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About the Role

We are looking for an experienced Senior Mobile Ad Monetization Engineer to build, optimize, and maintain the advertising infrastructure across our client's Android applications. This is a hands-on position focused on developing high-performance ad delivery systems, improving SDK integrations, reducing latency, and maximizing advertising revenue. You will work closely with product, backend, analytics, and AI teams to deliver scalable monetization solutions without compromising the user experience.

Responsibilities

Design, develop, and maintain the mobile advertising infrastructure.
Integrate and manage multiple mediation SDKs, including AppLovin MAX, Google AdMob, and Unity LevelPlay.
Develop advanced ad loading, caching, preloading, and request management mechanisms.
Optimize key monetization metrics: Fill Rate, Match Rate, Show Rate, Impression Rate, eCPM, and overall revenue.
Build intelligent ad selection, placement logic, and Remote Config fallback systems.
Optimize memory usage, threading, lifecycle management, and SDK initialization performance to reduce crashes, ANRs, and latency.
Build internal debugging, logging, and telemetry tools, alongside A/B testing infrastructure.
Collaborate with backend engineers on server-driven monetization.

Requirements

5+ years of commercial Android development experience.
Strong programming skills in Kotlin and Java.
Deep understanding of the Android SDK and app lifecycle.
Proven experience integrating mediation platforms (AppLovin MAX, AdMob, Unity LevelPlay, or Google Ad Manager).
Experience optimizing ad loading performance, latency, and multithreading.
Familiarity with Firebase, Remote Config, Analytics, Crashlytics, and BigQuery.
Experience with REST APIs and backend-driven configurations.

Skills

Kotlin
Java
Android SDK
AppLovin MAX
Google AdMob
Unity LevelPlay
Google Ad Manager
Firebase
Remote Config
Analytics
Crashlytics
BigQuery
REST APIs
Custom mediation adapters
RTB (Real-Time Bidding)
Server-driven monetization
AI-based optimization
CI/CD

Location

Remote

Work Type

100% remote
B2B contract

Experience Level

Senior

Salary/Compensations

€4,600 - €7,000 per month

About the Company

Our client is a fast-growing, profitable mobile app company building AI-powered consumer applications used by millions of users worldwide.