iOS Engineer, ChatGPT Mobile Infrastructure

In this role, you may:

• Build and evolve foundational Swift frameworks used across multiple apps and platforms (caching, state management, observability, navigation, component systems).
• Improve app performance (startup, responsiveness, memory, battery) through profiling, visibility, regression prevention, or architecture patterns.
• Strengthen reliability: systemically reduce crashes, improve error handling, or drive release process improvements.
• Embed with product engineering teams in order to understand pain points or emerging infrastructure needs.
• Develop internal tooling and automation (Bazel, CI, testing, guardrails, Codex agent skills and systems) that increase engineering velocity.
• Translate messy real-world constraints into clean abstractions: simple APIs, enforceable contracts, safe defaults.

You might thrive in this role if you:

• Have strong iOS engineering fundamentals (Swift, concurrency, networking, Xcode ecosystem, some UIKit/SwiftUI) and are familiar with the latest features and practices.
• Gravitate towards platform problems: frameworks, architecture, performance, or tools that empower and accelerate others.
• Take ownership: continually identify the biggest risks/opportunities, drive projects to completion, and update quickly.
• Care about measurement: instrument, define metrics, run experiments, and iterate based on data.
• Have strong communication and collaboration skills—aligning on interfaces, navigating tradeoffs, and driving cross-team execution.
• Tend to think in systems, fight entropy, and enjoy an ambiguous challenge.