Senior React Native Engineer | Firebase Architect | iOS & Android Expert

Dmytro Mykhalchenko

📍 Ukraine

📧 dmitriymykhalchenko@gmail.com

📱 +380939099333

💼 Available for Remote / Contract / Full-Time Opportunities

Senior React Native Engineer with 6+ years of commercial mobile development experience and 10+ years in software engineering. Specialized in React Native (Bare Workflow), Firebase ecosystem, BLE & Wi-Fi integrations, IoT solutions, push notification systems, App Store & Google Play releases, and scalable backend architectures. Published multiple applications on the App Store and delivered commercial products for international clients worldwide.

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Dmytro Mykhalchenko

About Me

Building scalable mobile products for iOS & Android.

I specialize in designing and developing scalable cross-platform applications for iOS and Android, from architecture and backend integration to deployment and long-term support.

Over the years, I have worked on social platforms, sports applications, fintech solutions, location-based services, smart-home integrations, educational systems and enterprise-grade mobile products.

My expertise extends beyond React Native development into Firebase infrastructure, real-time systems, IoT integrations, BLE communication, push notification platforms, mobile architecture, performance optimization and App Store / Google Play delivery.

I enjoy taking ownership of products and transforming ideas into polished, production-ready applications used by real users.

I am also currently developing eduSOS in a real school environment, combining my mobile engineering experience with practical needs of education, safety, emergency alerts and school communication.

✓ 6+ Years Commercial React Native Experience
✓ 10+ Years in Software Development
✓ Published Apps on App Store & Google Play
✓ Expert in Firebase Ecosystem
✓ IoT & Smart Home Integrations
✓ BLE & Wi-Fi Device Communication
✓ Native Android & iOS Experience
✓ Real-Time Applications & Push Infrastructure
✓ Full Product Development Lifecycle
✓ Architecture & Technical Leadership

What I Build

From idea to production-ready mobile product.

✓ React Native apps for iOS & Android
✓ Firebase backends and cloud architecture
✓ Push notification systems
✓ BLE and Wi-Fi device integrations
✓ Smart Home and Tuya integrations
✓ Maps, geolocation and real-time tracking
✓ App Store and Google Play releases
✓ Mobile widgets and background features

Portfolio

Featured Projects

Selected public applications are available on the App Store. I have also worked on many additional commercial and enterprise mobile applications that are private, region-restricted or available only for internal business use.

eduSOS

School safety platform used in a real educational environment. Includes SOS alerts, emergency notifications, air raid alerts, automated bell schedules, widgets, Firebase backend and administration panel.

React NativeFirebaseCloud FunctionsFCMWidgetsSchool SafetyIoT

Production application currently used by educational institutions.

TruLink

Identity verification and secure mobile flow.

React NativeiOSCameraPush Notifications
App Store

Pulse Up

Productivity and wellness mobile application.

React NativeFirebaseAnalytics
App Store

VibeSpot

Location-based social discovery platform.

React NativeMapsSocial App
App Store

MindSelf

Wellness and self-improvement mobile application.

React NativeUI/UXMobile

Private / region-restricted application.

Quick

Commercial mobile application delivered for international clients.

React NativeMobile AppPrivate Project

Private / internal business application.

Nowat

Mobile application with modern UI and production-ready architecture.

React NativeiOSAndroidPrivate Project

Private / region-restricted application.

Professional Experience

Experience

Senior React Native Engineer

Dominusse

January 2020 – Present

  • • Leading development of cross-platform mobile applications for international clients.
  • • Mobile architecture design, Firebase infrastructure, push notifications, BLE and IoT integrations.
  • • App Store & Google Play releases, CI/CD setup, production monitoring and maintenance.

React Native Consultant

Upwork

2021 – Present

  • • Working directly with startups and businesses worldwide.
  • • Successfully completed mobile application projects and maintained 5-star client reviews.
  • • Delivered sports, productivity, social networking and business applications.

Junior React Native Developer

AppSider

November 2019 – January 2020

  • • React Native development, API integrations, UI implementation and application maintenance.

Software Engineer / System Administrator

NIBULON LLC

September 2014 – September 2019

  • • Enterprise infrastructure support, Windows Server administration, network maintenance and security management.

Technical Stack

Technologies I work with

Mobile

React Native (Bare Workflow)TypeScriptJavaScript ES6+Redux ToolkitReact NavigationReanimatedGesture HandlerNative ModulesAndroid SDKiOS SDKXcodeAndroid Studio

Backend & Cloud

Firebase AuthenticationCloud FirestoreCloud FunctionsCloud StorageFirebase AnalyticsCrashlyticsFCMREST APIsWebSockets

IoT & Hardware

Bluetooth Low EnergyWi-Fi CommunicationTuya Smart HomeSmart DevicesSensors & ControllersReal-Time Device Management

DevOps & Tools

GitGitHubGitLabAzure DevOpsCI/CDTestFlightApp Store ConnectGoogle Play ConsoleFigmaZeplin

Contact

Let's build something great.

Email MeUpworkGitLabGitHub

📧 dmitriymykhalchenko@gmail.com

📱 +380939099333

📍 Ukraine