Senior Android Developer (f/m/d)
Core
Develop and optimize the adjoe Ads SDK (native Kotlin/Swift) running inside hundreds of publisher apps to support real-time bidding and user quality predictions.
Role type
Senior Android SDK Engineer (AdTech)
Builds
Native mobile SDKs for programmatic in-app advertising
Domain
AdTech / Mobile Development
Deliverable
production ML models
Required skills
Kotlin, Android lifecycles, ProGuard/R8, multithreading, API design, gRPC, Protobuf, Wire, OkHTTP, resource-constrained optimization, CI/CD (Gradle, GitLab CI), observability (Sentry, Kibana, AWS)
Preferred skills
AdTech/programmatic advertising experience, NDK/JNI (C/C++), iOS development
Responsibilities
Own core development and optimization of the adjoe Ads SDK; design high-performance APIs for behavioral signals; optimize SDK footprint for battery and memory; monitor and debug SDK reliability at scale; maintain CI/CD pipelines for SDK delivery
Seniority
Senior, hands-on IC