy, integrate them into CI/CD pipelines, and create efficient workflows for engineers and QA technicians. The ideal candidate has deep experience in software quality, automation, developer tooling, and hardware-software integration, with a passion for building scalable and reliable systems for validation and release readiness.