Senior iOS Engineer, Ads & Monetization Platform

NewsBreak•Mountain View, CA

2d•Onsite

About The Position

NewsBreak is seeking a Senior iOS Engineer to join their Ads & Monetization Platform team. This role is responsible for the end-to-end ownership of NewsBreak’s first-party monetization stack on iOS, including client-side functionality, ad rendering, viewability, event accuracy, and the client-side mediation layer. The engineer will integrate and maintain external ad SDKs, ensure production health of the iOS ad stack, and measure their own work through experiments. The team is small with a wide surface area, offering the opportunity to directly see the impact of code on revenue and own areas outright.

Requirements

3+ years of production iOS development in Swift and/or Objective-C.
Experience owning a meaningful module end to end — design, implementation, launch, and the aftermath.
Experience with ad rendering standards such as MRAID or OMID — or comparable experience rendering third-party content inside a native app.
Strong debugging instincts. You can work backward from a crash stack and sparse logs to a root cause without a reliable local repro, and you’re comfortable investigating systems you don’t have the source for.
Judgment about AI tools. You use AI coding assistants as part of your normal workflow, and you can articulate where they help you and where you override them.
Comfort with numbers. You’ve shipped behind experiments before and can reason about a metric moving without needing someone to interpret it for you.
Ownership. On a team this size, work isn’t handed to you pre-scoped — you spot problems, define them, and drive them to done. And you treat “it shipped” as the start of your responsibility, not the end.
Clear communicator who’s comfortable working directly with product, QA, and other non-engineers.

Nice To Haves

Mediation or in-app bidding experience
SDK development experience — public API design, backward compatibility, dependency discipline
Background in feed, video, or other latency-sensitive surfaces
Familiarity with mobile privacy and consent frameworks

Responsibilities

Build and maintain iOS ad functionality across our app and our publisher-facing SDK
Own ad rendering and the ad experience: how creatives load, display, and perform, for both rich-media and native formats
Own viewability and event accuracy — impressions, clicks, and billing signals have to be right, and they have to reconcile with what our partners measure
Own the client-side mediation layer: how we request, prioritize, cache, and fall back across demand sources
Integrate and maintain external ad SDKs (Google, Meta, and others) through version upgrades and platform changes, and own the tradeoffs when their behavior conflicts with ours
Own production health for the iOS ad stack — you’re the person who responds when something breaks, including problems originating inside vendor SDKs you can’t see into. Ad code ships in our app and in our publishers’ apps, so a rendering bug is an app stability problem, not just a bad ad
Measure your own work — ship behind experiments and be able to show that an experience change didn’t cost revenue