Mobile Ad SDK Engineer

FitNext Co. · Remote

Get on Board Posted May 25, 2026 First seen May 26, 2026

This posting has been closed by the employer and is no longer accepting applications. The description is preserved below for reference.

  • 3+ years of experience building mobile SDKs or libraries (not just apps)
  • Strong proficiency in:
iOS (Swift)
Android (Kotlin)
  • Previous experience with Ad SDKs or AdTech
  • Hands-on experience with OMID integration
  • Deep understanding of the mobile ad lifecycle (request, bid, render, impression, click, conversion) Experience with verification vendors or viewability standards
Design and build production-ready native SDKs for:
  • iOS (Swift)
  • Android (Kotlin)
Support ad formats including:
  • Native
  • Rewarded video
  • Interstitial
Integrate the IAB Open Measurement SDK (OMID) and manage the full ad session lifecycle
Work with verification vendors (MOAT, IAS, DoubleVerify) to ensure measurement accuracy
Implement privacy and consent compliance:
  • TCF v2.2
  • GPP
  • ATT (iOS 14.5+)
  • COPPA
Monitor live ad traffic and signal integrity in production
Distribute SDKs via:
  • CocoaPods / SPM (iOS)
  • Maven Central (Android)
Provide clear integration documentation for partners

This is a critical role within a small, fast-moving, highly technical team building monetization infrastructure for the next generation of AI-driven consumer platforms. You will work directly with the founder/CEO and have full autonomy to make technical decisions and ship a production-ready SDK at scale. We are looking for an engineer to take full ownership of a Mobile Ad SDK, leading everything from architecture to certification and production monitoring. AI company from San Francisco, hiring remote from LATAM. Fast-paced, execution-driven culture, work directlywith the founders. Looking for people that want to grow with them.

  • Experience with OMID certification (IAB Tech Lab process)
  • Background in Ad Networks, SSPs, DSPs, or mediation platforms
  • Experience with VAST and video player integration (AVPlayer / ExoPlayer)
  • Familiarity with measurement edge cases (backgrounding, partial visibility, WebView)
  • Experience building cross-platform wrappers (React Native, Flutter, Unity)
  • Experience supporting high-scale SDKs (1M+ DAU)