11/03/2025 updated
100 % available
Mobile Application Developer
Aydın, Turkey
Worldwide
Computer EngineeringAbout me
Hi! I’m Baransel, a Mobile Developer with 3+ years of experience in Flutter and Kotlin. I build scalable, high-performance apps with real-time sync, payments, and device connectivity from UI to deployment helping businesses grow through impactful mobile solutions.
FlutterHTMLJava (Programming Language)JavaScriptPHPUser Experience (UX)Application Programming Interfaces (APIs)Android Software DevelopmentAndroid StudioApplication Lifecycle ManagementArchitectureAtlassian JiraAutomationCascading Style Sheets (CSS)Mobile Application Development
Mobile App Development
Cross-platform mobile application development using Flutter and native Kotlin, following MVVM architecture and modular design patterns. Experienced in building responsive, scalable, and maintainable mobile systems with real-time features and optimized performance.
Backend Integration
Deep experience integrating RESTful APIs, JSON/SOAP services, and implementing real-time synchronization using Firebase (Auth, Firestore, Push Notifications). Proficient in debugging and testing API endpoints via Postman.
Programming Languages
Strong background in Kotlin and Java for Android development, leveraging Android Studio, Jetpack libraries, and modern tooling such as Gradle automation and dependency injection frameworks.
UI/UX Development
Development of responsive, high-performance, and modern interfaces using Jetpack Compose and Flutter Widgets. Skilled in crafting fluid, accessible user experiences aligned with material design principles.
State & Database Management
Experience with Riverpod for scalable state management, Room for local persistence, and structured data flow between repositories, ViewModels, and UI layers.
Version Control & Collaboration
Proficient in Git and GitHub workflows, issue tracking through Jira, and code collaboration in asynchronous, international team environments.
Web Development
Skilled in WordPress (MU-based architecture), PHP, JavaScript, HTML, and SCSS for building and customizing responsive websites and theme integrations.
Payment Systems & Device Features
Integration of iyzico payment systems, Google Sign-In, and device pairing functionalities. Experienced in ensuring security and smooth UX during payment and connectivity processes.
Experience
Professional experience0 - 5 years
Freelancer since2025
Languages
EnglishFluentItalianBasic knowledgeTurkishNative speaker
Project history
Independently developed cross-platform mobile application using Flutter with MVVM and Riverpod architecture. Integrated RESTful APIs and Firebase services for real-time data synchronization and push notifications.
Developed e-transformation app Bien Mobil using Java, Kotlin, and design patterns. Worked with RESTful JSON and SOAP services, automating builds with Gradle and managing source control with Git.
Contributed to telecommunication-software projects using SOLID principles with MVVM architecture and Kotlin Jetpack Compose for embedded systems development.