> Markdown version of [/jobs/ext/4618128-ios-engineer-applied-foundations](https://www.wearedevelopers.com/jobs/ext/4618128-ios-engineer-applied-foundations). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# iOS Engineer, Applied Foundations

- **Company:** OpenAI Inc.
- **Location:** Los Angeles, CA, United States
- **Experience:** Expert
- **Salary:** $255,000.0 - $310,000.0
- **Contract:** Permanent contract
- **Skills:** IOS Applications, Apple IOS, Apple Xcode, OpenAI, Software Engineering, Uikit, Swiftui, Ios Frameworks, Backend, Enterprise Integration
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/28_25196_7f108f1d5850ba81e8826ae2aad7d5c4

## About the Role

* Have 4+ years of professional software engineering experience.
 * Have a proven track record of building high-quality iOS applications in production, especially for systems that need to be reliable and resilient at scale.
 * Have owned complex, business-critical mobile systems end-to-end.
 * Have experience making deep architectural tradeoffs on iOS.
 * Are fluent in Swift and familiar with the Apple development ecosystem (Xcode, UIKit, SwiftUI).
 * Care deeply about performance, security, and user experience.
 * Enjoy working cross-functionally to bring ambitious product ideas to life.

## Description

You will be a Senior iOS engineer on OpenAI's Applied Foundations team, building the core mobile experiences that power how users sign up, manage their account, family features, pay for services, stay safe, and interact with OpenAI's products with confidence. This role is about creating high-quality products as well as reusable iOS foundations that product teams across different OpenAI apps depend on to ship quickly while meeting the highest standards for security, reliability, and user trust. You'll own complex client-side systems spanning UI, networking, local state, payment integrations and Apple platform integrations, and work closely with backend, product, and safety partners to shape the architecture that supports OpenAI's mobile ecosystem at global scale., * Design and maintain shared iOS frameworks and primitives for account, trust, and commerce flows that are used across OpenAI's mobile apps.

 * Establish robust testing frameworks and refine app architecture for long-term maintainability.
 * Collaborate with product, design, research, and backend teams to deliver high-impact features.
 * Provide technical leadership to shape the future of OpenAI's iOS platform.