Вадим

VADYM DOLYNSKYI
MOBILE APP DEVELOPER
Bucharest, Romania • [відкрити контакти](див. вище в блоці «контактна інформація») • [відкрити контакти](див. вище в блоці «контактна інформація»)
GitHub • LinkedIn • Telegram

SUMMARY
Cross-platform Mobile App Developer with a product-driven mindset, building, scaling, and
delivering apps across mobile and web. I take end-to-end ownership—from UI/UX prototyping and
API design to store releases and live telemetry. I operate at an engineering level where unfamiliar
tech is not a barrier. Built on a solid foundation in software architecture, I adapt to new tools and
AI-driven workflows with the mindset: "I haven't used this yet, but I'll figure it out and integrate it
seamlessly."

SKILLS & CORE COMPETENCIES
Languages & Core: Dart & Flutter (Primary), Swift (Secondary / Native iOS Integrations), Kotlin &
JavaScript (Platform Bridging).
Architecture, State & Navigation: Clean Architecture & Modularization, SOLID & DRY principles,
BLoC & Cubit (BaseBloc, HydratedBloc), Riverpod, Native State Management (ChangeNotifier,
ValueNotifier), Routing (GoRouter, AutoRoute, Navigator), Dependency Injection (GetIt,
Injectable), Code Generation & Quality (Freezed, JsonSerializable, BuildRunner, Flutter Test).
Networking, Real-time & Cloud: REST APIs (Dio, HTTP, custom interceptors), WebSockets,
Firebase Ecosystem (FCM, Authentication, Firestore, Cloud Functions).
Persistence, Storage & App Security: Data Isolation & Code Obfuscation, Flutter Secure
Storage, User-Bound Local File Encryption, Secure Cookie-based Sessions (Web), Offline
Caching & DBs (ObjectBox, Hive, SharedPreferences, etc.).
UI, Graphics & Media: Complex Custom Widgets & Canvas (CustomPainter), Gesture Handling,
Interactive State Machines (Rive, Lottie, AnimationControllers), Glassmorphism, Real-time Audio
Processing & Voice Transcription, UI/UX Prototyping, etc.
Hardware, System & Web: Platform Channels (MethodChannel, EventChannel), Deep Links &
App Links (Universal Links, custom schemes), Media & Hardware APIs (Camera, Document
Scanners, LiDAR, Live Activities, granular OS permissions), UI Rendering Optimizations & FPS
Profiling (Flutter DevTools), Flutter Web standalone builds & JS Web Workers.
DevOps, Monetization & Analytics: CI/CD (GitHub Actions), App Store Connect & TestFlight,
Google Play Console, In-App Subscriptions & Payments (RevenueCat, WayForPay), Telemetry &
Crash Reporting (Sentry), User Tracking (Amplitude, Google Analytics), Localization & i18n.

PRODUCT STRATEGY & AI-DRIVEN ENGINEERING
Agentic Workflows & Autonomous Engineering: Orchestrated multi-agent hierarchies and
custom skills (Claude Code, Antigravity) alongside AI-assisted IDEs (Cursor, Copilot) for rapid
feature scaffolding, autonomous task execution, and quick cross-stack adaptation (JS, HTML).
AI Prototyping & Contract-First Specs: Translated client concepts into interactive UX
blueprints and functional flows using generative AI design tools (Stitch, Claude Design),
authoring strict JSON API contracts to eliminate frontend-backend integration bottlenecks.
Context Management & Technical Documentation: Structured local knowledge bases via an
Umbrella folder architecture and Obsidian context graphs to author, organize, and continuously
update living project documentation, feeding precise architectural constraints into AI agent
workflows.

EXPERIENCE & PROJECTS
Mobile App Developer | Proggenius Jul 2025 – Sep 2026
Architected and delivered end-to-end production cross-platform applications, driving core system
architecture, native integrations, security compliance, and store releases.
E-Commerce Platform: Sole mobile engineer architecting the client app for a full-scale e-
commerce platform. Engineered a modular Clean Architecture that passed a strict independent
code and security audit. Implemented an Apple-inspired UI with custom Glassmorphism effects,
fortified with code obfuscation, custom network interceptors, and RevenueCat subscription
management.
Legal AI Assistant & Document App: Engineered an AI-agent powered application featuring
real-time WebSocket communication, heavy local file management, and automated voice
transcription. Built a high-performance native PDF editor and integrated a multi-party signing
flow with the Diia API for legally binding digital signatures.
Large-Scale Legacy Refactoring: Overhauled an outdated, monolithic mobile codebase into a
clean, testable modular architecture. Conducted deep UI rendering optimization and eliminated
layout bottlenecks for consistently high FPS. Engineered a user-bound local encryption system
for offline caching and sensitive document storage.
Flutter Web Expansions: Architected standalone web builds using an Umbrella modular
structure for 1:1 backend API parity. Engineered web-specific solutions: cookie-based session
interceptors, WayForPay payment gateway integration, and background audio decoding via JS
Web Workers.
Mobile App Developer | Stealth Startup Apr 2024 – Jun 2025
Engineered and launched client-facing Flutter mobile applications under rapid turnaround cycles,
focusing on interactive UI and ad-driven user acquisition. Built and deployed lightweight utility
apps, news aggregators, and mini-games designed for targeted marketing campaigns.
Administrator of Bots & CRM | GoIT May 2023 – Mar 2024
Created and configured Telegram bots, integrating platforms such as Leeloo, YouTube,
ClickMeeting, UniTalk, TurboSMS, Cuttly, Zoho, and Notion. Formed, segmented, and analyzed
customer databases using Excel and Google Sheets.
Administrator of Bots & CRM | BrandU Sep 2021 – Mar 2022
Created and configured Telegram bots utilizing tools including Leeloo, YouTube, Bizon365, Google
Sheets, and Zoom. Established business integrations via the Onlizer platform using C#, and
managed data analytics and automation.

EDUCATION
Kharkiv National University of Radio Electronics Sep 2019 – Jul 2023
Bachelor's Degree in Cybersecurity

LANGUAGES
English: Upper-Intermediate (B2)
Ukrainian: Native
Russian: Native

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