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Dmytro Matantsev
Android developer

Date of birth: 05.10.1992
Address: Kyiv, Ukraine
E-mail: [открыть контакты](см. выше в блоке «контактная информация»)

Skills/knowledge:

- Programming languages: Java, Kotlin – advanced.
- Software development: Object-oriented programming, MVVM, MVP, data
structures and algorithms, SOLID principles, clean architecture, design
patterns.
- Networking and Data storage: Hibernate ORM, Room (SQLite), OkHttp,
Retrofit, REST API, WebSockets, Shared Preferences/Data Store, Firebase
API, push-notifications.
- Android: Android SDK, Gradle, Jetpack Compose, View/XML, Kotlin Coroutines
& Flows, Dagger 2 (Hilt), Koin, navigation.
- Version control: Git, AWS, TFS (Visual Studio).
- AI-tools: Claude, Codex, Gemini (Android Studio AI assistant), MCP, others.
- Other: ExoPlayer, Firebase, Confluence, Bitbucket, GitHub, Google ML-kit,
Google API, Google Play console/Play Market.

Experience:

ITIS – Intern Android Developer/.NET (Telerik) Developer (partly).
Period: 25.08.2019 – 31.01.2021
www.itis.pl

ITIS is a Polish company based in Warsaw developing a web-services
on .NET technology for insurance companies on market of Poland,
Romania, Lithuania, Latvia and Estonia.
Responsibilities: Develop an experimental Android SOAP-client
application for Web Service (WCF) projects developed in .NET by ITIS.
Stack in use: Java, Apache requests, AnyChartView, PayU integration. Also
contributed in bug-fixing .NET projects with Telerik.
HS-Soft – Android Developer.
Period: 01.09.2021 – 31.07.2022
www.hssoft.com

HS-Soft is a Swiss company with offices based in Switzerland, Germany and
Ukraine and develop an electronic cash-assist system for bakeries, groceries,
coffee-shops and restaurants.

Responsibilities: Creating a new Android project for electronic scale SunMi S2
environment and developing existing one for electronic cash assist SunMi
T2/T2 mini. Main features: using a periphery like kitchen printer,
optical/sensor scanner and cash drawer. Stack in use: Dagger 2 (Hilt), Kotlin
Coroutines, GraphQL API (Apollo) for requests. MVVM/MVP architecture.

Weeteam – Android Developer.
Period: 15.02.2023 – 01.02.2025
weeteam.net

Weeteam is a Ukrainian company developing an e-learning platform
Skillzrun. Project provides a learning system that helps a schools to
maintain their own learning program in consistent way using subjects,
topics and lessons. Application is available on Play Market.
Responsibilities: Maintaining an educational project Skillzrun by creating a
new functionality/standalones applications, renewing versions in Play Market.
Stack in use: Kotlin, Coroutines, Firebase API for push-notifications, Glide,
Retrofit2, OkHttp for requests, Play Library, ExoPlayer for audio/video.
MVVM architecture.

Trackensure – Android Developer.
Period: 16.03.2025 – 25.02.2026
trackensure.com

Trackensure is a Ukrainian-Canadian company that supports ELD (Electronic
Logging Device) software for Android and IOS that helps commercial drivers
to record driving time and HOS (Hours of Service) data that required by US
and Canada FMCSA (Federal Motor Carrier Safety Administration) rules.
ELD devices replace paper logs and improve safety and improve
convenience.
Responsibilities: Editing ELD styles, co-lab in refactoring using newer
Android tech stack. Stack in use: Kotlin KMP, Jetpack Compose, MVVM,
clean architecture, Coroutines, Koin, Room, Material3.
Additional:

My own Android application La Translator recently published on Play Market.
Intended to translate a selected text in a different applications from origin
language to another. Stack in use: Kotlin, Coroutines, Google MLKit API.

Education:

10.2014 – 07.2017: High School of Informatics in Warsaw.
Faculty: Informatics.
Specialization:Software engineering.

9.2009 – 6.2013: R.Glier Kyiv Institute of Music.
Specialization: Classic guitar.

Foreign languages skills:

English – advanced.
Polish – advanced.
Ukrainian – native.
Russian – native.

Interests and hobbies:

Experienced in FL Studio, Adobe Audition, Sound Forge. Play a guitar, write
music. Taught a guitar in music school. Preferred sports: bicycle, skating,
swimming, running. Love traveling. No bad habits.