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

Ognyan Obretenov 

Programmer with more than 20 years of experience in C,C++, C#, , SQL Database design Assembler PLC, CNC
$18 USD/hr
58 Reviews
5.7
  • 89%Jobs Completed
  • 99%On Budget
  • 99%On Time
  • 32%Repeat Hire Rate

Recent Reviews

  • image of studentbrave project Task $80.00 USD

    “Very Great Person”

    studentbrave Flag of Pakistan 2 months ago.
    • C Programming
    • Microcontroller
    • PLC & SCADA
    • Hire me
    • Assembly
    • x86/x64 Assembler
  • image of studentbrave task important3 $120.00 USD

    “Great Work.”

    studentbrave Flag of Pakistan 2 months ago.
    • C Programming
    • Microcontroller
    • PLC & SCADA
    • Hire me
    • Assembly
    • x86/x64 Assembler
  • image of Alexdki123 Short LC3 Project $40.00 CAD

    “Great freelancer!”

    Alexdki123 Flag of Canada 3 months ago.
    • Assembly
  • image of studentbrave new task 1 $150.00 USD

    “again good one”

    studentbrave Flag of Pakistan 3 months ago.
    • C Programming
    • Microcontroller
    • PLC & SCADA
    • Hire me
    • Assembly
    • x86/x64 Assembler
  • image of studentbrave Important Task $100.00 USD

    “Good Project”

    studentbrave Flag of Pakistan 4 months ago.
    • C Programming
    • Microcontroller
    • PLC & SCADA
    • Hire me
    • Assembly
    • x86/x64 Assembler
  • image of suddndaze Arduino and 4Dsystems Display $155.00 USD

    “Excellent Job. Oobretenov knows his stuff. Code was done on time. Will hire again.”

    suddndaze Flag of United States 5 months ago.
    • Microcontroller
    • Arduino
    • 4D

Experience

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.

Education

Master

1985 - 1990 (5 years)

Certifications

TCP/IP Networking (1993)

Digital Corporation

Tcp/IP Networking

Publications

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

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

Exams

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

My Top Skills

  • Assembly 28
  • x86/x64 Assembler 26
  • C Programming 18
  • Microcontroller 14
  • C++ Programming 12
  • PLC & SCADA 11
  • Arduino 4
  • C# Programming 3
  • Visual Basic 2
  • Linux 1
  • Microsoft Access 1
  • Database Programming 1
  • .NET 0
  • Windows Desktop 0
  • Android 0
  • SQL 0
  • Algorithm 0
  • Web Scraping 0
  • Visual Basic for Apps 0
  • Software Development 0

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