This page highlights a selection of production mobile applications I've worked on. The focus is on real-world technical challenges, long-term maintenance and systems that needed to remain reliable as they evolved.
IMKO Connect
Mobile application used for collecting measurement data from professional hardware devices. The app relies on a custom internal Bluetooth communication layer implemented natively in Kotlin and Swift, designed to support reliable data transfer and offline scenarios.
Designing and maintaining a native Bluetooth communication layer in Kotlin and Swift.
Natur Digital
Map-based mobile application for nature lovers discovering hiking routes and location-based content. The app focuses on efficient map rendering and native geofencing functionality, including notifications for nearby points of interest.
Managing map rendering performance with thousands of items displayed simultaneously.
JKP Vodovod i Kanalizacija Subotica
Mobile application and supporting web platform for utility services, allowing users to submit water meter readings, pay bills, and report issues. The system includes an internal dashboard used by utility employees to manage customer data, payments and notifications.
Designing and implementing secure payment flows across mobile, web and backend systems.
Hello Vajdaság
Mobile application focused on the Vojvodina region, aggregating events, accommodations, and local points of interest primarily for tourists. The app emphasizes scalable data organization and keeping time-sensitive information accurate and up to date.
Managing event-based data visibility by ensuring only active events are displayed while continuously updating changing content.