Senior Android Developer

Description Why GeoEdge? GeoEdge is the global leader in ad security and quality, trusted by hundreds of the world's top ad platforms, publishers, and app developers. Our mission is simple: make the internet safer by stopping malicious, deceptive, and low-quality ads before they ever reach a user. AppHarbr is our mobile division, born from that same DNA. We build a lightweight, robust mobile SDK that integrates directly into apps to give publishers real-time control over ad quality, proactively blocking disruptive, intrusive, malicious, and offensive ads before they ever reach users. Trusted by industry leaders, AppHarbr sits at the intersection of mobile performance and ad security, protecting user experience at scale across some of the world's most widely used apps. The Role We're looking for a Senior Android Developer to take a key role in building and evolving our Android SDK. This isn't UI or app development. You'll be working deep in the stack, focused on efficiency, scalability, and stability, in a product that runs inside some of the most widely used mobile apps in the world. You'll also have the opportunity to grow into iOS development as part of your journey here. Responsibilities Develop and maintain our Android SDK with a focus on performance, scalability, and stability Design and implement new features in close collaboration with teammates and cross-functional partners Dig deep into Android internals to understand and solve complex technical challenges Continuously evaluate and adopt new technologies to improve how we build Requirements 3+ years of Android development experience Strong proficiency in Kotlin and Java, with solid grasp of OOP and functional programming principles Deep understanding of data structures, algorithms, and multithreading or coroutines Eagerness to learn and take on iOS platform development Experience in SDK development is a significant advantage; our work is SDK-focused, not UI or application development Strong Advantages Knowledge of Swift Background in mobile ad tech or publisher-side integrations Experience working on SDKs embedded in third-party apps Working at GeoEdge We're a focused, talented team that cares about craft and impact. You'll work on a product that runs at scale inside real apps, with the autonomy to go deep and the support of people who genuinely love what they build. 📩 Sound like you? We'd love to hear from you.