Ümit YasinÇoban
Full-Stack & Mobile Developer building production mobile apps, Java/Spring Boot services, AI automation workflows systems, and cloud-ready web platforms.
Technologies I
work with
Skill Proficiency
Professional
journey
Software Developer
Confidential Employer 1
Contributed to software development and maintenance in collaboration with technical and business teams.
Software Developer
Confidential Employer 2
Contributed to software development and maintenance in collaboration with technical and business teams.
Engineering solutions
that scale

4+
Years Experience
Java 8-25
Backend Range
10K+
Mobile Downloads
I'm a Full-Stack & Mobile Developer focused on turning product requirements into maintainable web, mobile, and backend applications. My strongest day-to-day stack is Java, Spring Boot, React Native, React, TypeScript, and PostgreSQL.
My professional approach emphasizes maintainable code, careful testing, clear documentation, and teamwork.
I've shipped personal mobile products such as Competitive Sudoku, which reached 10K+ downloads, and continue to develop independent mobile and web products.
Core principles
AI, mobile, and backend
systems in production
Competitive Sudoku
Cross-platform mobile Sudoku product published on App Store and Google Play with 10K+ downloads, five difficulty levels, leaderboards, smart hints, multilingual support, Firebase, and AdMob.
Neon Orbit / Space Drill
Unity-based mobile arcade game with supporting backend and product web pages, combining C# gameplay development with Spring Boot API work and mobile release workflows.
Let's build something
amazing together
Have a project in mind? I'd love to hear about it. Let's discuss how we can work together.
Based in
Turkey 🇹🇷
Available for remote work worldwide