Михайло

Mykhailo Habor
+3809550544452 • [відкрити контакти](див. вище в блоці «контактна інформація»)
[відкрити контакти](див. вище в блоці «контактна інформація») github.com/MadeR228

Flutter developer and Computer Science graduate (B.Sc.; M.Sc. in progress) who builds and maintains mobile apps
from idea to store release. Built and runs three production Flutter/Dart apps, including ACTI on Google Play and
ABTManager, maintained and extended since Aug 2025 on a layered, service-based architecture with real-time sync
via Server-Sent Events. Features include REST API integration with own Node.js/TypeScript backends, offline mode,
notifications and localization. Comfortable with both sides of client-server architecture, OOP and design patterns,
Git, and widget tests across screen sizes and themes.

Core Competencies
Flutter (SDK) & Dart: Flutter for Android, iOS and Web, Material 3, responsive layouts, secure storage, maps
(flutter_map, OpenStreetMap), localization (up to 4 languages), light/dark themes.
Architecture & State: Layered, service-based architecture; singleton managers and stream-based updates
(Observer), flutter_bloc for app-wide theme state; OOP and design patterns (Singleton, Observer, Factory), DTO
serialization.
REST API & Client-Server: Own typed REST APIs on Node.js/TypeScript and PostgreSQL, WebSockets,
role-based access and server sessions; Firebase Authentication, OpenAI API, RevenueCat.
Mobile Features: Offline mode with automatic recovery and account sync, local notifications and background
reminders (Workmanager), in-app subscriptions.
Quality & Git: 30+ widget test files (320-390 px screens, both themes, 150% text size), 20+ API test suites,
Git/GitHub, Agile process from the EVA internship.
Release & UI/UX: Google Play release, GitHub Actions iOS builds, Docker deployments; mobile UI/UX design
in Figma; AI-assisted development with Claude Code.

Projects
ABTManager – Collaborative Task Manager taskmanger.digital
Flutter, flutter_bloc, SSE, Node.js, Express, TypeScript, PostgreSQL, Docker Aug 2025-Present
- Designed a layered, service-based architecture: singleton managers and services with stream-based updates
(Observer), flutter_bloc for the app theme, DTO serialization; real-time updates via Server-Sent Events with
reconnect handling.
- Built a productivity app combining tasks, to-dos, calendar events and reminders (recurring tasks, custom notification
times, statistics) with collaboration: friends, shared tasks, editor roles and per-person to-do assignment.
- Implemented offline access to personal plans, background reminders (Workmanager), light/dark themes, three
languages and Google AdMob monetization.
- Built the typed Express REST API for profiles, friends, shared tasks and account sync on PostgreSQL; deployed it
in Docker behind Caddy, first on AWS EC2 and now on Oracle Cloud; set up GitHub Actions for iOS builds.
ACTI – AI-Powered Activity Discovery App Google Play, actii.space
Flutter, OpenAI API, Firebase Auth, RevenueCat, PostgreSQL, Oracle Cloud Aug 2026-Present
- Designed, built and published to Google Play an app that uses generative AI (OpenAI Responses API, called from
my backend) to suggest one personal activity a day based on the user’s interests, attitude to walks and city.
- Implemented the full flow (onboarding, generation, step-by-step instructions, accept/complete tracking, photo of
the completed activity) with account sync across devices.
- Built offline mode with automatic recovery, notifications when new activities are available and localization in
English, Ukrainian and Russian.
- Integrated email and Google sign-in (Firebase Auth) and a Premium tier (5x daily activities, stronger AI model)
via RevenueCat in-app subscriptions; built the landing site actii.space.

BC – Workforce & Transport Operations Platform
Flutter, Node.js, TypeScript, PostgreSQL 16, WebSockets, Docker, AWS Sep 2026-Present
- Built an end-to-end system for workers, bus drivers and administrators of a staffing operation in Czechia: one
Flutter client for Web, Android and iOS on a single TypeScript REST API.
- Covered the API with 20+ test suites and the client with 30+ widget test files (320-390 px screens, both themes,
150% text size); kept production data safe with 100+ versioned SQL migrations including rollback and verification
scripts.
- Added role-based access with server-side sessions, targeted announcements with duplicate-safe delivery, requests
and approvals, XLSX import/export and PDF/XLSX reports; UI in Czech, English, Russian and Ukrainian.
Durak – Online Multiplayer Card Game GitHub
C#, .NET, WinForms, Lidgren.Network
- Developed a networked multiplayer card game with a dedicated server, lobby and synchronized game state, driven
by an extensible rule engine behind interfaces (OOP coursework).

Professional Experience
EVA (LLC RUSH) Poltava, Ukraine
Software Engineer Intern Apr 2026-Jun 2026
- University internship (pre-graduation practice): worked alongside experienced developers on a production codebase
within the team’s Agile process.
- Helped analyze requirements, test functionality and review technical documentation.

Education
National University “Yuri Kondratyuk Poltava Polytechnic” Ukraine (distance learning)
M.Sc., Computer Science Sep 2026-Dec 2027
In progress, expected December 2027.
National University “Yuri Kondratyuk Poltava Polytechnic” Ukraine
B.Sc., Computer Science Sep 2022-Jun 2026
GPA 86.47/100 (3.46/4.0). Core courses: Data Structures, Algorithms, OOP, Computer Architecture, Operating
Systems, Computer Networking, Probability & Statistics.

Languages
Ukrainian (native), English (proficient).