About the role

Sydney | 12 Month Contract

This is a specialist engineering position focused on building mobile SDKs embedded within enterprise client applications. The work is systems-level in nature and not focused on UI or feature development. The SDKs operate behind the scenes, capturing device and behavioural data used in fraud detection and risk analytics.

Key responsibilities

- Design and develop mobile SDKs across Android and iOS
- Optimise performance, memory usage and concurrency
- Debug platform-specific issues and edge cases
- Contribute to SDK integration across cross-platform frameworks (React Native, Flutter, Xamarin)
- Participate in code reviews, testing and CI/CD

Required experience

- Strong background in systems-level programming
- Memory management
- Multithreading / concurrency




- Performance optimisation
- Proficiency in:
- C / C++
- Objective-C (iOS)
- Experience working on mobile SDKs, frameworks, or embedded components
- Familiarity with Android NDK, Xcode, Gradle or similar tooling

Nice to have

- Experience in security, fraud, or device intelligence environments
- Exposure to cross-platform mobile frameworks

Please email your CV to Silvia Williams at Balance applying below.

Balance Recruitment is committed to equal chance employment. We celebrate diversity and encourage people from all sections of our community to apply for this role.

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📌 Senior Software Engineer, mobile SDK, Android (City of Sydney)
🏢 Balance Recruitment and Balance Consulting
📍 City of Sydney