Валентин

Zaychenko Valentyn
Birth date: 03 December 1983
Region: Kyiv

Contact phone: [open contact info](look above in the "contact info" section)
E-mail: [open contact info](look above in the "contact info" section)
Skype: garthower

Senior/Lead C/C++ Developer

Base information

C/C++ experience in commercial projects – more than 20 years.
Intel x86/64 Assembler experience - more than 20 years.
Big development experience under OS Windows and UNIX/Linux.
Excellent knowledge STL, BOOST.
Knowledge Qt.
Knowledge OpenCV.
I know at the junior level such script languages: LUA, SQL, Python, Shell.
I have experience in micro-teams managing.

Work experience

Senior Software Engineer/Technical Team Lead
April 2020 - present time
SoftConstruct Ukraine

MSSQL Replicator
The project is designed to track changes in the database based on binary replication logs.
• Role: Principal Engineer/Technical Team Lead.
• Parse binary transaction operation (such as INSERT, MODIFY, DELETE etc.).
• Development crypto network protocol.
• Development of the Parser module.
• Development of the WatchDog module.
• Port the File Reader module from Linux to Windows.
• Technologies: C++20, SQL, Bash, STL, Boost, ZeroMQ, Kafka, Zookeeper.
• OS: Linux, Windows.

AJNA project
The project is designed to track objects and players at sport events.
• Capturing video using Argus SDK.
• Video stream processing using CUDA/OpenCV.
• Python modules development. The code is written in C++, the development of Python bindings.
• GStreamer plugins development.
• Technologies: C/C++17, Python, Bash, STL, Boost, ZeroMQ
• OS: Linux
Senior Software Engineer
July 2018 – April 2020
CPI-Kyiv

• Development services of the middle-layer level for the Crane ALIOP Pro payment service.
• Technologies: C/C++14, Python, LUA, SQL, STL, Boost, Protobuf, ZeroMQ, OpenSSL.
• OS: Linux.

Senior/Lead C++ Developer
January 2016 - Jule 2018
UNiT Co.

• Development of the registrar of settlement operations for Ukrposhta - fiscal and non-fiscal modules. Technologies: C/C+
+11, SQLite (development encryption codec with my own AES and Blowfish implementation), ZeroMQ, BOOST, STL.
• Development of a software package that allows to create personal identification cards for the Ministry of Internal Affairs and the
National Police of Ukraine. Technologies: C/C++11, SQLite, BOOST, STL, Windows, UTTOPPAN SDK, Canon SDK.
• Development of the GPE (Graphical Protection Element). Technologies: C/C++14, BOOST, STL, OpenCV.
• Development of the QR generator and reader. Technologies: C++11, STL, BOOST, OpenCV.
• ОS: Windows, Linux.

Lead C++ Developer
March 2015 - December 2015
Web Sun Group
• Development of a system of protection against hacking and analysis of the final product (Windows) - Anti-Debug, Anti-Cracking,
Crypting, Polymorphing.
• Development of a module for collecting and calculating statistics - NGINX-plugin, Linux, C/C ++.
• Development and implementation of a system for injecting security scripts into browsers, including HTTPS streams.
• Development of a real-time proxy for RTB, used RTBKIT C++.
• Technologies: Assembler x86/x64, C++, WinAPI, BOOST, STL, ZeroMQ, Google Protobuf, Shell, MySQL.
• OS: Windows, Linux.

Team-Lead, Senior C++ Developer
September 2012 - February 2015
Favbet Co.

• Development, monitoring and implementation of the Fav-TV service.
• Head of development department.
• Technologies: C++11, FFMPEG, ZeroMQ, Protobuf, BOOST, STL.
• OS: Linux

Senior C++ Developer
February 2011 - August 2012
SGCM Partners

• Implementation of trading client connectors to obtain exchange prices and to make transactions.
• Implementation of trading bots
• Performance optimizations.
• Technologies: C/C++, ZeroMQ, Protobuf, GLib, BOOST, STL, Python.
• OS: Linux

Engineer Software Developer
September 2009 - December 2010
 CoreTeam

• Development of code for encoding/decoding audio/video streams.
• Development of code for transmitting audio/video streams from the SDI track and from video cameras via FireWire.
• Development of code for playing audio/video streams in a TV channel via SDI.
• Development of an echo cancellation code for sound transmission.
• Technologies: C/C++, Erlang, BOOST, STL, DeckLink SDK, FFMPEG, RTMP, RTP.
• OS: Linux

Senior C++ Developer
October 2007 - August 2009
Antidote

• Development of the architecture and intermodular interaction.
• GUI development using Windows API.
• Porting and adapting code from 32-bit to 64-bit architecture.
• Technologies: C/C++, Delphi, Assembler, STL, Windows API.
• OS: Linux, Windows.

Leading Antivirus Core Developer
September 2006 - August 2007
UNA-NEO

• Analysis of viruses written for Windows and Linux with the addition of their signatures to the Antivirus database.
• Development of viral heuristics based on neural networks.
• Development of a disassembler for Intel x86 processors (including commands i686, FPU, MMX, SSE, SSE2)
• Development of a code execution emulator for Intel x86 processors (including commands i686, FPU, MMX)
• Technologies: C/C++, Delphi, Assembler, Windows API, STL.
• OS: Windows

Leading Antivirus Core Engineer
Febrary 2003 - September 2006
Ukrainian National Antivirus

• Analysis of viruses written for Windows and Linux with the addition of their signatures to the Antivirus database.
• Development of technologies for the detection of polymorphic and metamorphic viruses.
• Low level speed code optimizations for various processors (AMD and Intel).
• Utility development using C/C ++ and Delphi for internal use.
• Technologies: C/C++, Delphi, