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Software Engineer, ChatGPT Infrastructure

OpenAI· Applied AI
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London, UK$194k - $280kFull-timePosted 11mo ago

About the role

Backend software engineer role focused on building and operating large-scale backend and infrastructure for ChatGPT, including distributed systems, performance, reliability, and production readiness.

Responsibilities

  • Design, build, and maintain backend systems supporting high-traffic ChatGPT experiences.
  • Develop shared services, APIs, and infrastructure that help product teams build and launch new capabilities safely.
  • Improve the performance, scalability, and efficiency of production systems as usage and product complexity grow.
  • Build and improve systems for asynchronous processing and other large-scale backend workloads.
  • Lead architectural improvements and infrastructure migrations while maintaining correctness, compatibility, and safe rollout and rollback.
  • Strengthen monitoring, alerting, and diagnostics to detect problems early and reduce customer impact.
  • Participate in on-call, incident response, and root-cause analysis, and turn operational learnings into lasting engineering improvements.
  • Work across product and infrastructure teams to ensure new systems are reliable, secure, and production-ready.
  • Build automation and tooling that reduce repetitive operational work and improve engineering effectiveness.

Qualifications

  • 4+ years of professional software engineering experience, including significant experience building backend or distributed systems.
  • Strong proficiency in at least one general-purpose programming language and experience writing reliable, maintainable production code.
  • Experience designing, building, or improving services, platforms, or shared infrastructure at scale.
  • Familiarity with production reliability practices, including monitoring, incident response, root-cause analysis, and operational readiness.
  • Experience diagnosing performance, scalability, or reliability issues in production environments.
  • Understanding of distributed systems, data storage, concurrency, asynchronous processing, or networking.
  • Familiarity with modern deployment, observability, and cloud infrastructure practices.
  • Ability to lead complex technical work and collaborate effectively across product and infrastructure teams.

Skills

Required:Backend systems at scaleProgramming languageDistributed systemsProduction reliability practicesPerformance/latency troubleshootingDeployment and rollout

Benefits

  • 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.
Last updated Sep 3, 2026. Interested? Apply on the company site.

About OpenAI

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