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Schedule Interview NowMy name is Matej K. and I have over 2 years years of experience in the tech industry. I specialize in the following technologies: Flutter, Dart, Android App Development, Kotlin, Java, etc.. I hold a degree in Master of Computer Science (MSCS), Master of Computer Science (MSCS). Some of the notable projects I’ve worked on include: Revlum Offerwall SDK Development, FootFact - Advanced Foot Measurement Flutter App, Spective Connect - IoT Android Application for Plant Operations, myKiK POS and Loyalty Flutter App for iOS and Android. I am based in Osijek, Croatia. I've successfully completed 4 projects while developing at Softaims.
My expertise lies in deeply understanding and optimizing solution performance. I have a proven ability to profile systems, analyze data access methods, and implement caching strategies that dramatically reduce latency and improve responsiveness under load. I turn slow systems into high-speed performers.
I focus on writing highly efficient, clean, and well-documented code that minimizes resource consumption without sacrificing functionality. This dedication to efficiency is how I contribute measurable value to Softaims’ clients by reducing infrastructure costs and improving user satisfaction.
I approach every project with a critical eye for potential bottlenecks, proactively designing systems that are efficient from the ground up. I am committed to delivering software that sets the standard for speed and reliability.
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Developed Android and iOS SDKs for Revlum to configure and launch an offerwall WebView, enabling users to earn rewards. The Android SDK utilized Jetpack Compose, Koin, Retrofit, MVVM, and DataStore, deployed as a binary to AWS S3. The iOS SDK was built with SwiftUI, UIKit, MVVM, and URLSession, supporting async/await and distributed as an XCFramework via GitHub releases. Additionally, created Flutter and React Native plugin packages, published on pub.dev and npm, ensuring seamless integration for cross-platform developers.
I led the enhancement of the FootFact, a machine learning-powered app for precise foot measurements. Upgraded camera functions improved precision, and the integration of Firebase Authentication streamlined user access. To support offline functionality, I implemented data fetching via Dio and local storage using Floor, enhancing reliability and user experience even without internet connectivity.
Led the development of Spective Connect, an IoT app enhancing plant operations by facilitating uninterrupted machine monitoring directly from excavators. Implemented MQTT for reliable communications, used Kotlin Coroutines and Room for robust data management, and integrated Firebase Analytics to track user interactions. The app features a dashboard displaying key data like production volume and fuel consumption, significantly increasing operational efficiency and safety.
As Lead Mobile Developer, I led the development of the myKiK POS and loyalty app for KiK Textile & Non Food B.V., a German client offering affordable fashion and household goods. Utilizing Flutter, Dart, Injectable, and Flutter Bloc, we built an app featuring a digital discount card that provides exclusive discounts, personalized offers, and a store locator. My role involved managing the team and overseeing streamlined CI/CD processes with DevOps for deployment to Dutch app stores, significantly enhancing operational efficiency and customer engagement.
Master of Computer Science (MSCS) in Computer science
2022-01-01-2022-01-01
Master of Computer Science (MSCS) in Computer science
2020-01-01-2023-01-01