Ahmed Haidar · Software engineer · Ankara, Türkiye
Make it work.Make it right.Make it hold.
Mobile, web and backend, built for real users and hardened against real attackers.
One person, the whole stack.
Flutter and Riverpod on the phone. Next.js and Astro on the web. Node, Django, PostgreSQL and Firebase behind them. Arabic, English and Turkish, with right-to-left done properly.
Founder & lead engineer · 2024 to now
Diwan Türkiye
The app for the parts of living in Türkiye nobody explains.
Residence-permit guides with the real fees and payment codes, emergency help, universities and community answers. Free on iOS and Android.
Also built
- DRAPOPatient-first healthcare reviews with a weighted ranking engine
- HalaHomeA hyperlocal marketplace for handmade crafts in Qatar
- Job RecommenderAI-assisted job matching from a CV
- AtelierAn editorial digital wardrobe with AI styling
- IslandsIslands-architecture front end with canvas physics and live telemetry
Now look at it the way an attacker would.
CVSS v4.0 certified
Make it hold.
NoteVault started deliberately vulnerable. A threat model, Semgrep and OWASP ZAP found eight issues, from a critical IDOR to CSP wildcards. Seven fixed, one shown not to be exploitable, then scanned again.
Diwan's database denies everything unless a rule allows it, and 21 test files keep it that way.
Ahmed Haidar
Software engineering at Atılım University, a summer building at SS4IT in Riyadh, and now HaideraLabs, a studio for software that holds.
Hire someone who already tried to break it.
Open to engineering roles and select freelance. Ankara or remote.
Get in touchahm3dbusinesss@gmail.comGitHub
© 2026 Ahmed Haidar · Founder of HaideraLabs