Amanpreet Singh Chalga

Currently leading frontend dev for YoApp, a retail marketplace app (like Amazon), and contributing to iBill, a billing solution with barcode scanning. Leading a 3-member team using React Native + TypeScript, building reusable components, wishlist/cart/product APIs. For iBill, built Android UI & logic with Kotlin/Java. Translated Figma to production-ready layouts, integrated Redux Toolkit + Firebase for state & real-time data. Stack: Kotlin, Java, React Native, TS, Redux, Firebase.

Utility app to “paint” walls virtually using camera, ARCore, and ML Kit. Implemented UI from Figma and fine-tuned wall-detection accuracy. Explored different approaches for color overlays: ML prediction vs AR detection.

Worked on Holiday Homes Booking app, a centralized Android application for booking govt. guest houses across India. Contributed to backend integration, UI, and testing. Built booking/reservation modules in Java (XML, Android SDK), integrated RESTful APIs with OkHttp, and implemented local persistence via SQLite. Collaborated with senior devs to refine UX, wrote JUnit tests, and performed end-to-end debugging for staging and release. Tech Stack: Java, Android SDK, XML, SQLite, OkHttp, JUnit.

Built & deployed two Android applications for national health initiatives — a Cancer Screening app and a labor monitoring system, both designed for tablet interfaces and used by clinical staff. Developed dynamic form Android app with over 500 medical questions, an interactive labor monitoring system with graphical deviation alerts using custom charts and Plot APIs. Architected both apps from scratch with SQLite persistence, REST API sync (via OkHttp), and dynamic UI rendering based on JSON definitions.

Core Modules - Fundamentals of Programming (Java) - Advanced Java Programming - Internet of Things (IoT) - Robotics (Python) - Embedded Systems (C) - Workshop Cryptography (C)