OpenAI Jobs

Speak is seeking an Engineering Manager to lead the Platform & Infrastructure team. This role is pivotal during a transformative period in software development, focusing on agentic shifts. The team's mission is to empower all engineering teams at Speak by providing robust, self-serve infrastructure, sensible guardrails, and expert guidance. This ensures rapid, high-quality feature delivery while maintaining a state-of-the-art customer experience, impacting everything from application performance and reliability to developer productivity and security. The Engineering Manager will be a key driver in evolving towards agentic engineering, enabling autonomous, high-quality work through the systems and environments the team builds.

We are seeking experienced Backend and Applied AI Engineers to develop the core systems powering Within's multimodal agents for enterprise environments. This role is at the intersection of distributed systems and applied AI, focusing on designing and shipping backend services that handle real-world data ingestion, orchestrate AI model and agent workflows, ensure enterprise-grade security, and deliver reliable outcomes at scale. You will collaborate closely with product and design teams to transform ambitious AI capabilities into production-grade features for Fortune 500 enterprises. A strong emphasis is placed on engineering fundamentals such as correctness, observability, security, and performance, balanced with rapid iteration speed. You will also play a key role in setting technical direction for critical subsystems and mentoring junior engineers.

Within is seeking an AI Front-end Engineer who excels at the intersection of product design and front-end engineering. As an engineer first with exceptional design sensibility, you will define and implement the "look and feel" of AI-native workflows, ensuring our complex enterprise tools are as intuitive as consumer apps. We value your portfolio and track record of shipping over formal degrees.

OpenAI

This is a founding role for a Technical Deployment Lead (TDL) based in Tokyo. The TDL will define how OpenAI delivers complex systems to customers, owning their build, shipment, and adoption. This role involves translating business outcomes into technical plans, managing day-to-day execution across engineering teams, and partnering with customers to ensure delivery meets their goals. While not a management role, it requires end-to-end delivery ownership, including embedding with customers to map workflows, ensure timely component delivery, and lead readiness and change management for adoption. The TDL will track progress, manage dependencies, make sequencing decisions, and drive prototypes from inception to scale, while also sharing field insights with Product and Research to influence the roadmap. Success is measured by the impact of deployments in delivering measurable value, driving adoption, and becoming critical to customer workflows, alongside delivery reliability and operating leverage.

$25k - $50k

Crusoe is seeking a Senior Systems Engineer to play a key role in executing the company's Enterprise AI Strategy. This role involves designing and building agentic AI systems to move the organization from simple information retrieval to orchestrated, multi-system automation. You will operate at the intersection of AI, enterprise systems, and integration platforms, building scalable agent workflows, enabling a citizen developer ecosystem, and establishing the technical foundations for an AI-powered operating model.

$190k - $230k

Within is seeking an AI Front-end Engineer to join their fast-growing Series B company. This role offers a unique opportunity to learn at the intersection of product design and frontend engineering, focusing on building AI-native workflows that simplify complex enterprise tools. You will work directly with senior engineers and designers, contributing to features used by Fortune 500 customers and learning best practices for scalable front-end systems. The company emphasizes rapid growth, rewarding agency, and a deep care for customers, the team, and their mission to transform industries through AI agents.

We are seeking Backend + Applied AI Engineers to construct the core systems that power Within's multimodal agents in real enterprise environments. This is a hands-on role at the intersection of distributed systems and applied AI, where you will design and ship backend services for ingesting real-world data, orchestrating model/agent workflows, enforcing enterprise-grade security, and delivering reliable outcomes at scale. You will collaborate closely with product, design, and other engineers to transform ambitious AI capabilities into production-grade features for Fortune 500 enterprises. We prioritize strong engineering fundamentals, including correctness, observability, security, and performance, alongside rapid iteration speed, recognizing that success in this field depends on delivering quality products and features with incredible velocity.

thinkingmachines

Thinking Machines Lab is seeking a Software Engineer focused on security to ensure their AI products are secure by default while enabling rapid product iteration. This role involves embedding with product and research teams to integrate security into the design and development process, as well as building tools and automation to maintain system safety at scale. The company is dedicated to advancing collaborative general intelligence and empowering users with AI tools tailored to their needs.

$350k - $475k

thinkingmachines

Thinking Machines Lab is seeking generalist infrastructure and systems engineers to build the core systems powering their foundation models and support internal research and product development teams. This high-impact role involves architecting and scaling critical infrastructure across the full technical stack, solving complex distributed systems problems, and building robust, scalable platforms. You will work directly with researchers to accelerate experiments, improve infrastructure efficiency, and enable key insights across models, products, and data assets.

$350k - $475k

LiteLLM is seeking a Senior Backend Engineer to join their team and focus on building robust guardrails and observability tooling for their AI Gateway. This role involves owning the backend code responsible for consistent logging of guardrail calls, surfacing errors to users, and ensuring observability instrumentation performs under high-volume traffic. Your contributions will be crucial for maintaining user trust in security and compliance features by focusing on details like latency metrics, logging traceability, and backend guardrail registration.

