Назарій

Nazarii Martsinko Flutter Developer
[open contact info](look above in the "contact info" section) [open contact info](look above in the "contact info" section) Stebnyk, Lviv region

Nazarii Martsinko Ukrainian 20.07.2005 martsinko

EDUCATION Flutter Developer with 2 years of experience developing cross-platform mobile
applications using Flutter and Dart. Strong background in building scalable
Drohobytskiy State Pedagogical architectures with Clean Architecture and implementing state management with
University, Drohobych, Bachelor Bloc/Cubit or Provider.
09/2024 – 07/2027 | Drohobych Experienced in REST API integration using Dio, Firebase services, and secure
I am studying in specialty 122 - authentication with JWT. Focused on performance optimization, responsive UI
Computer Science. development, and delivering high-quality mobile experiences. Continuously
improving skills and exploring modern mobile development technologies.
Drohobytskiy Mechanical and
Technological Vocational College,
Drohobych,
EXPERIENCE
Professional Junior Bachelor Neteject AB, Flutter Developer
09/2020 – 07/2024 | Drohobych
10/2025 – 12/2025 | Remote
Studied in specialty 121 - Software Social Networking Mobile Application
Engineering. Completed my thesis on Contributed to the development of a cross-platform mobile social networking
Flutter. The topic of my thesis is application focused on interactive user engagement and dynamic content delivery.
smart identifier. Took an active social The project included complex UI animations, scalable architecture, and seamless
part in the life of the college, in integration with cloud services to support real-time and asynchronous data
particular in sports life (football, interactions.
volleyball, basketball, badminton) Responsibilities & Technologies:
Developed core application features using Flutter and Dart following Clean
•

SKILLS Architecture and feature-based structure
Implemented state management with Bloc and Cubit to ensure predictable and
•

Flutter scalable application state
Integrated Supabase backend services and RESTful APIs for authentication,
•

Dart data management, and real-time communication
Designed and implemented complex UI animations and interactive components
•

Clean Architecture to improve user engagement and user experience
Built responsive and adaptive UI layouts ensuring consistent behavior across
State Management
•

multiple screen sizes and devices
Bloc /​Cubit /​Provider
•

Implemented local data persistence and caching mechanisms to improve
Freezed /​DI
•

•

performance and reduce network dependency
Collaborated on improving application performance, code maintainability, and
Backend / Cloud
•

modular architecture
Firebase
•

Supabase
•
Eclipt Al, Junior Flutter Developer
03/2025 – 10/2025 | Remote
Responsive/Adaptive 1) Wealth & Lifestyle Tracking App (My Savings Coach) Participated in the
Design/Animations development of a cross-platform mobile app for tracking personal finances,
lifestyle, and purchases.
Tools
Key Contributions & Technologies:
GitHub /​Git
•

Developed core app features using Bloc and Clean Architecture for maintainable
Figma /​Postman
•

and scalable code
•

Integrated REST APIs via Dio with JWT authentication
Networking
•

Implemented WebSocket for real-time data updates
REST API : Dio /​HTTP
•

Managed state with Freezed and handled navigation via GoRouter
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WebSocket
•

Designed interactive data charts using Fl Chart and implemented onboarding
•

JWT Authentication
•

flows with Showcase
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Integrated Plaid SDK for secure financial data connections
Navigation
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AutoRouter
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GoRouter
•
 LANGUAGES 2) SWITCH5 SPORT (Sports Coaching App)
Contributed to the development of a published mobile app available on App Store
Ukrainian: Native (link - https://apps.apple.com/ua/app/switch5-teamgenerator/id6695745953?l=uk⁠
English: Intermediate ) and Google Play, designed for coaches to manage rosters, track scores, and
run in-game timers.
Key Contributions & Technologies:
HOBBIES •Built features using Bloc, Dio, and JWT authentication, following Clean
Architecture principles
Football — I played professionally. I Managed local data storage with SharedPreferences
won a lot of awards for the best player
•

Implemented state management with Freezed and navigation with GoRouter
and the best scorer. I also attended
•

Enhanced UI/UX to improve usability and performance, ensuring smooth
the famous academy in Ukraine -
•

interactions for coaches
"Skala Morshyn"
Volleyball Private brand, Junior Flutter Developer
09/2024 – 02/2025 | Remote
Walking
Astrology Mobile Application Contributed to the development of a cross-platform
Computer Games mobile application delivering personalized astrology content and interactive user
Films or TV-series experiences. The application focused on scalable architecture, real-time data
updates, and seamless API integration.
Responsibilities & Technologies:
Implemented core application features using Flutter and Dart following Clean
•

Architecture principles
Managed application state using Bloc to ensure predictable and scalable state
•

management
Integrated RESTful APIs using Dio with JWT-based authentication
•

Implemented WebSocket connections to support real-time data updates and live
•

user interactions
Collaborated on designing scalable and maintainable application architecture
•

Optimized data handling and ensured smooth performance across the
•

application

PET PROJECTS
Store App, https://github.com/martsinko/stope_app.git
A mobile shopping app focused on performance and scalability.
Key Technical Achievements:
• Architecture: Clean Architecture (Data, Domain, Presentation layers).
• State Management: BLoC for complex business logic.
• Networking: REST API integration via Dio with custom interceptors.
• Persistence: Local caching system using Shared Preferences.
• UI/UX: Responsive, pixel-perfect design with reusable components and smooth
animations.
Features: Dynamic catalog, filtering, wishlist, and optimized image loading.

Crypto Tracker App, https://github.com/martsinko/crypto_app.git
An app for tracking cryptocurrency prices and market trends in real time.
Key Technical Achievements:
• Architecture: Clean Architecture for maintainability and scalability.
• State Management: BLoC for efficient real-time data handling.
• Data Visualization: Interactive price charts and historical data analysis.
• API Integration: Robust REST API implementation with custom data models.
• Custom UI/UX: Developed a modern, dark-themed interface with reusable
widgets for iOS & Android.