iOS Engineer, ChatGPT Mobile Infrastructure
Core
Building foundational Swift frameworks, CI/CD pipelines, and internal tooling to scale iOS development for AI products like ChatGPT, Atlas, and Sora.
Role type
Staff+ iOS Platform Engineer
Builds
Cross-app Swift frameworks (caching, state management, observability), CI/automation tooling, and performance optimization for mobile AI apps.
Domain
Mobile AI Infrastructure / iOS Platform Engineering
Deliverable
production ML models | product features | infrastructure
Required skills
Swift, concurrency, networking, Xcode ecosystem, UIKit/SwiftUI, system architecture, performance profiling, reliability engineering, internal tooling development, metrics definition, cross-team collaboration
Preferred skills
AI developer productivity focus, Bazel experience, Codex agent systems knowledge, ambiguity navigation
Technologies
Swift, Bazel, Xcode, UIKit, SwiftUI, Codex
Responsibilities
Build and evolve foundational Swift frameworks used across multiple apps; Improve app performance through profiling and architecture patterns; Strengthen reliability by reducing crashes and improving error handling; Embed with product teams to identify infrastructure needs; Develop internal tooling and automation to increase engineering velocity; Translate real-world constraints into clean abstractions and APIs.
Seniority
Staff+, hands-on IC with strategic impact