Mobile Developer · Türkiye
“Founder of Baklavapp — building Flutter apps with Clean Architecture and BLoC, from a 30,000+ download reading app to production tools for real businesses.”
Hey, I'm Harun — a mobile developer with 6+ years of experience building cross-platform apps with Flutter, using Clean Architecture and BLoC. I'm the founder of Baklavapp, an independent app publishing label built around DeutschOwl (30,000+ downloads on Google Play), alongside three more apps of my own.
This site is a fake desktop environment built with Astro, TypeScript, and zero UI frameworks — a fun departure from the mobile apps I usually build, just to prove it could be done.
Outside of my own apps I freelance on production Flutter projects for real businesses — from security patrol systems to a historical site guide — and I'm still teaching myself German on the side, which is basically what got DeutschOwl started.
harun@portfolio
OSHarun Demir Linux x86_64
HostMobile Developer
Uptime6 years, 0 regrets
LocationTürkiye
DEportfolio-wm
ShellTypeScript + Astro
Terminalyou are looking at it
CPUFlutter / Dart
Memory8 core skills loaded
~/harun/projects $ ls -la
German reading app for beginner and intermediate learners — 100+ texts, migrated from GetX to Clean Architecture and BLoC. The flagship app of Baklavapp, my independent app label — 30,000+ downloads on Google Play.
English reading practice app with 30+ texts for beginner and intermediate learners, migrated from GetX to Clean Architecture and BLoC — 1,000+ downloads on Google Play.
Flag quiz game covering 6 continents and 200+ flags, built with GetX — 500+ downloads on Google Play.
Unit converter supporting 12 categories — length, weight, time, temperature, and more — with multi-language support, published on Google Play.
~/harun/projects/freelance $ ls -la
for Çanakkale Savaşları Gelibolu Tarihi Alan Başkanlığı
Historical area guide for the Gallipoli Historical Site — battlefields, cemeteries, monuments, and museums. Fixed significant bugs and restructured the app for Android and iOS.
for Cytechnoware
QR-based security patrol app for a security company — scans QR checkpoints across specific building areas to check and log patrols.
for Cytechnoware
Enhanced follow-up to Promek Guard — a next-generation version of the same QR-based security patrol system.
for Cytechnoware
Currency exchange app developed for a Turkish exchange office.
for XamDesign
E-commerce shoe store app with 30+ screens, built for sale on Envato CodeCanyon.
tail -f experience.log
Baklavapp
Founded and operate Baklavapp, an independent app publishing label built around DeutschOwl, a German reading app for beginner and intermediate learners with 30,000+ downloads on Google Play. Also own and maintain three additional Flutter apps (English Reading, Flag Explorer, UnitSphere), overseeing product strategy, development, and store operations across the portfolio.
PMS Mobile (Client Project)
Maintained the employee expense tracking system for a client as a freelance Flutter developer.
Cytechnoware
Delivered production Flutter apps for multiple clients, including a QR-based security patrol system and a currency exchange app for an exchange office. Deployed and maintained client apps on Google Play, handling store submissions and post-launch support.
Naval Non-Commissioned Officer Vocational School
Assisted with basic-level instruction in Microsoft Word, Excel, and PowerPoint, and with introductory-level instruction in C# and MSSQL.
Sportist
Took part in the development of Sportist, an app with 100k+ users, continuing as a freelance contributor after December 2022. Optimized exercise listings, resolving performance issues from animated GIF integration (75% increase in system efficiency), built running-exercise tracking with route visualization on a map, implemented the onboarding flow, and integrated an initial GetX structure for future use.
Fırat University
Developed a food recipe app using Flutter for the frontend and Laravel for the backend.
Perasis
Developed a medical prescription app in Flutter and implemented push notifications using OneSignal.
cat education.log
Fırat University
Katowice Institute of Information Technologies
#!/bin/sh # contact.sh — reach out any time echo "Currently open to new opportunities."
process exited with code 0
Mobile Developer · Türkiye
github.com/harundemir918 · harundemir.org
Hey, I'm Harun — a mobile developer with 6+ years of experience building cross-platform apps with Flutter, using Clean Architecture and BLoC. I'm the founder of Baklavapp, an independent app publishing label built around DeutschOwl (30,000+ downloads on Google Play), alongside three more apps of my own.
Baklavapp
Founded and operate Baklavapp, an independent app publishing label built around DeutschOwl, a German reading app for beginner and intermediate learners with 30,000+ downloads on Google Play. Also own and maintain three additional Flutter apps (English Reading, Flag Explorer, UnitSphere), overseeing product strategy, development, and store operations across the portfolio.
PMS Mobile (Client Project)
Maintained the employee expense tracking system for a client as a freelance Flutter developer.
Cytechnoware
Delivered production Flutter apps for multiple clients, including a QR-based security patrol system and a currency exchange app for an exchange office. Deployed and maintained client apps on Google Play, handling store submissions and post-launch support.
Naval Non-Commissioned Officer Vocational School
Assisted with basic-level instruction in Microsoft Word, Excel, and PowerPoint, and with introductory-level instruction in C# and MSSQL.
Sportist
Took part in the development of Sportist, an app with 100k+ users, continuing as a freelance contributor after December 2022. Optimized exercise listings, resolving performance issues from animated GIF integration (75% increase in system efficiency), built running-exercise tracking with route visualization on a map, implemented the onboarding flow, and integrated an initial GetX structure for future use.
Fırat University
Developed a food recipe app using Flutter for the frontend and Laravel for the backend.
Perasis
Developed a medical prescription app in Flutter and implemented push notifications using OneSignal.
Fırat University
Katowice Institute of Information Technologies
Flutter / Dart · Clean Architecture & BLoC · GetX · Kotlin / Java · Flutter Ecosystem (fpdart, go_router, Dio) · CI/CD (GitHub Actions, Fastlane) · Laravel & MySQL · Git
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