Company: Gentrac Labs Pvt Ltd

Product: HbPRISM — AI-powered smartphone diagnostic application

Experience: 5+ Years

Employment Type: Full-time/ Part-time

Location: Hybrid / On-site (Noida/ Delhi)

Role Overview

We are looking for a Senior Mobile Application Developer with strong experience in native iOS and Android development and integration with ASP.NET Core REST APIs.

The developer will work on a mobile application involving camera-based image capture, real-time processing, cloud API integration, offline data synchronization, and cross-platform business logic.

Key Responsibilities

Mobile Application Development

- Develop and maintain native iOS applications using Swift / SwiftUI.
- Develop and maintain native Android applications using Kotlin / Jetpack Compose.
- Implement camera functionality using:

o AVFoundation on iOS o Camera2 / CameraX on Android

- Implement image capture, camera controls, validation, and real-time preview workflows.
- Integrate native C/C++ components using JNI on Android and Objective-C++ on iOS.
- Implement and maintain shared business logic using Kotlin Multiplatform (KMP).
- Ensure consistent application behaviour across iOS and Android.
- Implement local data storage and offline-first synchronization.

ASP.NET Core API Integration

- Integrate mobile applications with ASP.NET Core REST APIs.
- Implement API communication for data creation, retrieval, updates, and synchronization.
- Handle authentication, API errors, retries, timeouts, and network failures.




- Implement reliable offline-to-online data synchronization.
- Work with backend developers to define and consume API contracts and data models.
- Handle JSON serialization/deserialization and API versioning.

Testing & Build

- Develop unit, integration, and API integration tests.
- Perform cross-platform regression testing.
- Troubleshoot iOS and Android build/dependency issues.
- Work with Xcode, Gradle, CocoaPods, Android NDK, and CMake where required.
- Participate in code reviews and maintain clean, scalable mobile architecture.

Required Technical Skills

- 5+ years of mobile application development experience.
- Strong experience in both iOS and Android native development.
- Strong knowledge of:

o Swift / SwiftUI o Kotlin / Jetpack Compose o AVFoundation o Camera2 / CameraX
- Experience with REST API integration and ASP.NET Core APIs.
- Positive understanding of JSON, authentication, error handling, and API communication.
- Experience with offline data storage and synchronization.
- Working knowledge of C++, JNI, and Objective-C++ is preferred.
- Experience with Kotlin Multiplatform (KMP) is preferred.
- Familiarity with Git and CI/CD processes.

Preferred Skills

- Experience with camera-based or image-processing mobile applications.
- Experience integrating AI/ML APIs with mobile applications.
- Experience with AWS/cloud-hosted APIs.
- Experience in healthcare or regulated applications is an advantage.

📌 Senior Mobile Application Developer (Noida)
🏢 Gentrac Labs
📍 Noida