Top Tech Jobs & Startup Jobs in San Francisco Bay Area, CA

Research and develop novel safety mitigations for frontier AI systems: measure emerging risks, build and refine evaluations, design red-teaming pipelines, set research directions, and collaborate across domains (misalignment, cybersecurity, biology) to ensure enforceable, scalable, and effective safety stacks.

Design and operate CI infrastructure to improve developer productivity and reliability in build systems, enhancing tool efficacy and performance across teams.

Partner-facing engineer who designs, builds, evaluates, debugs, and launches high-utility plugins for ChatGPT and Codex. Own partner technical journeys, write prototypes and production code, review architectures for security/privacy/reliability, run evaluations, and improve platform APIs, SDKs, docs, and tooling to support smooth launches and ongoing maintenance.

Build end-to-end product and platform features for Codex Security, turning research and model capabilities into scalable, observable systems. Own 0-to-1 projects across product surfaces, backend services, developer workflows, cloud infrastructure, and internal tooling. Collaborate with product, research, infrastructure, and customer teams to iterate from real-world feedback and shape the technical direction of Codex Cyber.

The Research Engineer will develop privacy-preserving machine-learning algorithms, strengthen model robustness, and collaborate across teams to implement privacy standards.

Lead end-to-end technical delivery for semiconductor customers, translating business outcomes into roadmaps, coordinating cross-functional teams (FDE, Research, Product, customer engineers), driving 0→1 prototypes to production, ensuring integration with customer toolchains and export-controlled environments, codifying reusable patterns, and measuring ROI and adoption.

Lead support readiness and operational programs for cloud and strategic partnerships. Plan launches, design support workflows and escalation paths, align stakeholders, identify risks, define success metrics, and use AI/automation to scale partner-related support operations.

As a Software Engineer on the Database Systems team, you will design and optimize high-performance distributed databases, resolving performance issues and collaborating with teams to enhance reliability and scalability.

Verify complex hardware systems, including custom IP blocks and SoCs. Develop verification plans, testbenches, and maintain high coverage for reliable silicon.

Build full‑stack onboarding, discovery, collaboration, and activation experiences for Codex Enterprise. Deliver polished frontend and reliable backend systems across web, IDEs, and CLI; run experiments and analytics; partner with product, design, GTM, and customers to increase adoption and integrate Codex into developer workflows.