Андрій

Andrii Duda
iOS Developer (Swift / SwiftUI)
Lviv, Ukraine • [відкрити контакти](див. вище в блоці «контактна інформація») • [відкрити контакти](див. вище в блоці «контактна інформація»)
Telegram @Andrii_Duda2130 • github.com/andrey2130
PROFILE
iOS Developer with 3 years of experience building native applications with Swift and SwiftUI. Strong across the whole app lifecycle: SwiftUI,
UIKit, Combine and Swift Concurrency (async/await, GCD), Core Data, SwiftData and CloudKit, REST APIs and Firebase, applying SOLID and
clean architecture (MVVM / VIPER). Hands-on with real-time audio, Bluetooth Low Energy hardware, HealthKit and maps, and able to ship
cross-platform apps in Flutter when needed. Focused on performant, testable, maintainable code.
KEY SKILLS
● Native iOS with Swift, SwiftUI and UIKit; Combine and Swift Concurrency (async/await, GCD), animations and AutoLayout
● Architecture: SOLID, Clean Architecture, MVVM / VIPER; dependency injection and a modular, feature-first structure
● Persistence & sync: Core Data, SwiftData, CloudKit; offline-first storage with GRDB
● Networking & backend: REST / JSON over URLSession; Firebase (Auth, Firestore, Cloud Functions, Messaging, Crashlytics)
● Device & media: real-time audio (AudioKit), Bluetooth Low Energy (CoreBluetooth), HealthKit, SceneKit, AVFoundation, MapKit
● Tooling: Swift Package Manager, Git, CI/CD; cross-platform delivery with Flutter & Dart
PROFESSIONAL EXPERIENCE
iOS Developer at Tetalab
Lviv, Ukraine Sep 2025 - Present · 1 year
Building native iOS products in-house, end to end, from architecture to release.
● Fitness & body-composition app (SwiftUI, MVVM, Combine): camera-based body scanning through the LookCamera SDK
(xcframework) with a 3D body model rendered in SceneKit; HealthKit and Terra wearable-data integration; Firebase Auth and
Firestore with TypeScript Cloud Functions for email-verification codes; offline-first persistence with GRDB; Sign in with Apple via
AuthenticationServices, push through UserNotifications, and async/await concurrency.
● Real-time guitar effects app (SwiftUI): real-time audio DSP with AudioKit, SoundpipeAudioKit and AudioKitEX over AVFoundation
audio sessions; a Bluetooth Low Energy link to a hardware pedal over CoreBluetooth with a custom binary packet parser; preset
and settings storage in Core Data with import/export; Firebase Auth/Firestore with Crashlytics and Google/Apple sign-in.
● Jobs & shifts marketplace (SwiftUI + UIKit, MVVM): job and business listings, real-time in-app chat, ratings, saved jobs and profiles,
CV and document upload to Firebase Storage, image handling with PhotosUI, MapKit-based search, and push notifications via
Firebase Cloud Messaging; async networking with URLSession and Combine on a Firestore backend.
● Goal & habit tracker for iOS and macOS (internal): SwiftUI with the Observation framework, SwiftData persistence and CloudKit
sync across devices; progress analytics with custom bar and line charts; AppKit interop for the macOS build and data
import/export.
● IoT grow-box controller (internal): connects to grow-box hardware over Bluetooth Low Energy (CoreBluetooth central and
characteristic notifications), parses live sensor logs and visualizes environment history and trends; SwiftUI with the Observation
framework and PhotosUI, plus onboarding and device-connection flows.
● Applied SOLID and MVVM / Clean Architecture with Swift Concurrency across all products; integrated Sign in with Apple and
Google Sign-In.
Flutter Developer at Appexoft
Lviv, Ukraine Sep 2023 - Sep 2025 · 2 years
Delivered cross-platform mobile applications from scratch and maintained existing ones.
● Implemented Firebase authentication and push notifications for secure access and better retention.
● Integrated multi-platform payment systems (Stripe, Apple Pay, Google Pay, PayPal) for seamless in-app transactions.
● Applied MVVM and Clean Architecture with Provider, BLoC, GetIt and Freezed; integrated REST APIs and Firebase services.
● Independently led feature development and client calls; built complex payment workflows that improved satisfaction and reduced
payment-related support requests.
INDEPENDENT PROJECT
ParkShark is a cross-platform parking marketplace built with a small independent team of friends (2026). Native iOS in Swift with Apple
Maps (MapKit), plus a Flutter Android client using Google Maps and the Google Routes API (driving-time estimates); map-first discovery with
guest-first browsing before authentication; a Cloud Firestore backend with security rules and Cloud Functions; feature-first BLoC architecture
with GetIt / Injectable dependency injection and Freezed models; geolocation, push notifications, deep linking and multi-language
localization.
EDUCATION
Lviv Polytechnic National University · Bachelor's degree, Computer Engineering · Sep 2023 - Present
LANGUAGES
English Intermediate (B1) • Ukrainian Native