[Hiring] Senior Android Developer @Sigma Software

Role Description

Join a project where your work directly impacts large-scale mobile monetization platforms used by publishers worldwide. We are looking for a Senior Android Developer with strong expertise in native Android SDK development and production-grade mobile engineering.

You will work remotely with a distributed team on maintaining and enhancing open-source Android SDKs integrated into real mobile applications at scale. This role is ideal for engineers who enjoy solving complex architectural and release-quality challenges beyond standard application development.

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 SDKs support:

• Banner and video advertising
• SSP communication
• Beacon and pixel tracking
• Timeout handling
• Publisher-side integration processes

The team works in a release-critical environment where stability, backward compatibility, and SDK reliability are essential. This is an opportunity to contribute to scalable open-source SDK solutions already used in production rather than building a product from scratch.

Key Technologies: Kotlin, Java, Android SDK, Maven Central, JitPack, Gradle, Automated Testing

• 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

Qualifications

• 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

Requirements

• 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