Native Android / iOS Developer

TheCodingShef; Bengaluru; On-site; INR 1,500,000 - 2,800,000; Full time

Job summary

TheCodingShef in Bengaluru is seeking a mid-level Native Android/iOS Developer to build and maintain native SDKs in Kotlin/Java for Android and Swift/Objective-C for iOS, with a focus on performance and backward compatibility.

You will work across platform security, device fingerprinting, RASP and integration with partner apps, while shipping robust CI/CD pipelines and tooling for partner teams.

Qualifications

• 2–6 years of hands-on native mobile development experience (Android and/or iOS).
• Proven experience building and shipping SDKs consumed by external partners with a focus on versioning and backward compatibility.
• Strong understanding of device security: root/jailbreak detection, anti-tampering, obfuscation.

Responsibilities

• Build and maintain native Android (Kotlin/Java) and iOS (Swift/Objective-C) SDKs.
• Own SDK architecture, versioning, and backward compatibility across partner and OS versions.
• Optimize SDK size, cold-start latency, and memory footprint.
• Write integration docs, sample apps, and support tooling for partner teams.

Skills

Android SDK

Kotlin

Java

iOS SDK

Swift

Security depth

NDK

C++

CI/CD

API design

Tools

ProGuard/R8

DexGuard

iXGuard

Frida

Xposed

Cydia Substrate

Jadx

Job description

# Native Android / iOS DeveloperOTPlessBengaluruMid-levelPosted 5d agoApply on employer siteYou apply on the employer's own page. Never pay to apply for a job.## About the roleKotlinJavaCI/CDNDK / C++PerformanceREST / GraphQLThe core responsibilities for the job include the following:\\*SDK Engineering:\\*\\* Build and maintain native Android (Kotlin/Java) and iOS (Swift/Objective-C) SDKs used by bank, fintech, and startup apps.\\* Own SDK architecture, versioning, and backward compatibility across partner and OS versions.\\* Optimize SDK size, cold-start latency, and memory footprint.\\* Write integration docs, sample apps, and support tooling for partner teams.\\*Device Security and Anti-Fraud:\\*\\* Build and harden root/jailbreak, emulator, debugger, and hooking-framework detection (Frida, Xposed, Cydia Substrate).\\* Build device fingerprinting for fraud and risk signals.\\* Implement RASP: obfuscation, tamper detection, integrity checks, and anti-repackaging.\\* Track emerging bypass techniques and patch proactively.\\* Feed device signals into the fraud detection engine, working with the security and ML teams.\\*Platform and Ecosystem:\\*\\* Work fluently across Android (Kotlin, NDK where relevant) and iOS (Swift, Objective-C).\\* Integrate biometrics, Android Keystore, iOS Keychain/Secure Enclave, Play Integrity API, and App Attest.\\* Define secure SDK-to-server protocols: token exchange, certificate pinning, replay protection.\\* Support partner integration, testing, and certification directly.\\*Quality, Release, and Support:\\*\\* Test across a wide matrix of real devices, OS versions, and manufacturers.\\* Own crash-free rate, ANR rate, and SDK stability in production.\\* Build and maintain CI/CD for SDK builds, testing, and staged rollouts.\\* Provide L2/L3 support for partner integration issues.\\*Requirements:\\*\\* 2-6 years of hands-on native mobile development experience (Android and/or iOS). Strong depth on one platform with working knowledge of the other is fine.\\* Proven experience building and shipping SDKs (not just apps) consumed by external partners, with an understanding of versioning, backward compatibility, and public API design.\\* Solid understanding of device security fundamentals: root/jailbreak detection, anti-tampering, code obfuscation.\\* Working knowledge of device fingerprinting techniques and privacy-conscious identity signal generation.\\* Familiarity with RASP concepts and implementation: runtime integrity checks, hooking/injection detection.\\* Strong grasp of platform security primitives: Android Keystore / Play Integrity API, iOS Keychain / Secure Enclave / App Attest.\\* Comfort working across Kotlin/Java (Android) and/or Swift/Objective-C (iOS).\\* Experience debugging across a wide range of real devices and OS versions, not just emulators.\\*Good to Have:\\*\\* Experience with obfuscation/protection tooling (ProGuard/R8, DexGuard, iXGuard, or similar).\\* Familiarity with the reverse-engineering tools attackers use (Frida, Xposed, Cydia Substrate, jadx, and Hopper), since understanding offense sharpens defense.\\* Experience integrating with banking or fintech apps, or working under RBI/PCI-DSS-adjacent constraints.\\* NDK/C++ experience on Android, or low-level iOS security work.\\* Experience with certificate pinning, mutual TLS, or other secure-transport hardening.\\* Contribution to a published SDK/library with real external developer adoption.