Senior Android Developer (Ad SDK Infrastructure)

Join a project where your work directly impacts large-scale mobile monetization platforms used by publishers worldwide. The customer operates in the mobile advertising technology industry and develops SDK solutions that help mobile publishers monetize their applications through in-app advertising infrastructure. Their products support ad delivery, rendering, analytics, and communication with advertising platforms while serving performance-sensitive production environments. The project focuses on the ongoing development and maintenance of native Android advertising SDKs distributed through Maven and integrated into third-party mobile applications. The team works in a release-critical environment where stability, backward compatibility, and SDK reliability are essential.

• 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

Nice to have:

• 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

• 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