Senior Android Developer (Ad SDK Infrastructure)

Sigma Software · Remote, Kyiv, Kyiv city, ua

No longer accepting applicationsMid-Senior LevelFull-time

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  • Develop, enhance, and maintain native Android SDKs used in production environments
  • Implement new SDK features and improve existing functionality
  • Ensure SDK stability, backward compatibility, and release quality
  • Design and support SDK architecture, packaging, versioning, and release processes
  • Maintain Maven and Gradle distribution pipelines
  • Create and maintain automated and device-based testing solutions
  • Investigate and resolve SDK defects, integration issues, and publisher-reported problems
  • Collaborate with cross-functional teams to improve SDK reliability and performance
  • Participate in release planning, validation, and quality assurance activities
  • Support external publishers during SDK integration and troubleshooting
  • 4+ years of commercial Android development experience
  • Strong commercial experience with Kotlin and Java
  • Proven experience developing native Android SDKs or libraries
  • Strong understanding of Android SDK architecture and lifecycle
  • Hands-on experience with SDK packaging and distribution tools such as Maven Central, JitPack, and Gradle plugins
  • Experience with versioning, release management, and dependency handling
  • Practical experience with automated testing and device-based testing
  • Strong focus on software quality and production reliability
  • Experience working in release-critical environments
  • Ability to troubleshoot complex integration and compatibility issues
  • Good communication skills and ability to work in a distributed team environment
  • Upper-Intermediate English level or higher WILL BE A PLUS
  • Experience with AI-assisted testing approaches and test coverage optimization
  • Understanding of mobile advertising technologies and AdTech ecosystems
  • Experience with SSP platforms and ad servers
  • Knowledge of banner and video advertising mechanics
  • Familiarity with tracking beacons and pixel-based analytics
  • Experience contributing to or maintaining open-source SDKs
  • Experience supporting third-party publisher integrations