iOS Engineer, Ad Formats at Openai · Lumi · Lumi

Responsibilities

We’re looking for an iOS Engineer to help build the native iOS experiences and client-side systems that power how ads are structured, rendered, and delivered across OpenAI’s ads ecosystem. This role sits within the Ads Formats team, which owns the creative rendering and presentation layer for next-generation ads experiences across different surfaces and media types.
You’ll help build the iOS infrastructure and tooling that support formats such as text, image, video, native, conversational, and interactive ads, while ensuring they render reliably and perform efficiently across platforms. You’ll work closely with backend, Product, Design, Research, and Safety partners to shape iOS architecture that supports user-first, privacy-preserving monetization experiences within ChatGPT and OpenAI’s broader mobile ecosystem.
Build and ship ads format experiences on iOS, including text, image, video, native, conversational, and interactive ad surfaces.
Design and maintain shared iOS frameworks and primitives for ad rendering, creative presentation, media handling, format validation, and policy-aware UX patterns.
Own complex iOS systems end-to-end across UI architecture, networking, local persistence/state, observability, rendering performance, and release processes.
Build robust integrations with Apple platform and ecosystem components, including media playback, deep links, app lifecycle behavior, accessibility, privacy controls, and device capabilities.
Optimize performance, reliability, and responsiveness at global scale, including rendering quality, scrolling performance, startup time, media load latency, network resiliency, battery usage, and crash-free sessions.
Establish and evolve testing and quality systems, including unit, integration, snapshot/UI, automated regression, and release validation workflows.
Collaborate with Product, Design, Research, backend, and Safety to deliver ads experiences that meet OpenAI’s highest standards for safety, privacy, fairness, and policy compliance.
Provide technical leadership through architecture reviews, mentoring, and setting engineering standards across iOS ads formats and monetization surfaces.
You might thrive in this role if you
Have 4+ years of professional software engineering experience with significant iOS ownership.

iOS Engineer, Ad Formats

Responsibilities

Company

Openai

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