Oleg V.
Private message 
Kyiv,
Ukraine
available for hire
Rating
Language proficiency level
Українська: fluent
Русский: fluent
English: intermediate
CV
2024
SchoolQuiz3.0 - redesigned the app, worked on promotion, conversion analytics, user feedback and survey analysis, server load analysis, and business goal creation.
Marketing program from Google - a comprehensive program consisting of seven courses.
2023
gallery - video editor, photo editor/filter, third-party SDK usage, design, password protection.
dialer - rewrote the project from Java to Kotlin, encrypted communication, used a third-party SDK in C++ and configured and built it, design.
contacts - display of contacts from the server, updating contacts.
UserGuide - a library that displays a user guide that may contain usage instructions, text, video from the server, and images, with a refined and extensive functionality.
2022
SchoolQuiz2.0 - quiz app with 25 screens (chat, arena, ads, store, profile, etc.), used Firebase as the server, background loading, clean architecture, quests loaded from other APIs, mechanism for translating quests, and extensive Firebase functionality.
file manager - PDF, archiving, design, strong password protection within the app.
2021
notes - notes with password, tasks, reminders.
shopping list - shopping list with progress tracking, notes, and daily online recipes.
mesh chat - chat without internet, using Wi-Fi and Bluetooth.
Skills and abilities
Programming
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Desktop Apps
from 668 USD for month
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Java
from 668 USD for month
Mobile development
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App Development for Android
from 668 USD for month
Portfolio
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1114 USD Social Network
App Development for Android
I created a #social #network for order, which includes a #feed, #comments, #photos, #profiles, text #posts, and links using #Firebase.
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2227 USD School Quiz
App Development for Android
SchoolQuiz 3.0 is a mobile app for hosting #quizzes. Users can choose from various question themes such as Geography, Space, Mathematics, and many more. The app also features a rating system and the ability to watch #ads for bonuses.
Main Features:
Quizzes on various topics.
… Rating system to track progress.
Earn bonuses by watching ads.
User profile with diverse statistics.
Create your own quiz questions.
#Chat to interact with other users.
Qualifications for additional features and roles.
Automatic question #translation for #international users.
Reviews and compliments on completed projects 7
11 August 2025
111 USD
Create a simple Android app News with categories
The work was done professionally. Oleg also provided suggestions and consulted on several issues. Overall, I recommend!
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17 March 2025
17 USD
Implement hints in the Android app
The work was done well. Open to communication. I recommend.
8 November 2024
89 USD
Android Kotlin, Java. Android 14 (API level 34) оновити
Great job. The app was updated quickly and with high quality. Thank you for your work. I will reach out again.
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11 June 2024
89 USD
Upgrade of the DocRadar application. Android (Kotlin)
Oleg pleasantly impressed with his competence and willingness to help. Everything was done qualitatively and within the agreed deadlines. We hope to continue cooperating with him. Thank you for the fruitful cooperation and recommend this specialist to other clients.
30 April 2024
89 USD
Redesign of Android Kotlin application
All quickly, the developer did everything well
21 April 2024
13 USD
Help with the project, the loading is lagging
Super, well done! We will stay in touch
20 April 2024
11 USD
Kotlin Coroutines
Freelancer is great! Helped me understand the project and I will reach out again!
Activity
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iOS/Android Developer
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iOS/Android Developer
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Android Developer (Kotlin)
601 USD
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Java specialist needed
223 USD
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Development of an Android mobile application
573 USD
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Consultation on creating a mobile application
33 USD
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Android layout
25 USD
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Project
1345 USD
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Android Kotlin (code included) connect Firebase API and Dropbox
60 USD
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Taxi
17 USD
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