Profile image of oobretenov
@oobretenov
Flag of Bulgaria Plovdiv, Bulgaria
Member since March, 2011
4 Anbefalinger

Ognyan Obretenov

Online Offline
Programmer with more than 20 years of experience in - C,C++, C#, VB - Database design, MSSQL, MySql - Assembler, x86, Mips, Lc3, Pic - Arduino - PLC,HMI, SCADA,Zelio, Logo, AB, Delta, Unitronics, CNC
$22 USD/t
73 anmeldelser
6.1
  • 96%Fuldførte jobs
  • 99%Inden for budgettet
  • 99%Til tiden
  • 28%Genansættelsesrate

Portfolio

Seneste bedømmelser

  • image of Dynaba Find me a Supplier - ongoing work $1630.00 USD

    “Good programmer, we solved some great problems and learned with each other along the way. Very good to work with remotely. I will hire again.”

  • image of capitalcooling Project for oobretenov £64.00 GBP

    “I can't rate this freelancer high enough. The project was delivered fast and the support was fantastic”

  • image of livenadlet Project for oobretenov $131.00 USD

    “very professional freelancer, delivered the project on time and was happy to add or explain everything, will hire again for sure.”

  • image of Adewale A. MPLAB IDE simulator expert $65.00 USD

    “A pro programmer , timely and professional . Thanks”

  • image of wonderin5670 RGB LED Clock $349.00 AUD

    “Very easy to work with. Completed the first draft same day and little tweaks, as I thought of new things, were made within minutes! The end result is exactly what I had in mind when I started. Extremely easy to talk to. I will happily use again when I next have a vision I need to make real.”

  • image of umesh0670 Project for oobretenov -- 3 $80.00 NZD

    “Great Job, Highly recommended.”

Erfaring

Manager

Feb 2012

I am manager of Software Development Company

Manager

May 1995 - Jan 2012 (16 years)

Lecturer

Oct 1990

I am lecturer in department of Computer System.

Uddannelse

Master

1985 - 1990 (5 years)

Certificeringer

TCP/IP Networking (1993)

Digital Corporation

Tcp/IP Networking

Publikationer

CANOPEN PROTOCOL for comunication between pc-based CNC and DIGITAL SERVO DRIVES

CANOPEN PROTOCOL for comunication between pc-based CNC and DIGITAL SERVO DRIVES

Certificeringer

  • Numeracy 1
    98%
  • C 3
    88%
  • US English Level 1
    85%
  • ADO.NET 1
    83%
  • Visual Basic
    83%
  • SQL Level 2
    80%
  • MySQL Level 1
    80%
  • C++ Level 1
    78%
  • C# 1
    75%
  • VB .Net Level 1
    75%
  • Linux Kernel 1
    65%
  • Data Structures
    58%

Verifikationer

  • Facebook forbundet
  • Foretrukken Freelancer
  • Betalingsverificeret
  • Telefonverificeret
  • Identitet verificeret
  • E-mail verificeret

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