Hello, I'm Yusufhan
As a skilled Software Engineer with a background in cybersecurity, I transform ideas into innovative web and mobile applications. Specializing in Flutter development, I build seamless digital experiences that solve real-world problems.

25+
Projects
~100
Users
1+
Awards
3+
Years

About Me
Yusufhan Sacak, a Software Engineer with expertise in Flutter development, brings a unique blend of technical skill and creative vision to web and mobile applications. With a solid foundation in cybersecurity from Istanbul Bilgi University and computer engineering from Bahçeşehir University, I approach every project with both security and user experience in mind.
As a natural leader who headed the Bi'Siber Cyber Security Club, I'm known for my collaborative approach and ability to communicate complex technical concepts clearly. My passion for elegant UI/UX design informs every application I build, ensuring they're not just functional but delightful to use.
Technical Skills
- Flutter & Dart
- JavaScript & TypeScript
- React & Next.js
- C++, Java, Python
- Node.js & Express
- PHP & MySQL
- Swift
Soft Skills
- Project Management
- Public Relations
- Leadership
- Effective Communication
- Problem Solving
- UI/UX Design
- Team Collaboration
My Projects
Explore my portfolio of web and mobile applications that showcase my technical skills and creative approach to problem-solving.
Audi Mobile App
Developed at Doğuş Teknoloji, this Flutter-based mobile application offers Audi owners comprehensive vehicle management, service booking, and exclusive content. Features include digital service history, dealer locator, and personalized vehicle information.

Seat Mobile App
Created during my time at Doğuş Teknoloji, this Flutter application provides Seat vehicle owners with a seamless mobile experience. Features include maintenance scheduling, vehicle status monitoring, and direct communication channels with authorized service centers.

Cupra Mobile App
Developed for Doğuş Teknoloji, this premium Flutter application serves Cupra vehicle owners with an elegant interface and advanced features. The app offers performance tracking, personalized vehicle insights, service reminders, and exclusive Cupra content.
Let's Connect
Have a project in mind or want to discuss potential opportunities? I'm always open to new ideas and collaborations.
Contact Details
Location
Istanbul, Turkey