Давид

Davyd Dudka
Senior Flutter Developer | Mobile Team Lead
Kyiv, Ukraine | [відкрити контакти](див. вище в блоці «контактна інформація») |
[відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація»)

SUMMARY
Senior Flutter Developer and Mobile Team Lead with 5+ years of experience building and scaling iOS and
Android applications with millions of users in Flutter and Dart for logistics, retail, and e-commerce
(Ukrposhta, Silpo, CityRyder). Currently leading a mobile team of 4 on Ukrposhta 2.0 with ~1.3M active
users while staying hands-on in code. Designs Clean Architecture from scratch, builds design systems,
and introduces engineering practices: code review, unit, widget, and integration testing, and CI/CD.
Experienced with real-time features (WebSocket, WebRTC), maps and geolocation, and native Kotlin and
Swift integrations via platform channels.

SKILLS
Languages & Platforms: Dart, Flutter, Kotlin, Swift, iOS, Android, Platform Channels, Cross-Platform
Development
Architecture & State Management: Clean Architecture, BLoC, Cubit, Riverpod, Provider, Design
Systems
DI, Code Generation & Navigation: get_it, injectable, freezed, json_serializable, go_router, auto_route
Networking & Real-Time: REST API, Dio, Retrofit, HTTP, WebSocket, Socket.IO, WebRTC
Local Storage: Hive, Isar, Drift, sqflite, shared_preferences
Firebase & Monitoring: Firebase Authentication, Cloud Firestore, Cloud Functions, Push Notifications
(FCM), Crashlytics, Sentry, Firebase Analytics, Google Analytics
Maps & Location: Google Maps SDK, Mapbox, OpenStreetMap, Background Geolocation, Real-Time
Tracking
Integrations & Media: In-App Purchases (IAP), Shopify API, Video Streaming, Camera Integration
Testing: Unit Testing, Widget Testing, Integration Testing, mocktail, mockito
CI/CD & Release: GitHub Actions, GitLab CI, Codemagic, Fastlane, Firebase App Distribution, App Store
Connect, Google Play Console, Release Management
Process & Tools: Agile, Scrum, Kanban, Jira, Worksection, Figma, Git, Code Review
Leadership: Team Leadership, Engineering Process Setup, Technical Ownership, Product Lifecycle
Management

WORK EXPERIENCE
Flutter Team Lead | Ukrposhta | Kyiv, Ukraine | Jul 2025 - Present
Ukrposhta 2.0 (Logistics / Postal Service)
• Lead a mobile team of 4 while remaining hands-on in Flutter/Dart development; drove the launch of the
new app version, scaling the active user base to ~1.3M users.
• Delivered core self-service features (parcel redirect, recipient change), significantly reducing branch
workload.
• Built the team's engineering practices from the ground up - design system, mandatory code review, and
unit, widget, and integration testing - cutting production bugs by 25-30%.
• Implemented CI/CD pipelines, accelerating feature delivery to QA and production by 25-30%.

Flutter Developer (Part-time Contract) | SVIT | Kyiv, Ukraine | Aug 2025 - Present
SVIT.Home (Smart Home Startup)
• Designed a scalable Flutter architecture and design system from scratch; own the full product lifecycle in
the App Store and Google Play.

• Developed real-time smart intercom control using WebRTC video streaming, camera integration,
Socket.IO, and push notifications.
• Wrote native Kotlin and Swift code via platform channels to integrate device-level intercom and media
features.
• Launched the Android version, expanding cross-platform availability and increasing active users by
~40%.

Flutter Developer | TemaBit (Fozzy Group) | Kyiv, Ukraine | Feb 2022 - May 2025
CityRyder App (Logistics / Delivery)
• Built the delivery app from scratch in Flutter within a cross-functional Scrum team of 14-16 people,
replacing an external vendor with an internal product team.
• Designed courier tools, route optimization, and real-time courier tracking with Google Maps SDK,
Mapbox, OpenStreetMap, background geolocation, and WebSocket, cutting average delivery time from
40-50 to ~25 minutes.
• Implemented courier KPI tracking (distance and time), improving courier efficiency and speed by
15-20%.
• Created a design system of reusable Flutter UI components shared across app features.
Silpo App (Retail / E-commerce)
• Integrated CityRyder real-time delivery tracking into the Silpo app used by millions of customers.
• Added personalized product recommendations to improve UX and increase average basket value.
• Delivered continuous feature updates, stability optimizations, and an interactive training widget.

Flutter Developer | Andromo | Kyiv, Ukraine | Jan 2021 - Feb 2022
Andromo (No-Code App Builder)
• Integrated in-app purchases (IAP) and Shopify API to expand monetization options for app-builder users.
• Migrated the core product to the latest Flutter version, improving performance, stability, and security.
• Reduced production bugs by ~2x through deep refactoring and systematic regression fixing.

EDUCATION
B.Sc. in Chemical Technology | Igor Sikorsky Kyiv Polytechnic Institute (KPI) | 2013 - 2017