Develop, maintain, and enhance native Android SDKs using Kotlin. Implement Android components, libraries, and API integrations. Integrate SDKs with payment APIs and backend services. Troubleshoot bugs and production issues. Develop unit and integration tests. Participate in code reviews, refactoring, and performance improvements. Support SDK releases, versioning, documentation, and sample applications. Support Flutter and React Native components, wrappers, and native bridges. Use AI-assisted tools such as Claude Code and Codex for development, debugging, testing, and documentation. Review, test, and validate all AI-assisted code before delivery. Support merchant integrations and technical go-live activities.