Андрій

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Andrii Servatiak
ANDROID DEVELOPER
Dynamic Android Developer with over 9 years of experience,
excelling in delivering high-quality mobile applications. Expertise in
Kotlin and Java, complemented by a strong command of modern
Android development tools and methodologies. Proficient in
implementing key features, conducting thorough code reviews, and
embracing best practices to enhance application performance.
Committed to continuous learning and improvement, leveraging a
collaborative approach to drive successful projects in fast-paced
environments. Passionate about creating innovative solutions that
meet user needs and elevate the overall app experience.

INDUSTRIES
Retail and wholesale, media and entertainment, information technology and services,
professional services, and computer software.
TECHNICAL SKILLS
GENERAL PROGRAMMING LANGUAGES Kotlin, Java, Android, C++
SOFTWARE DEVELOPMENT METHODOLOGIES Agile, Extreme Programming, Waterfall, Kanban
PLATFORMS, IDE AND TOOLS Android Studio, Eclipse, Visual Studio, IntelliJ
TECHNOLOGIES, AND IDEA
PROGRAMMING SKILLS
DATABASES Firebase Realtime Database, MySQL, SQLite,
Realm, Room
BUILD & DEPENDENCY Gradle, Maven
FRAMEWORKS Android SDK, Android Support Library, Google
Play Services, Android Jetpack Compose
OS KNOWLEDGE Android
DESIGN Mobile design, UI-UX
ARCHITECTURAL DESIGN Common design patterns, Clean Architecture,
MVP, MVVM, MVI
WEB TECHNOLOGIES JSON, XML, CSS
THIRD-PARTY LIBRARIES RxJava2, Firebase, Room, Retrofit, Picasso,
Glide, Realm, OpenCV, Dagger 2, PayPal SDK,
Facebook SDK, Google Maps SDK, Koin,
Navigation Component, Android Jetpack
Compose, LiveData, Flow, Coil, Hilt, Coroutines
TOOLS ISSUE TRACKING Jira, Trello, AzureDevops
SOURCE CONTROL SYSTEMS Git, Bitbucket, Gitlab, AzureDevops
CI/CD TOOLS Jenkins, GitLab CI, CircleCI, AzureDevops

EXPERIENCE DNS PROTECTION APP
Company: Nerdzlab
Customer: An Canadian-based company
Project description: Online marketplace for US-based sellers and users.
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Team size: 10 team members
Involvement duration: May 2025 - Now
Role: Android Developer
Responsibilities:
●​ Implemented key features and supporting an existing app.
●​ Performed design and code reviews.
●​ Conducted code refactoring.
Tools and technologies: Kotlin, Coroutines, Retrofit, VPN service, DNS java, Core dns
resolving system.

ONLINE MARKETPLACE
Company: Nerdzlab
Customer: An US-based company
Project description: Online marketplace for US-based sellers and users.
Team size: 10 team members
Involvement duration: 8 months (August 2024 - May 2025)
Role: Android Developer
Responsibilities:
●​ Implemented key features and supporting an existing app.
●​ Performed design and code reviews.
●​ Conducted code refactoring.
Tools and technologies: Kotlin, Coroutines, Retrofit, Firebase, Google API, Android
Components, Jetpack Compose, MVI, Google Pay, Google maps.

FOOTBALL TRAINING APP
Company: Nerdzlab
Customer: An England-based company
Project description: The customer requested a suite of mobile apps to train and involve
children in football (soccer).
Team size: 8 team members
Involvement duration: 8 months (January 2024 - August 2024)
Role: Android Developer
Responsibilities:
●​ Implemented key features and supporting an existing app.
●​ Performed design and code reviews.
●​ Conducted code refactoring.
Tools and technologies: Kotlin, Coroutines, Retrofit, Firebase,, Google API, Android
Components, Jetpack Compose, MVI

