About the role

Design and optimize the core ad-monetization infrastructure and mediation SDKs for high-scale Android applications. Develop backend services and intelligent systems to maximize eCPM, fill rates, and overall ad revenue.

What they look for

Android Development Kotlin Java Ad-monetization RTB Header Bidding Ad Mediation AppLovin MAX AdMob Backend Services API Development Distributed Systems Data Analysis Performance Optimization Swift Machine Learning

Requirements

Requires strong hands-on expertise in Android engineering with Kotlin/Java and deep knowledge of the ad-monetization domain. Experience with mediation platforms like AppLovin MAX and AdMob, as well as backend service development, is essential.

Full description

We are looking for highly technical Senior Android Developer with deep ad-monetization expertise to build and optimize the ad-monetization stack directly inside our mobile applications. This is an Android-first engineering role: you'll write and own the Android (Kotlin/Java) code that integrates and optimizes mediation SDKs, ad placement, frequency, and bidding — backed by the backend services that drive real-time monetization decisions — to maximize revenue, fill rate, and eCPM on apps that reach millions of users.

Responsibilities:

Design, develop, and optimize the core monetization infrastructure across multiple mobile applications.
Improve ad waterfall and bidding performance to maximize eCPM, fill rate, ARPDAU, and total ad revenue.
Integrate and optimize mediation platforms (AppLovin MAX, AdMob, LevelPlay, etc.).
Build intelligent optimization systems for ad placement, frequency, segmentation, and pricing.
Develop backend services and automation tools for real-time monetization decisions.
Analyze monetization performance using large-scale data and implement data-driven improvements.
Optimize SDK integrations, latency, memory usage, and overall ad performance.
Work closely with Growth, Product, and Data teams to continuously increase LTV and user monetization.
Research and implement new monetization technologies, bidding strategies, and demand sources.

What you'll own

Increase overall monetization performance across millions of users.
Maximize fill rate, eCPM, advertiser competition, and total revenue.
Build the next generation of the monetization engine using automation and AI.
Deliver measurable business impact through engineering excellence.

Requirements

Must-have skills:

Android development (28%) — strong hands-on Android engineering in Kotlin/Java: Android SDK, app architecture, lifecycle, threading/concurrency, memory and performance optimization. This is the primary skill for the role.
Ad-monetization domain (20%) — deep understanding of RTB, Header Bidding, Waterfalls, Fill Rate, eCPM/CPM optimization, ARPDAU, and advertiser demand.
Ad mediation platforms + mobile advertising SDKs (17%) — hands-on integration and optimization of mediation SDKs (AppLovin MAX, AdMob, IronSource, LevelPlay).
Software development (15%) — solid backend services, APIs, distributed systems, and performance optimization to power real-time monetization decisions.
Analytical, data-driven optimization (12%) — analyze large-scale monetization data and implement data-driven improvements.
High-scale consumer app experience (8%) — experience with high-scale consumer applications reaching millions of users.

Nice-to-have skills:

iOS development (Swift) — a plus but not required; this is an Android-first role.
Hands-on with AppLovin MAX, Google Ad Manager, AdMob, Unity Ads, or IronSource.
Building internal optimization engines using AI or Machine Learning.
Familiarity with attribution, user segmentation, A/B testing, and predictive monetization models.