Native Android/iOS Developer

Job Description :

Key Responsibilities :

Mobile SDK Development :

- Develop, maintain, and enhance native Android SDKs using Kotlin/Java and/or iOS SDKs using Swift/Objective-C.

- Implement reusable SDK components and maintain clean, well-documented public APIs.

- Support SDK versioning, backward compatibility, and integration across different partner applications.

- Optimize SDK performance, startup time, memory usage, and application size.

- Create sample applications, integration guides, and technical documentation for partner developers.

- Troubleshoot SDK integration issues and provide technical support to internal and external teams.

Device Security and Anti-Fraud :

- Implement and enhance root and jailbreak detection mechanisms.

- Develop detection capabilities for emulators, debuggers, hooking frameworks, and suspicious runtime environments.

- Assist in implementing runtime application self-protection (RASP), including runtime integrity checks, tamper detection, and anti-repackaging measures.

- Implement device fingerprinting components to generate privacy-conscious device identity and risk signals.

- Work with security teams to identify vulnerabilities and improve mobile SDK protection.

- Investigate emerging mobile attack techniques and support security fixes and improvements.

Mobile Platform Security :

- Integrate platform security features such as Android Keystore, Play Integrity API, iOS Keychain, Secure Enclave, and App Attest, as applicable.

- Implement secure communication mechanisms between mobile SDKs and backend services.

- Work with certificate pinning, secure token handling, and replay protection.

- Apply secure coding practices to protect sensitive data and reduce the risk of reverse engineering.

- Maintain working knowledge of Android and iOS platform security guidelines.

Testing, Release, and Support :

- Test SDK functionality across real devices, OS versions, manufacturers, and device configurations.

- Write unit tests, integration tests, and automated regression tests.

- Debug crashes, ANRs, performance issues, and device-specific compatibility problems.

- Participate in SDK build and release processes, including CI/CD automation and staged releases.

- Monitor production issues and help maintain SDK stability and reliability.

- Support partner onboarding, integration testing, and release certification activities.

Required Skills and Qualifications :

- 3 - 5 years of hands-on native mobile development experience in Android and/or iOS.

- Strong proficiency in at least one platform :

i. Android : Kotlin, Java, Android SDK, Gradle.

ii. iOS : Swift, Objective-C, Xcode.

- Experience building SDKs, libraries, reusable components, or modular mobile frameworks; prior external partner SDK exposure is preferred.

- Understanding of SDK distribution, public API design, semantic versioning, and backward compatibility.

- Knowledge of mobile security fundamentals, including root/jailbreak detection, application tampering, and code obfuscation.

- Familiarity with RASP concepts, runtime integrity checks, and hooking or injection detection.

- Working knowledge of Android Keystore / Play Integrity API or iOS Keychain / Secure Enclave / App Attest.

- Experience debugging applications on real devices across multiple OS versions.

- Understanding of REST APIs, HTTPS, secure token handling, and client-server communication.

- Familiarity with Git, build systems, and mobile testing practices.

- Strong troubleshooting, analytical, and problem-solving skills