Sergey Kolosov

Sergey Kolosov

Software Developer

Taganrog, Russia



What's the difference?

I have a big experience with Linux(administration, deployment, user and kernel level programming) and can work not only as software developer, but also as linux consultant. I have done several embedded projects(ARM and embedded linux). I am interested in virtualization technologies, mostly in KVM and of course have done related projects. I have also DB knowledges(PostgreSQL especially) and interested for development distributed software in Erlang. I am inspired by learning new technologies, t…


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Work History & Feedback

Create C++ Prototype for embedding Gecko (XULRUNNER) with GTK+

“Great programming and communication skills!”
32 hrs @ $25.00/hr
Earned $792

Qt5 Raspberry Pi QMultimedia Audio With Pulseaudio

“Sergey did excellent work for me and took the time to ask questions and make sure it was done right. I was very happy with the work - Thanks!”
Fixed Price $185

Simple Linux library for printing text

“It was a pleasure to work with Sergey. He provided exactly what I needed and even added some extra things that I mentioned on the side but where not part of the original spec. Communication, English language and availability was very good. If I have another project in this area in the future, Sergey would be my first choice.”
Fixed Price $340

Linux programmer

“Excellent knowledge of linux, crosscompiling and C.”
7 hrs @ $22.22/hr
Earned $159

.NET SDK for Raspberry Pi

“Great developer, will use him again!!”
184 hrs @ $20.00/hr
Earned $3,677

Research JVM for ARM Spear 320 CPU

“Excellent linux and sources compiling knowledge and fast response. We will continue to work with Sergey! Thanks.”
Fixed Price $78

Use Mozilla's PyXPCOM to embed Gecko rendering engine into PyGTK window

Job in progress

177 hrs @ $25.00/hr
Earned $4,375
Tests Taken
Name Percentile Score

PostgreSQL Test


PostgreSql 8.1.3 Test


Redhat Linux 9.0 Admin Test


Unix Test