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Oleksandr MartyniukOM

Oleksandr Martyniuk

Android/KMP developer

€ 650/dag
Izegem, BE
3-7 jaar

Gemiddelde responstijd: 1 uur

Over Oleksandr

I’d love to help bring your ideas to life, from early-stage concepts to full-scale app solutions. Feel free to reach out!

As an experienced Android Developer, I have a strong background in working on commercial projects, which has enabled me to refine my skills and demonstrate my capabilities. Alongside my practical experience, I have developed numerous publicly available projects on GitHub, showcasing my expertise in this field. Furthermore, I have successfully published an app on the Play Store, serving as a testament to my proficiency as an accomplished Android Developer.

Android Tech-Stack:
Android studio
Java / Kotlin
Kotlin multiplatform
MVVM-MVI / Clean
Android SDK
Complex animations & responsive UI
Coroutines
Twilio / Agora / Element
Google Play Services
Hilt / Koin / Dagger 2 / Kodein
Glide
Picasso
Room
JSON, REST API
Push notifications
Git (Github / Gitlab / Bitbucket)
Firebase
Bluetooth / IoT Mobile Apps
Geolocation & Maps

Key Expertise:
• Audio/Video Calls: WebRTC integration for real-time communication.
• In-App Purchases and Google Play Billing.
• Geolocation and Firebase Services (e.g., FCM, Crashlytics, Analytics).
• Media Processing: Photo, video, and audio.
• Platform Migration: Converting iOS/web apps to Android.

#WebSocket #MobileAppDeveloper | #AppDevelopmentExpert | #SuccessfulProjects | #JobSuccessRate100 | #ClientSatisfaction | #ExcellentFeedback | #SwiftExpert | #CrossPlatformDev | #TechInnovation | #BackendDevelopment | #FirebaseIntegration | #AppSecurityPro | #InnovationInApps | #ContinuousIntegration | #PerformanceOptimization | #MobileAnalytics | #VersionControlGit | #CustomerCentricDev | #CustomAppSolutions | #AppDesignAndDev




📅 Last updated: April 02, 2026
  • Engels

    Tweetalig / moedertaal

  • Oekraïens

    Tweetalig / moedertaal

  • Nederlands

    Basiskennis

  • Russisch

    Tweetalig / moedertaal

Uitsluitend remote
Werkt voornamelijk remote

Werkervaring

  • D4Group,
    Android developer
    februari 2020 - Vandaag (6 jaren en 4 maanden)
    Ukraine
    Developed and maintained high-performance native Android applications using Kotlin and Jetpack Compose. Focused on creating scalable architecture (MVVM), optimizing app performance, and integrating complex REST APIs to enhance user experience for 70k+ active users.
    Kotlin Jetpack Compose Android Mobile development Mobile application
  • TraxGo,
    Android(KMP) developer
    DIGITAAL BUREAU & IT-CONSULTANCY
    maart 2024 - december 2024 (9 maanden)
    Belgium
    Developed and optimized TraxOne, a mobile ERP solution for field technicians. Focused on building the task management and digital work order modules, enabling technicians to manage schedules, track time, and complete checklists on-site. Implemented robust offline synchronization to ensure data integrity in areas with poor connectivity.
    Android Mobile application Mobile development Kotlin Jetpack Compose

Aanbevelingen

Wees de eerste die Oleksandr aanbeveelt

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Opleidingen

  • Master's degree Computer Science
    Dnipro University of Technology
    2018
    Master's degree

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