Изображение профиля oobretenov
@oobretenov
Флаг Bulgaria Plovdiv, Bulgaria
На сайте с 18 марта 2011 г.
4 Рекомендации

Ognyan Obretenov

Онлайн Офлайн
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/ч.
73 отзыва (-ов)
6.1
  • 96%Выполненные работы
  • 99%В рамках бюджета
  • 99%В срок
  • 28%Рейтинг повторного найма

Портфолио

Последние отзывы

  • изображение 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.”

  • изображение capitalcooling Project for oobretenov £119.00 GBP

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

  • изображение 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.”

  • изображение Adewale A. MPLAB IDE simulator expert $65.00 USD

    “A pro programmer , timely and professional . Thanks”

  • изображение 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.”

  • изображение umesh0670 Project for oobretenov -- 3 $80.00 NZD

    “Great Job, Highly recommended.”

Опыт

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.

Образование

Master

1985 - 1990 (5 years)

Сертификаты

TCP/IP Networking (1993)

Digital Corporation

Tcp/IP Networking

Публикации

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

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

Сертификаты

  • 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%

Верификации

  • Соединено с Facebook
  • Предпочтительный фрилансер
  • Способ оплаты верифицирован
  • Телефон подтвержден
  • Личность подтверждена
  • Электронный адрес подтвержден

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