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Олександр Степанюк

@0006706

Mobile developer across Android, iOS, and Flutter who contributed to the YouVersion Bible App and built apps across automotive, finance, and messaging.

Ukraine

Message

I worked for 2.5 years as a Flutter and iOS native developer on the YouVersion Bible App, contributing to a product in the YouVersion family that has surpassed 1.1 billion installs. My work included Flutter and native iOS development.

As Lead Dev on MyMazda, I worked on an app that helps Mazda owners manage vehicles, service appointments, and maintenance history. I also worked on INOMO’s Flutter web administration interface, integrating GraphQL and REST services.

Across other projects, I developed native mobile apps for inventory management, banking rewards, smart home control, and multiplayer trivia, and worked on messenger and calling apps using technologies including WebRTC, XMPP, and SIP.

Experience

Work history, roles, and key accomplishments

Lead Dev

NDA Banking app

Development of a native Android application for a large-scale financial loyalty and rewards platform. The application allowed users to manage their loyalty account, track reward balances and transaction history, discover partner offers and promotions, and find nearby locations.

Android Java REST

Developer

Smart Plug Control Mobile Application

Development of native Android and iOS applications for controlling and managing a smart power outlet.

Android iOS Java Swift WiFi TCP IP REST APIs Device Communication

Flutter/iOS native developer

Bible

Worked as a Flutter and iOS native Developer on the YouVersion Bible App for 2.5 years. Contributed to a product in the YouVersion family of apps, which has surpassed 1.1 billion installs worldwide.

Flutter Dart River Pod Bitrise gRPC Protocol Buffers REST SQLite Pigeon Melos Crowdin Mockito Golden Tests Java Kotlin WorkManager Braze Firebase Sentry Swift SwiftUI Core Data

Developer

Online Multiplayer Trivia Android Application

Development of the Android version of an online multiplayer trivia and intellectual gaming platform. The application provided several competitive game modes, tournaments, player rankings, user-generated questions, game history, and social features.

Android Java REST WebSockets

Lead Dev

Chromium Browser Fork for Android Embedded Devices

Development and customization of a Chromium-based system browser for Android embedded devices. The project involved maintaining a custom Chromium fork and integrating a proprietary encryption mechanism into the browser at the native C/C++ level.

Chromium C C++Android Android System Apps Chromium Build System Native Android Development

Lead Dev

ChartIQ-Flutter-SDK

Flutter SDK for the ChartIQ JavaScript library. The SDK can be extended to support more elaborate implementations by adding code to invoke ChartIQ library functions directly or by creating a bridge file.

Flutter Platform View Platform Channels

Lead Dev

INOMO

INOMO Technologies develops telematics solutions that collect and process data from connected vehicles. As Lead Developer, I worked on its Flutter web administration interface, using BLoC for state management, GraphQL and REST for backend integration, and Keycloak for authentication.

Flutter Web BLoC GraphQL REST Keycloak

Lead dev

Messengers

10+ messenger/call apps with different variations of chat and call technologies.

Android iOS Flutter WebRTC XMPP SIP

Lead Dev

MyMazda

MyMazda is a mobile app that helps Mazda owners manage their vehicles in one place. It provides access to service appointments, maintenance history, roadside assistance, and recall information.

Kotlin Retrofit RxJava Foreground Services 360 View MVVM UIKit Moya RxSwift

iOS developer

HandiFox

HandiFox is an inventory management and sales platform for businesses with warehouses, retail operations, and field teams. I worked on the native iOS app using Swift, UIKit, Realm, and RxSwift, connecting mobile workflows with the platform REST APIs.

Swift UIKit Realm RxSwift REST

Lead Dev

Babyname

Babyname is an app that helps couples choose a name for their child together. As Lead Android Developer, I worked on the Android app that brings this shared name selection experience to users.

Android Java REST RxJava