Lukas Lechner
Freelance Android Developer at Lukas Lechner - Software Developer
Ober-Grafendorf, Lower Austria
Summary
🤩
Rockstar🎓
Top SchoolLukas Lechner is a seasoned freelance Android developer with 11 years of experience, blending mobile engineering with backend (Spring Boot) know-how to deliver robust, user-focused apps. Based in Lower Austria, he has shipped features for high-profile projects like the Corona-Warn-App and led Android development at enterprises including REWE and SAP. As an online course creator on Udemy and maintainer of practical Kotlin Coroutines and Flow sample apps, he translates complex concurrency patterns into testable, teachable implementations. He brings a strong accessibility and UX sensibility—evident from UI, formatting, and accessibility fixes on production apps—and a background in medical computer science that informs his disciplined, data-aware approach.
11 years of coding experience
7 years of employment as a software developer
Matura, Information Technology, Matura, Information Technology at HTL KremsDiplom-Ingenieurin (Dipl.Ing.), Medical computer science, Diplom-Ingenieurin (Dipl.Ing.), Medical computer science at Technische Universität Wien / TU Wien
German, English
Stackoverflow
8,041reputation
1.8mreached
43answers
26questions
android
top-5%
retrofit
top-1%
java
top-5%
tomcat
top-5%
Github Skills (26)
kotlin10
flow-control10
work-flow10
ui-design10
android-recyclerview10
uid10
front-end-development10
android10
control-flow10
flowtype10
recyclerview10
coroutines10
retrofit10
accessibility9
java9
Programming languages (4)
Github contributions (5)
LukasLechnerDev/Kotlin-Coroutines-and-Flow-UseCases-on-Android
Mar 2020 - Jan 2023
🎓 Learning Kotlin Coroutines and Flows for Android by example. 🚀 Sample implementations for real-world Android use cases. 🛠 Unit tests included!
Role in this project:
Mobile Developer (Android)
Mobile Developer (Android)Contributions:322 commits, 5 PRs, 296 pushes in 2 years 10 months
Contributions summary:Lukas primarily contributed to the initial setup and development of an Android application focused on demonstrating Kotlin Coroutines and Flows use cases. Their work included setting up the basic project structure, defining use cases with descriptions and target activities, and implementing the UI for the application, including RecyclerViews and custom views. The user also refactored view classes and added various use cases. The user demonstrated the ability to create and design the UI for the app with appropriate widgets and interactions.
casesimplementationsuse-casesflowskotlin-flow
corona-warn-app/cwa-app-android
Jan 2021 - Mar 2022
Native Android app using the Apple/Google exposure notification API. The CWA development ends on May 31, 2023. You still can warn other users until April 30, 2023. More information:
Role in this project:Mobile Developer (Android)
Mobile Developer (Android)Contributions:784 reviews, 118 commits, 149 PRs in 1 year 2 months
Contributions summary:Lukas was focused on implementing and enhancing features within the Android application. Their contributions included creating number formatters for statistical values, adding accessibility features, and developing the screen for 7-day incidence. They also addressed bugs related to the user interface and fixed issues with decimal place formatting and accessibility features, demonstrating a focus on both functionality and user experience. Additionally, they made improvements to the handling of errors and system-time dependent text.
apinotification-apiexposure-notification-apiexposure-notificationandroid
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