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$50 USD / hour
Flag of POLAND
warszawa, poland
$50 USD / hour
It's currently 11:51 AM here
Joined June 20, 2021
6 Recommendations

Oleksandr K.

@aleksandrkolesni

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5.0 (40 reviews)
7.5
7.5
$50 USD / hour
Flag of POLAND
warszawa, poland
$50 USD / hour
94%
Jobs Completed
97%
On Budget
97%
On Time
17%
Repeat Hire Rate

Senior C/C++/Java, Web, Mobile developer

I have 10+ years of experience and mastery in App and Web development with different programming languages and platforms. I am honest, responsible, and dedicated to my work. IT knowledge: Software: C, C++, C#, Qt, Java, Kotlin, VB, .Net, Pascal, Python, Go, PHP, Scraping, Script... - Desktop Development: Desktop application, Browser Extension, Cross Platform Kernel Driver, Image & Video processing. - Mobile Development: Android, iOS mobile development and obfuscate, protection.
Freelancer C++ Programmers Poland

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Portfolio Items

3D CAD Project
3d CAD
Port Checker Application
PortChecker
PDF Split application
PDF Development
NVR, DVR Camera
RTSP, IPCAMERA
DVR Camera application by C#, WPF
RTSP, IPCAMERA
Kid app by Java, Kotlin
Mobile Development

Reviews

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Showing 1 - 5 out of 40 reviews
Filter reviews by: 5.0
$2,800.00 USD
Great working with this developer again. Very flexible and adaptive to complex deliverables.
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Flag of Heath B. @kingfishervw
19 days ago
5.0
$600.00 USD
Great response to the issue, very good communication.
C Programming .NET C# Programming Software Architecture C++ Programming
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Flag of Christopher K H. @chriskelly33vw
2 months ago
1.0
$50.00 USD
Very terrible!!! This guy wasted the time. No response and No updates from start. Also, communication is so poor. Do not work with Oleksandr for your project. He will mess up your project.
C Programming Java C# Programming C++ Programming
+1 more
I
Flag of Ilias B. @iliasbakoginnis6
2 months ago
5.0
$150.00 USD
thank you for the quick fix
Golang HTML5 HTML Game Development
+1 more
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Flag of Michelle N. @m1sh3ll
3 months ago
5.0
$100.00 USD
Great work, delivered the project in C# and VB as I wanted to learn how to build the tool myself. Will hire again!
Article Writing Christmas Database Programming Computer Vision
+1 more
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Flag of Jesse T. @afk513
4 months ago

Education

Bachelor and Master

Uniwersytet Warszawski, Poland 2006 - 2011
(5 years)

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Certifications

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Top Skills

C++ Programming 34 C Programming 33 C# Programming 28 Qt 23 Java 22

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