EXPLORE

(80 reviews)

Ognyan O.

@oobretenov

5.0

6.6

99%

Do My Best!

$32 USD / Hour

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Bulgaria (5:40 AM)

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Joined on March 18, 2011

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4 Recommendations

$32 USD / Hour

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Programmer with more than 25 years of experience in - C,C++, C#, VB.NET - Database design, MSSQL, MySql - Assembler, x86, Mips, Lc3, Pic - Arduino - PLC,HMI, SCADA,Zelio, Logo, AB, Delta, Unitronics, CNC

Verifications

On time

99%

On budget

99%

Accept rate

92%

Repeat hire rate

25%

See all Assembly Developers in Bulgaria

Portfolio

Unitronics Ladder

Logic ZelioSoft

Monitoring and contol system for Iron Production, based on AB SLC and RSView

RS View Control System

AB PLC Micrologix

8 Axes CNC System

Desktop Accounting and Warahouse Information system, using VB6, Ado and MS access db

VB6 and Access DB Information System

Unitronics Ladder

Logic ZelioSoft

RS View Control System

AB PLC Micrologix

8 Axes CNC System

VB6 and Access DB Information System

5.0 · 80 Reviews

80 Reviews

I need guidance on using Unitronics V570 HMI with a 3XB snap-in I/O for implementing a PID control in a ladder diagram to regulate a tank's heating element.

Great man to work with, very knowledgeable, very helpful, will definitely be utilising Ognyan’s expertise again.

Graphic Design

Programming

Project for Ognyan O.

Second project and the result matches my ideas exactly. Very nice.

+1 more

Project for Ognyan O.

Within this project we searched for experienced professional software developers or system administrators to fill out a survey. Working with this freelancer was exactly what we were looking for! Working with them helped us a lot with our research project. The communication in advance as well as the survey participation were extremely satisfactory and highly professional. Thank you very much for the opportunity to learn from your experiences.

+1 more

PLC automation program

Excellent programmer, greate job and right on time, will hire Ognyan again and again!

PLC & SCADA

Project for Ognyan O. -- 18/09/25 22:34:26

Absolutely fantastic Job. Not only completed the programming of PLC controller to our requirements with some complicated requirements . Went above and beyond what i asked and provided a much more practical solution than i had asked for. The program is in use in a commercial product and achieving consistent sales and the program is faultless. I have no hesitation in recommending Ognyan O for your project. At times we received a response to questions at a weekend, never more than a few hours to wait

+1 more