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Vladimir Kovalchuk

Ukraine Kropivnitskiy (Kirovograd), Ukraine
8 days 22 hours ago
A little busy a little busy
25 Safe completed
11 months 18 days ago
19 Clients
registered for 5 years
  • MySQL
  • java
  • Android
  • iOS
  • мобильные приложения
  • android developer
  • sqlite
  • swift
  • разработка под ios
  • android studio
  • Mobile development
  • Mobile application
  • Kotlin
  • Android SDK
  • Разработка мобильных приложений

Rating

Successful projects
93%
Average rating
7 of 10
Rating
1375
Apps for iOS (iPhone and iPad)
Apps for Android
18 projects
Apps for Android
8 projects
Java
4 projects
Apps for iOS (iPhone and iPad)
1 project
JavaScript

Skills

Programming

Mobile development

Administration

Portfolio


  • Займ срочно и без отказов

    Apps for Android
    Разработка прототипа приложения.
    Fasebook SDK, Firebase (Database + Storage)

    #Androd #java #Firebase #FacebookAPI
  • 3000 UAH

    Спортивные прогнозы - ЧМ 2018

    Apps for Android
    Приложение о спортивных событиях.
    Админка на php.
    Разрабатывал фронт и бек сам.
    (заблокировано политикой гугла)
    #xml, #java, #Android, #mysql, #php
  • 2000 UAH

    Спортивные прогнозы

    Apps for Android
    заблокировано политикой гугла
  • СпортИнфо

    Apps for Android
    Информация о спортивных событиях.
  • Спортивные ставки

    Apps for Android
    Проект по спортпрогнозам.

Reviews and compliments on completed projects 27 2

Quality
Professionalism
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Владимир непрофессионально подошел к выполнению заказа, срок сорвал, практически ничего по заданию не выполнил, на связь не выходил.

Sergey S. | Personal

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With Vladimir, the results are very quickly achieved.

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Successfully performs important functions.
Applying Java and Kotlin, it is a great opportunity to support any projects.

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The project had to be closed because of the iron restrictions on my phone. The app is made and works on more new versions of Android. But in this way, unfortunately, it has no sense for me. Vladimir was a young man, trying to help and understand to the last. Responsibility and communicability at a high level.

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After a series of promises, the project was never completed, most likely never started.

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The project is done quickly, pleasant to collaborate!The !

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The project is done well, pleasant to collaborate!

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Good implementation of the project, I recommend cooperation!

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The work is well done, I recommend cooperation!The !

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The task is well done, I recommend cooperation!The !

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Надежный и исполнительный фрилансер.
Приятно иметь дело.

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Рекомендую к сотрудничеству!

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Отличный исполнитель, настоящий профи своего дела. Все пожелания были учтены, результат выше моих ожиданий. Рекомендую всем. Спасибо большое!

28 January 2021 5000 UAH
Android design app on Figma

Quality
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Thank you for good work. Vladimir in connection. It works quickly, quality, even with its improvements that we did not hesitate to predict at the stage of the TZ setting.

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Все выполнено быстро и качественно. Будем работать!

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Successfully set up the UTM melt processing feature that allows the mobile application to track traffic sources from the Play Market, now we are able to determine where users will learn about the application.

17 January 2021 10 000 RUB
Correction of an Android Studio error - JsonTask

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He fixed the problem in the project, proposing a new method of solution.
This is what we were looking for.

8 January 2021 2000 UAH
Publication of iOS Application

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I strongly recommend cooperation. 4 “specialists” could not introduce my application before this, Vladimir decided everything for a number of days. The master of his business, who clearly discovers and fulfills the task. I will be happy to work further!

27 December 2020 2000 UAH
Push notification with Firebase android java

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greatly ! Everything at the highest level!

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Хорошая работа по выполнению! Рекомендую

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Доплата за переделывание по моей просьбе!

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Хорошая работа! Все трудности были преодолены! Рекомендую!

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Отличная работа! Ни единого бага! Рекомендую!

22 August 2020 3900 UAH
SWIFT, mobile application

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satisfied with work. It is worth noting that Vladimir even introduced a few moments that were not in the TZ. He has done additional work. He explained uncomprehensible moments and explained everything in detail. Some of the TZ moments were not implemented, but everything was immediately corrected. Therefore there are no problems. We will work further.

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I did everything in the best way with a really high level of implementation of the project. I strongly recommend cooperation.

5 April 2020 250 UAH
Fixing of Android

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Thank you for the successful implementation of the project! I recommend Vladimir as a professional and responsible executive!

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I highly recommend Vladimir as an experienced, erudited and proactive specialist. So it came out that this project had to work with the legacy code. Everything is done very well. In addition, I am grateful to Vladimir for the audit of the “high places” in the project.
We continue our work now.

29 May 2018 100 UAH
Access to the existing .GDB database

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The executor is very pleased!

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The project was done very quickly. There were delays from my side, the executive treated them with understanding, solve problems and difficulties not related to the project (help with the server) I recommend, great executive!

Activity

  Recent proposals 10
Swift – work on the project
5000 UAH
Simple add-on for IOS
6000 UAH
Consultation on the creation of a mobile application with an expert
1000 UAH
You need to log in to Apple.
1000 UAH
and development. and Android. The fashion. by Java/Kotlin
12 000 UAH
Swift Developer
11 111 UAH
Processing of the appendix
800 UAH
Development of Applications
750 UAH
Need to fix errors in the application on Kotlin
2500 UAH
Mobile Supplements
3000 UAH