Mobile
APPLICATION
DEVELOPER
I build high-performance mobile applications for iOS and Android. 5+ years of experience, 35+ completed projects.
My work speaks through numbers
FROM IDEA
TO APP STORE
Yourvision,myexpertise
I'm Semih ÖZ, a Flutter developer from Turkey with 5+ years of experience crafting high-performance mobile apps for iOS and Android. I've shipped 25+ apps to production, reaching users in 130+ countries.
Clean Code Principles
Maintainable architecture, SOLID principles, testable from day one for every project.
User-Focused Design
Every decision starts with the user. UX is not an afterthought — it drives every feature and interaction.
Agile Development Process✓
MVP to production without sacrificing quality. Agile mindset with rapid iteration and deployment.
Portfolio
SELECTED
PROJECTS
Temizlik Delisi
TemizlikDelisi is a mobile marketplace that connects customers with verified cleaning professionals. Users can easily book home, office, window cleaning, or cooking services, while cleaners can manage their schedules, accept jobs, and earn flexibly. The application is designed as a single app with two account types, allowing both customers and cleaners to operate within the same platform with role-based flows, permissions, and user experiences. Role: Flutter Developer (End-to-End Development) Developed the mobile application from scratch to production using Flutter Implemented dual-account architecture for customer & cleaner in a single app Built booking, calendar management, and in-app messaging flows Implemented membership, loyalty, and referral systems Managed Play Store and App Store deployment and release processes
Salon Management & Booking
Salon Management & Booking” is a comprehensive solution tailored for businesses that operate on an appointment basis, including hair salons, beauty salons, barbershops, aesthetic centers, spas, solarium centers, makeup studios, nail studios, eyebrow & eyelash centers, clinics, veterinary clinics, dietitians, tattoo & piercing salons, and more. The app is designed to streamline appointment scheduling, enhance customer satisfaction, and improve overall business management. The app offers a variety of features that make it easy for businesses to manage their appointments efficiently. These features include real-time appointment tracking, customer management, automated reminders, and advanced reporting tools. By leveraging these capabilities, businesses can reduce no-shows, optimize their schedules, and provide a better service experience for their clients. Role: Flutter Developer Salon Randevu is a mobile application that allows beauty salons to manage appointments, payments, bonuses, and many other features. • Developed and implemented Getx Package for State Management, Dependency Management, Route Management and Localization • Developed custom advanced filter view and searchable dropdown • Merged 3 different mobile app(Salon Management, EnRandevu,Salon Randevu) into one flutter project like super app • implemented a barcode feature using QR codes. • We’ve integrated Fastlane(CI/CD Tool) into all our projects. To centrally manage Fastlane configurations across multiple projects, we’ve created a specialized tool within a Flutter project.
Cryptobot | Trading Signals
Are you a day trader trading in crypto futures exchanges? Tired of losing money due to high volatility in crypto markets? Then this app is exactly for your needs! Start multiplying your earnings with short-term AI-generated trading signals, not just in a bull market but also in a bear market too! Cryptobot offers users a basket of intraday trading strategies with high accuracy. Get at least 50 daily backtested signals on major global crypto futures exchanges, adjust your leverage level and start enjoying your earnings! Receive notifications when signals are opened and closed, and review all transactions in the reports section with full transparency. Cryptobot is proudly the only short-term signal provider on crypto futures exchanges in the app store. All the strategies that feed the platform are developed and backtested by our analysts and work on more than 40 trading pairs. You can trade your favorite coins like Dogecoin and Shiba Inu! Get started with Cryptobot for free for the first 100 trade signals. If you try and like it, you can continue to use the application by choosing one of the subscription plans that are suitable for you. Role: Flutter Developer I was a team member who developed Coin Signals Application • Developed a Stream data to track real-time cryptocurrency signals and prices with Firebase and Binance API • Developed Custom FL Chart Graphic to view historical coin data in graphical format
App Store
Google PlayHigh-performance cross-platform mobile apps with a single codebase. Native performance on both iOS and Android with beautiful, responsive UIs.
Flutter Development
Mobile UI/UX
Backend Integration
App Store Publishing
MY process
My four-step process keeps you informed and involved at every stage, ensuring the final result meets your goals and resonates with your audience.
↳Schedule a consultationDiscovery & Strategy
Requirements gathering, scope definition, and project roadmap creation. From a solid foundation to a fully optimized solution.
Design & Prototyping
Bringing your vision to life with wireframes and prototypes, focusing on an engaging user experience.
Development & Integration
Clean code implementation, unit tests, CI/CD pipeline setup. From a solid foundation to a fully optimized solution.
Launch & Support
After testing and final approvals, we launch the app and provide ongoing support and monitoring.
FAQ
Everything you need to know before working with me. Here are the most common questions.
↳Ask a questionGet in Touch
LET'S
TALK
Have a project in mind? Let's build something great together. I typically respond within 24 hours.
Or reach me directly: contact@ozsemih.com