Віталій

VITALII KOROVAI
SENIOR ANDROID SOFTWARE ENGINEER
tel: [відкрити контакти](див. вище в блоці «контактна інформація»)

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English: B1 (Intermediate)

SUMMARY

• Software Engineer with 10+ years of commercial software development experience across mobile, backend,
and full-stack projects.

• 5 years of hands-on Android development using Kotlin and Java, delivering production-ready applications,
modernizing legacy codebases, and implementing new features.

• Strong engineering background in software architecture, system design, RESTful APIs, relational databases,
and building scalable, maintainable applications.

• Experienced in designing and integrating backend services, optimizing application performance, and
collaborating throughout the software development lifecycle.

SKILLS

Android / Mobile: Kotlin, Java, Android SDK, Jetpack Compose, Navigation Component, Coroutines, Flow, Hilt,
Dagger2,MVVM, Room, Retrofit, DataBinding, ArcGIS SDK

Databases: SQLite, PostgreSQL, MySQL, Oracle SQL

Tools & DevOps: Git, Gradle, CircleCI (basic), Firebase, Linux (Ubuntu)

EXPERIENCE

AMC Bridge
Android Software Engineer
02/2021 – 02/2026

Project: Android E-Ticketing System
Enterprise Android application for construction logistics and digital ticket management.
Maintained a suite of Android applications for digital ticketing and logistics tracking.

Responsibilities & Achievements:
• Rebuilt and optimized application architecture for performance and maintainability
• Implemented digital ticketing workflows (creation, signing, status tracking)
• Refactored the application by migrating from RxJava to Kotlin Coroutines
 • Integrated ArcGIS SDK for geospatial visualization of routes and construction sites, enabling users to view and
explore over 100,000 geospatial objects
• Developed a REST-based synchronization layer with backend services, reducing synchronization time from 20
seconds to 4 seconds and decreasing data transfer by 60%.
• Introduced unit testing with 70% code coverage, reducing regression bugs by 35%
• Collaborated with backend and UX teams to improve system consistency
• Refactored over 40 screens across two Android applications, migrating legacy codebases to modern MVVM
architecture
Tech stack:
Kotlin, Java, Android SDK, RxJava, Kotlin Coroutines, MVVM, Retrofit, Room, Firebase, ArcGIS SDK, Gradle,
RESTful APIs, JUnit

Previous Software Engineering Experience
Software Engineer (Full-stack Web Developer / Java)
2013–2020

Worked on enterprise web, backend, and cross-platform solutions across the telecommunications, fintech,
industrial, and mobile-related projects.
Key achievements:
• Designed and implemented scalable software components RESTful API integrations, and database-driven
solutions.
• Contributed to system architecture, performance optimization, legacy modernization, and cross-functional
feature development in distributed engineering teams.

EDUCATION
Sumy State Pedagogical University
Master of Computer Science Education — 2023
Sumy State University
Bachelor of Information Technology — 2016