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Android Engineer, ChatGPT Mobile Infrastructure

Mobile Developer • On-site • Full-time • 📍 San Francisco

This team builds the core Kotlin-based platform - from architecture to CI - that powers ChatGPT, Sora, and other fast-evolving Android apps; they're hiring Staff+ engineers specializing in performance, build/CI, or AI developer productivity.

Responsibilities

  • Build and evolve core Kotlin frameworks used across apps and platforms (caching, state management, observability, navigation, component systems)
  • Enhance app performance (startup, responsiveness, memory, battery) through profiling, monitoring, regression prevention, or architectural improvements
  • Increase reliability by reducing crashes, improving error handling, and driving release process improvements
  • Collaborate closely with product engineering teams to identify pain points and emerging infrastructure needs
  • Develop internal tooling and automation (CI, testing, guardrails, Codex agent skills and systems) to accelerate engineering velocity
  • Turn real-world constraints into simple abstractions: intuitive APIs, enforceable contracts, safe defaults

Requirements

  • Strong expertise in Android development (Kotlin, modern architecture patterns, Jetpack)
  • Gravitation toward platform challenges: frameworks, architecture, performance, or tools that empower other engineers
  • Ownership mindset: identifying key risks/opportunities, driving projects to completion, adapting quickly
  • Focus on measurement: instrumenting thoroughly, defining metrics, running experiments, iterating on data
  • Effective communication and collaboration for cross-team execution
  • Systems thinking and comfort with ambiguous challenges

Soft skills

Systems thinkingOwnership and initiativeStrong communication and collaboration

About the company

OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity, placing safety and human needs at the core of its work while attracting top talent in science, engineering, and business. Based in San Francisco, New York, or Seattle; remote candidates may be considered.

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