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OpenAI Logo OpenAI · IT - Software Development

Operating Systems Engineer

United States, San Francisco 230000.00 - 385000.00 USD / Year · Job Posted February 21, 2026
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Job Description

We are looking for an Operating Systems Engineer to build and harden the OS foundations for OpenAI products. We are especially interested in experienced, passionate, and innovative operating systems developers who thrive on building foundational platform software and solving hard problems in security, privacy, performance, power, and reliability. You will work across the OS kernel, core OS services, security and privacy primitives, performance and power, and the frameworks that connect applications and UI to the system. This role emphasizes deep debugging and systems ownership from development through production. You will collaborate closely with embedded, firmware, hardware, application, and product engineering teams.

Job Responsibility

  • Work on end-to-end OS capabilities spanning the OS kernel, userspace services, application frameworks, UI toolkits, and application-facing APIs
  • Develop, integrate, and maintain OS components, both kernel-bound and in userspace, including scheduling, memory management, filesystems, drivers, IPC/RPC mechanisms, and security-relevant subsystems
  • Build and maintain core OS services and daemons (init, service management, device discovery, networking primitives, time, logging, update hooks, crash handling, and so on)
  • Design and implement security and privacy mechanisms
  • Establish a performance and power discipline
  • Build first-class debugging and observability for the OS
  • Provide stable, well-documented platform interfaces for application frameworks and UI frameworks
  • Contribute to reliability and release readiness

Requirements

  • Strong experience with systems programming (such as with Linux, BSD, etc), including meaningful work in the kernel (drivers, core subsystems, or platform enablement) and operating systems
  • Professional proficiency in C, C++ for low-level systems development
  • Experience building or maintaining core OS services and platform software (system services, daemons, init/service management, device management, logging/telemetry pipelines)
  • Track record of debugging complex issues across kernel/userspace boundaries using tracing, profiling, and structured root cause analysis
  • Familiarity with security fundamentals in OS design: isolation boundaries, privilege separation, secure IPC, attack surface reduction, and vulnerability mitigation practices

Nice to have

  • Hardware bring-up exposure (bootloader/early boot debugging, device tree/ACPI, board revisions, peripheral enablement), even if not your primary background
  • Experience with OTA/update systems, partitioning strategies, rollback/health checks, and update security (signing, provenance)
  • Experience contributing to upstream open source projects (Linux kernel, system components) and managing long-lived downstream patches responsibly

What we offer

  • Medical, dental, and vision insurance for you and your family, with employer contributions to Health Savings Accounts
  • Pre-tax accounts for Health FSA, Dependent Care FSA, and commuter expenses (parking and transit)
  • 401(k) retirement plan with employer match
  • Paid parental leave (up to 24 weeks for birth parents and 20 weeks for non-birthing parents), plus paid medical and caregiver leave (up to 8 weeks)
  • Paid time off: flexible PTO for exempt employees and up to 15 days annually for non-exempt employees
  • 13+ paid company holidays, and multiple paid coordinated company office closures throughout the year for focus and recharge, plus paid sick or safe time (1 hour per 30 hours worked, or more, as required by applicable state or local law)
  • Mental health and wellness support
  • Employer-paid basic life and disability coverage
  • Annual learning and development stipend to fuel your professional growth
  • Daily meals in our offices, and meal delivery credits as eligible
  • Relocation support for eligible employees
  • Additional taxable fringe benefits, such as charitable donation matching and wellness stipends, may also be provided
  • Offers Equity
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