Hleb

Hleb Zabalskyi
Flutter Developer
[open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | LinkedIn | GitHub

SUMMARY
Flutter developer with hands-on ownership of mobile products: architecture, implementation, store release and
post-launch support. Delivered 10+ cross-platform apps (health, travel, real estate, fintech, lifestyle, productivity),
most of them as the primary developer. Experienced with AI/ML and computer vision on device, payments and
subscriptions, native home screen widgets and Bloc/rxdart-based architecture. Hardworking, sociable and
stress-resistant; looking for a product company to keep growing as a developer.

EXPERIENCE
Flutter Developer | GRND
11/2024 - Present | Remote
• Built cross-platform apps from zero to App Store / Google Play release, with ongoing support after launch.
• Extended existing apps with new features, refactored architecture and fully rebuilt legacy apps, improving
readability, extensibility and stability.
• Worked mostly as the primary developer on projects, and collaborated with other developers on larger ones.
• Integrated Firebase (Auth, Firestore, Storage, Cloud Messaging, Remote Config, Hosting, Analytics), AppsFlyer,
Facebook Analytics, RevenueCat, Stripe, LiqPay, LINE Auth and Google Maps.

Education and professional development
12/2023 - 11/2024
• Completed a Bachelor's degree in Software Engineering (06/2024) and continued developing professional skills.

Flutter Developer | eDnipro
08/2022 - 12/2023 | Dnipro, Ukraine
• Developed new mobile apps and supported existing ones, including publishing to the stores.
• Developed new back-end apps (Node.js + Express).
• Mentored students and conducted interviews for new employees.

ACCOMPLISHMENTS
• Delivered 10+ cross-platform mobile apps from zero to store release and supported them after launch.
• Built complex features end to end: AI/ML and computer vision, payments and subscriptions, native widgets,
virtual keys.
• Rebuilt and refactored existing products, improving code quality, scalability and stability.
• Took ownership of products from architecture to release while working effectively in a team.

PROJECTS
Cam Scanner App | Released
Document scanner with its own file system, document conversion, PDF and DOC editing, real-time document
border tracking, auto-crop and image filters. Document detection runs locally on the device. Includes subscription
monetization.
Stack: Flutter, Bloc + rxdart, dartcv4, RevenueCat
Links: App Store
RStays | Released
Hotel room booking app with a TikTok-style short-video feed for hotel reviews and Stripe-powered booking. Also
adapted into a Flutter web version.
Stack: Flutter (mobile + web), Bloc + rxdart, Stripe
Links: App Store | Google Play | Web

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Sollo | Released
Apartment rental app with virtual keys to the apartments and the ability to share them, plus parking rental
functionality.
Stack: Flutter, Bloc + rxdart
Links: App Store | Google Play
Genadhecar | Released
App for a Spanish healthcare organization that assesses respondents' health level.
Stack: Flutter, GetX, Firebase Auth
Links: App Store | Google Play
Montazh+ | Released
App for a repair company with order intake and processing and virtual payments via LiqPay.
Stack: Flutter, Bloc + rxdart, LiqPay
Fithaus (personal freelance order) | Released
Gym app for booking personal and group sessions, tracking the visit schedule and paying for sessions via LiqPay.
Stack: Flutter, GetX, Firebase Cloud Messaging, LiqPay
Links: App Store
Totalis | In development
Health consultation app with an AI assistant and continuous monitoring of the user's health status across different
areas.
Stack: Flutter, Bloc + rxdart, Firebase Analytics
Daxil Business | In development
Banking app for business users.
Stack: Flutter, Bloc + rxdart, Firebase Auth
Flowly | In development (other team)
Digital detox app that tracks the time a user spends in selected apps, blocks access to them, collects usage
statistics and motivates the user to reduce screen time.
Stack: Flutter, Bloc + rxdart, platform channels
Come to me | In development
Tinder-style dating app with swipe-based matching, identity verification, map features and multiple sign-in options.
Stack: Flutter, Bloc + rxdart, Firebase Auth, LINE Auth, Didit SDK, Google ML Kit, Google Maps
Kokorooz | Removed from stores
Dating app; extended with new features.
Stack: Flutter, GetX
Links: Website
Fitness | Paused
AI-powered workout app that checks whether exercises are performed correctly and gives advice on maintaining
and improving physical shape.
Stack: Flutter, Bloc + rxdart, Google ML Kit, TFLite
Face Kit | Unreleased
AI assistant for photography that helps the user frame a shot and gives live composition tips.
Stack: Flutter, Bloc + rxdart, Google ML Kit, TFLite
Horoscope | Unreleased
Daily horoscope app with a home screen widget on iOS and Android, customizable by the user.
Stack: Flutter, Bloc + rxdart, widget extensions, platform channels

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MyBook (eDnipro) | Released
Mobile app giving students access to the school library by class and school, with an extensive catalog of school
and extracurricular literature approved by the Ministry of Education. Built the entire UI and its
optimization/redesign, REST API integration, a native audio player, app/uni links (including server side), a PDF
reader (PDFtron) and store publication.
Stack: Flutter, REST API, PDFtron, native audio player
Links: Google Play
Employment center (eDnipro) | Unreleased
Online platform for employee and vacancy search with chats and an admin interface. Built the entire UI, the server
side (Node.js + Express), REST API integration, PDF reader and server-side PDF generation, app/uni links, push
notifications and websocket chats.
Stack: Flutter, Node.js, Express, Socket.io, OneSignal, Firebase Cloud Messaging

SKILLS
Core: Flutter, Dart, platform channels, iOS/Android widget extensions, Rive
State and architecture: Bloc (rxdart), GetX, Provider, GetIt, Clean Architecture
Firebase: Auth, Firestore, Storage, Cloud Messaging, Remote Config, Hosting, Analytics
ML and CV: Google ML Kit, TensorFlow Lite, dartcv4
Payments: Stripe, RevenueCat, LiqPay
Networking and realtime: REST API, Socket.io, OneSignal, app/uni links
Analytics and integrations: AppsFlyer, Facebook Analytics, LINE Auth, Google Maps, PDFtron
Back end: Node.js, Express
Tools: Git, Jira, Trello, Notion

EDUCATION
Bachelor, Software Engineering | Dnipro State Technical University | 09/2021 - 06/2024
Junior Specialist, Computer Science | Kamiansky Energy Vocational College | 09/2017 - 05/2021

LANGUAGES
English: Intermediate | Ukrainian: Native

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