Profile image of kalvyn
Flag of Slovakia Bratislava, Slovakia
Member since April 26, 2013
2 Recommendations


Online Offline
I am a programmer with the expert-level knowledge in C/C++, OpenGL, Qt framework, Qt Cryptographic Architecture (QCA). I have also good experiences with MFC, C#, DirectX, MySQL, HTML, CSS, Java, Android, XML, PDF, Pascal, Basic, x86 Assembler, VHDL, Message Passing Interface (MPI), Subversion (SVN), Nullsoft Scriptable Install System (NSIS), Amazon Web Services (AWS), SSL & Digital Certificates, Cryptography, Hardware keys programming etc.
$15 USD/hr
3 reviews
  • 75%Jobs Completed
  • 100%On Budget
  • 100%On Time
  • 50%Repeat Hire Rate


Recent Reviews

  • image of Robert D. C++ stock scan and moving averages functions needed $200.00 USD

    “As always A++ programmer. Very Professional, and responds to questions within 24 hours (mostly within a few minutes) we will do more business! A+”

  • image of Edward D. user interface refinement $64.00 USD

    “Excellent work.....will hire immediately for further work, thanks”

  • image of Robert D. Etrade Oauth C++ $50.00 USD

    “Excellent..and very skilled programmer. They were very professional and responded to all inquires within 24 hours (most of the time within 12 hours) I will use again!!”


Self-employed person

Oct 2012

I am working for myself.

Software developer/Team leader

Feb 2009 - Oct 2012 (3 years)

I worked as a C/C++ developer for this international company, whose nature of business was anti-piracy technology and security analyse. Later I worked here as a team leader.

Software Developer

Jun 2007 - Feb 2009 (1 year)

Developing programs in C/C++ using C++ Builder for gaming / slots machines (casino management). Developing plugins in Microsoft Visual C++ for Fabasoft eGov-Suite (Fabasoft eGov-Suite is the leading product for electronic file and workflow management in German-speaking countries)


Diploma in mechatronics (combines mechanical, electronic and software engineering)

2002 - 2007 (5 years)


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