🚀 Open to Work

Hi, I'm Roman Tsisyk

Senior Android Developer & UI/UX Enthusiast

Crafting exceptional Android experiences with 12+ years in development. Specialized in Kotlin, Jetpack Compose, and modern architecture patterns. Built apps serving 500K+ users.

View Projects GitHub
10+ Projects
12+ Years Exp
15+ Technologies
MainActivity.kt 
class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            MyAwesomeApp {
                // Building amazing Android apps
                // with modern tools and best practices
            }
        }
    }
}
PORTFOLIO

Featured Projects

A showcase of my best Android applications and UI/UX work

Netti App
View Details →

Netti

Featured

Professional network testing suite with speed test, iPerf3, ping, and trace route tools

Kotlin Jetpack Compose Material 3
Live Demo GitHub
Earnly App
View Details →

Earnly

New

Smart tax management app for UK businesses with HMRC integration and real-time calculations

Kotlin Firebase Room DB
Live Demo GitHub
EXPERTISE

Skills & Technologies

My technical stack and proficiency levels

📱 Android Development

Kotlin Expert
Jetpack Compose Advanced
Android SDK Expert
Material Design Advanced

🏗️ Architecture & Patterns

MVVM Expert
Clean Architecture Advanced
Dependency Injection Advanced
Coroutines & Flow Advanced

🗄️ Backend & Database

Firebase Advanced
Room Database Expert
REST APIs Advanced
SQLite Advanced

🛠️ Tools & Others

Git Android Studio Gradle CI/CD Unit Testing UI Testing Figma Postman Jira Agile/Scrum
ABOUT ME

Passionate Senior Android Developer

I'm a Senior Android Developer with a passion for creating beautiful, functional, and user-friendly mobile applications. With over 12 years of experience in software development, I specialize in building robust applications using Kotlin and modern Android architecture patterns.

My journey in mobile development started with a curiosity about how apps work and evolved into a career focused on crafting exceptional user experiences. I'm particularly interested in fintech applications, UI/UX design, and performance optimization.

🎓

Education

Computer Science Degree

💼

Experience

12+ Years in Development, 6+ in Android

🏆

Achievements

10+ Apps Published

Profile
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Let's Work Together

Have a project in mind? Let's discuss how we can collaborate

📧
📍

Location

Wroclaw, Poland