I am a Mobile App Developer focused on native Android and iOS development as well as cross-platform apps with Flutter. I build modern, user-centered applications with clear architecture, reusable components, API integrations, local persistence and reliable state management.

My main development areas are:

• Android: Kotlin, Jetpack Compose, MVVM/MVI, Coroutines, StateFlow, Room, Retrofit and Koin
• iOS: Swift, SwiftUI, MVVM, URLSession, Combine, SwiftData and Firebase
• Flutter: Dart, Riverpod, Provider, Dio, Firebase and feature-first project structures
• Engineering: Clean Architecture, Repository Pattern, REST APIs, testing, Git/GitHub workflows and CI/CD fundamentals
• Design: Responsive UI, Material Design, Apple Human Interface Guidelines and Figma

I am currently expanding my portfolio through practical mobile products and production-oriented development workflows. I am open to Junior Mobile App Developer roles, project collaborations and practical test projects.

A native Android app for discovering, filtering and managing video games with data from the RAWG API.

• Search and filter a large game catalog
• Favorites and wishlist management
• Offline cache with Room
• JSON export and import
• Dark and light mode
• MVVM/MVI hybrid architecture

Tech: Kotlin · Jetpack Compose · Room · Retrofit · Moshi · Koin · Coroutines · Firebase

Repository · Pitch Deck

A native iOS app for tracking cryptocurrency prices, market data, charts and favorite coins.

• Live cryptocurrency market data
• Interactive price charts
• Favorites and user authentication
• Firestore-backed user data
• SwiftData persistence and offline fallback
• MVVM-based project structure

Tech: Swift · SwiftUI · MVVM · URLSession · Combine · SwiftData · Firebase

Repository · Pitch Deck

A Flutter companion app for players of ARK: Survival Ascended. It provides official server information and helps users find and save relevant servers.

• Official server overview
• Search and filtering
• Server details
• Favorites
• Localization
• Firebase integration
• Feature-first Flutter architecture

Tech: Flutter · Dart · Riverpod · Dio · Firebase · REST API

Repository · Pitch Deck

My Flutter Web portfolio and developer website presenting my services, projects and technical background.

Tech: Flutter Web · Dart · Responsive Design · GitHub Pages

Website · Repository

• Mobile App Developer – iOS & Android, Syntax Institut
  Successfully completed in July 2025 with 2,300 teaching units. The qualification covered Swift, SwiftUI, Kotlin, Jetpack Compose, networking, persistence, Firebase, MVVM and repository-based architectures.

• App Developer – Flutter, App Akademie
  Successfully completed in September 2024 with 1,750 teaching units. The qualification covered UX/UI design, Dart, Flutter, Firebase, GitHub, state management, responsive interfaces, publishing and portfolio development.

• iOS module final project – CryptoTracker, Syntax Institut
  Official overall evaluation: Good (German grade 2; approximately US grade B).
  Technical understanding was rated Very Good (grade 1 / approximately A); functionality, code quality and usability were rated Good (grade 2 / approximately B).

• Android module final project – GameRadar, Syntax Institut
  Official overall evaluation: Good (German grade 2; approximately US grade B).
  Technical understanding, functionality and usability were rated Very Good (grade 1 / approximately A); code quality and presentation were rated Good (grade 2 / approximately B).

• German — Native
• English — B2

• Portfolio: Jchillah's Design & Coding Forge
• CV Web App: My personal CV app
• GitHub: @jchillah
• Email: [email protected]