OpenAI

OpenAI is seeking a Software Engineer to join the Scaling team, which builds the architectural and engineering backbone for the company's infrastructure. This role focuses on enabling production workloads and end-to-end testing on new platforms. You will be responsible for creating test harnesses, developing platform stress benchmarks, and porting existing AI model training and inference workloads to new systems and hardware. A key aspect of this position involves analyzing performance, identifying bottlenecks, and characterizing the behavior of new compute, communication, storage, and control plane systems, including their failure modes.

Sierra is building a platform to enable companies to create better, more human customer experiences with AI. We are seeking a Software Engineer to join our team and focus on building the core systems that power AI agents. This role involves working on the Agent SDK, including the orchestration engine, runtime, and primitives that define how agents reason, take actions, and interact with users and systems. You will also design the agentic loop, defining the necessary primitives for steerable, verifiable, conversational, and adaptive agents, and improve retrieval and grounding systems to ensure agents provide accurate, trustworthy responses. Additionally, you will build evaluation systems to measure and improve agent quality over time.

OpenAI

We are seeking applied AI engineers to transform Codex agents from impressive demonstrations into dependable tools. This role focuses on enhancing agent performance for real-world software engineering tasks, bridging the gap between research capabilities and practical usefulness. You will collaborate closely with research, infrastructure, and product teams to ensure agents are powerful, steerable, and reliable. The objective is to achieve measurable improvements in solve rates, usefulness, and economic value for users by refining model behavior and system integration.

OpenAI

We are seeking engineers to build the core infrastructure that powers Codex agents in production. This role involves designing and operating systems for sandboxed execution, orchestration, stateful workflows, and reliable, efficient operation at scale. You will work at the intersection of distributed systems, developer tooling, and AI, building primitives that enhance the speed, safety, reliability, and ease of use of Codex for the organization.

OpenAI

OpenAI's Applied AI Engineering team partners with leading organizations to design, build, and deploy AI systems that deliver measurable business outcomes. This role involves combining deep technical judgment, hands-on engineering, and customer leadership to take ambitious ideas from use-case selection and architecture through prototyping, evaluation, production launch, and scale. You will write and debug code, build evaluation systems, resolve complex integrations, and guide decisions involving model behavior, reliability, latency, cost, safety, security, governance, and operational readiness. Success is measured by production systems, sustained adoption, and meaningful customer impact. 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.

Sierra is building a platform to enable companies to create better, more human customer experiences with AI. As an Agent Strategist, you will be responsible for bringing Sierra's AI agents to life for customers, guiding them from initial pilot phases to production-ready agents handling significant volumes of conversations. This role sits at the intersection of product development, agent building, and customer engagement, requiring a deep understanding of both the technology and the user's needs. You will transform complex customer challenges into effective AI agents that deliver measurable business impact.

OpenAI

OpenAI's Hardware organization is developing next-generation AI-native silicon and system-level solutions tailored for advanced AI workloads. As an Engineer on our hardware optimization and co-design team, you will collaborate with vendors to co-design future hardware for programmability and performance. You will work closely with kernel, compiler, and machine learning engineers to understand their needs regarding ML techniques, algorithms, and programming expressivity. Your role will involve evangelizing these constraints to vendors to influence future hardware architectures for efficient AI model training and inference, and optimizing large language models across devices, networking bottlenecks, and compute pipelines.

OpenAI

OpenAI's Internationalization team is seeking a Senior Software Engineer to build the systems that power localization and international product launches. This role involves working on the platform that manages product content, translation workflows, and localization infrastructure across all OpenAI products. It sits at the intersection of AI systems, developer platforms, and product infrastructure, aiming to ensure OpenAI products work seamlessly across languages, regions, and cultures.

OpenAI

As a Machine Learning Engineer in OpenAI's Integrity team, you will work on state-of-the-art models and classifiers, experiment with new architectures and approaches, and advance our capabilities in content and user understanding. This role offers the chance to transform research breakthroughs into tangible solutions that enhance the trust and safety of our platform, with a focus on training LLMs and building ML models. You will be instrumental in designing and deploying advanced machine learning models to solve real-world problems, bringing OpenAI's research from concept to implementation and creating AI-driven applications with direct impact.

OpenAI

OpenAI is seeking an Engineering Manager to lead the Online Data Systems team, which is responsible for building and operating the company's in-house database and indexing technology. This role involves guiding a team of engineers focused on hyperscale data storage and retrieval, crucial for supporting production AI applications like ChatGPT and Codex. The position offers the opportunity to shape the future of large-scale data infrastructure, moving beyond minor optimizations to make significant contributions to the company's technological direction.