ONLINE BANKING APP
Company: Eleks
Customer: A USA-based company
Project description: The customer requested a suite of mobile apps to complement the
existing web-based recruitment platform.
Key application features included solutions to send and receive money; and manage
savings and budget.
Team size: 15 team members
Involvement duration: 4 years (April 2019 - December 2023)
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Role: Android Developer
Responsibilities:
●​ Implemented key features and supported an existing app.
●​ We performed design and code reviews.
●​ We have conducted code refactoring.
Tools and technologies: Kotlin, RxKotlin, Retrofit, Firebase, Coroutines, Google API,
Android Components, RSA decryption, and encryption.

SOCIAL APP

Company: Influitive
Customer: A Canada-based company
Project description: Our team worked on a system for that provides ability to created
internal hubs for your business. Using this system they can share news, info about
personal, and other useful information.
Team size: 6 team members
Involvement duration: 2 years (January 2022 - December 2023)
Role: Android Developer
Responsibilities:
●​ Developed new features.
●​ Performed code review.
●​ Conducted code refactoring.
Tools and technologies: Kotlin, Retrofit, Firebase, Hilt, Coroutines, Glide, Navigation
Component, OneSignal.

TESTING SYSTEM

Company: GlobalLogic
Customer: A Canada-based company
Project description: Our team worked on a system for testing the smart home control
panel and smart devices. It was a service that ran tests on the Android platform and
checked a lot of scenarios using Appium SDK.
Team size: 6 team members
Involvement duration: 3 months (October 2018 - December 2018)
Role: Android Developer
Responsibilities:
●​ Developed new features.
●​ Performed code review.
Tools and technologies: Java SE, Java Spring, JSON, REST, Appium, MQTT, Android ADB.

SERVICE SYSTEM

Company: GeekApps
Customer: An Israel-based IT company
Project description: The project included the development of a set of services for
customer business (for instance, real-time booking for barbershops or beauty salons,
online shops for local shops, real-time feedback and chat systems, features for changing
and choosing the app style: color, view style, and others). The subproject was a
real-time system that helped the customers inform their clients about new products or
sales.
Team size: 60 team members
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Involvement duration: 1 year and 4 months (May 2017 - September 2018)
Role: Android Developer, Team Leader
Responsibilities:
●​ Developed new features.
●​ Performed code and design reviews.
●​ Provided application support.
●​ Maintained communication with the customers.
●​ Managed the teamwork process.
●​ Generated new ideas.
Tools and technologies: Java, Kotlin, Retrofit, Firebase, RxJava, Coroutines, Picasso,
Google API, Baidu API, CI (Jenkins), Android Components.

COMMENT LIBRARY

Company: StarApps
Customer: A Ukraine-based company
Project description: Our team was requested to create an Android library that provided
native views for posting comments below the news, events, and others. The biggest
challenge was supporting the old versions of Android.
Team size: 3 team members
Involvement duration: 2 months (January 2017 - May 2017)
Role: Android Developer
Responsibilities:
●​ Provided application support.
●​ Performed code review.
Tools and technologies: Java, Android SDK, JSON, Retrofit, Material design.

RENTAL APP

Company: StarApps
Customer: A Canada-based company
Project description: The project goal was to develop an application that provided various
options for renting and selling houses or flats.
Team size: 6 team members
Involvement duration: 3 months (January 2017 - March 2017)
Role: Android Developer
Responsibilities:
●​ Developed new features.
●​ Provided application support.
●​ Performed design and code reviews.
Tools and technologies: Java, Android SDK, JSON, Retrofit, Facebook API, VK API, Twitter
API, Glide, Git, Google Maps, Places Api, Material design, Firebase Push Notification, MVP.
LANGUAGES ●​ English—upper-intermediate
●​ Ukrainian—native

EDUCATION MS in System Analysis and Data Science
Lviv Polytechnic National University, Department of Information Systems and Networks
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CONTACTS Phone number
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Email
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