emergiTEL is hiring a Mobile Developer for our client in the Digital identity industry. This is a Permanent role.

(English) The Mobile Developer owns the native iOS and Android SDKs that partners embed in their own applications, serving as the client-side entry point to identity and fraud-prevention services, including SIM-based authentication aligned with GSMA standards. This is SDK engineering rather than app engineering. The role covers the full product surface, including public API design, deep platform and mobile-networking work, packaging and release, reference applications, and integration documentation.

Own the design, development, testing, and release of the native iOS (Swift) and Android (Kotlin) SDKs end to end. Design public SDK interfaces that are small, hard to misuse, and stable across releases, with deliberate versioning, deprecation, and backward-compatibility practices. Handle the realities of mobile networks, including Wi-Fi and cellular transitions, dual-SIM and eSIM devices, captive portals, carrier variation, timeouts, and retry behaviour.

Keep the SDK lightweight and dependency-light by minimizing binary footprint, avoiding transitive dependency conflicts inside host applications, and collecting no more data than an integration requires. Own SDK distribution and release engineering, including Swift Package Manager, CocoaPods, XCFramework, Maven Central/Gradle, signed artifacts, changelogs, and reproducible CI builds. Define a test strategy appropriate to code that cannot be hot-fixed in production, including unit tests, instrumented and device-farm testing across OS versions and device models, and simulated carrier conditions.

Support partner integration teams by triaging integration issues,



reproducing customer-reported failures from logs, and feeding that feedback into API and documentation improvements. Instrument the SDK for diagnostics and error reporting that helps partners debug quickly without exposing end-user data. Track iOS and Android platform releases and proactively address breaking changes in permissions, privacy manifests, and network stack behaviour.

Actively participate in agile ceremonies as part of a Scrum team, helping drive feature delivery and platform modernization. Degree in Computer Science, Software Engineering, or equivalent practical experience. ~Experience building and shipping SDKs or libraries consumed by third-party developers is a strong asset. ~ Swift for iOS and Kotlin for Android. ~ Proven public API design skills, including interface design, semantic versioning, deprecation strategy, thread-safety guarantees, and clear error-handling contracts. ~ Strong understanding of mobile networking, including certificate handling, connection lifecycle, radio and Wi-Fi transitions, and behavior under unreliable network conditions. ~ Experience packaging and distributing libraries using Swift Package Manager, CocoaPods, XCFramework, Maven Central/AAR, including artifact signing and release processes. ~ Solid asynchronous and concurrency skills using Swift Concurrency/GCD and Kotlin Coroutines.



~ Solid automated testing discipline for library code, including mocking network layers and testing across OS versions and device configurations. ~ Security-conscious mindset with experience in secure storage (Keychain, Android Keystore), certificate pinning, code obfuscation, and careful handling of personal information. ~ Prior experience at a vendor shipping SDKs into regulated customer environments such as banks, fintechs, or insurers, including security review, penetration testing, and SBOM processes. Familiarity with device attestation and anti-fraud signals, including App Attest, DeviceCheck, Play Integrity, and root/jailbreak or emulator detection.

Experience wrapping native SDKs for cross-platform frameworks such as React Native, Flutter, or Cordova. Backend familiarity with Python, Java, and REST API design sufficient to help shape the service contracts consumed by the SDK. Contributions to open-source mobile libraries, public technical writing, or developer advocacy.

Has shipped code that other developers depend on and demonstrates excellent SDK design principles with small, intuitive, and reliable interfaces. Equally comfortable working in Swift and Kotlin. Interested in understanding mobile networking behaviour at a deep level.

Treats unclear integration documentation as a product quality issue and continuously improves developer experience. Balances platform expertise, technical rigor, reliability, security, and usability in every release. This is an active position currently open for hiring. / Use of Artificial Intelligence / Utilisation de l'intelligence artificielle No artificial intelligence (AI) is used in the screening or selection process.

📌 Developer - C#, .Net , SQL (Toronto)
🏢 emergiTEL
📍 Toronto