Senior iOS Ads Engineer - AI-Native, Remote-First

Life360

Oregon

Hybrid

USD 119,000 - 217,000

Full time

5 days ago

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Benefits offered by this job

Medical, dental, vision

401(k) plan

Parental leave

Life and disability insurance

Remote-first environment

Job summary

Life360 is seeking a Senior Software Engineer II for Mobile, On App Ads, to advance our iOS ads stack and AI-native development. You’ll own the in-house ads SDK, header-bidding, consent, and ad formats while ensuring a great member experience for families across iOS and Android.

You’ll work with 300M+ daily ad requests and 10+ partners. You’ll lead with Swift, collaborate across teams, and contribute to AI-driven workflows, testing, and platform enhancements that move monetization forward

Qualifications

6+ years of iOS engineering experience shipping production apps at consumer scale.
At least 1 year of hands-on experience prompting, evaluating, and building with LLMs.
Strong proficiency in Swift, SwiftUI, and UIKit, plus deep familiarity with the modern iOS toolchain (Xcode, Swift Concurrency, Combine).
Experience with iOS architecture patterns (MVVM, coordinators, dependency injection, modularization with SPM or CocoaPods) in a large, multi-team codebase.
Experience integrating and debugging third-party SDKs in production, including version upgrades, behavior inside closed-source binaries, and their effect on app size and performance.
Solid grounding in iOS performance, memory, and crash diagnostics (Instruments, MetricKit, Crashlytics or equivalent).
Experience with CI/CD for iOS (Fastlane, Xcode Cloud, Buildkite, GitHub Actions, or similar).
Hands-on experience with agentic workflows, prompt engineering, context-window management, and MCP/function calling.
Bachelor's degree in a technical field, or equivalent experience.

Responsibilities

Design, build, and maintain the iOS ads layer: our in-house ads SDK, demand partner and header-bidding integrations (e.g., Prebid, Google Mobile Ads/GAM), and mediation.
Introduce new ad formats, placements, and capabilities that grow revenue while protecting startup time, scroll performance, and the member experience.
Own privacy and consent on iOS: ATT, IDFA handling, SKAdNetwork/AdAttributionKit, and consent frameworks (TCF/GPP). Make sure ads behave correctly in every region and under every user setting.
Protect ad quality. Detect and block bad creatives, diagnose rendering and fill issues, and partner with ad ops to resolve problems fast.
Instrument ad events (requests, impressions, clicks, and revenue signals) accurately, so the revenue and A/B test results the business relies on can be trusted.
Run A/B tests on ads configuration, such as floors, refresh, placements, and partner mix, and turn the results into the next decision.
Work with AI (Claude Code) as a first-class collaborator. Your main workflow is orchestrating agents to write specs, generate Swift code and tests, verify results, and review changes.
Partner closely with product, ad operations, data science, and partner engineering teams at third-party SDK vendors.
Contribute to architectural decisions, code reviews, and a culture of craft and continuous improvement on the iOS codebase.
Take part in the on-call rotation and incident response for ads and mobile releases.
Mentor teammates and help set technical standards for the team.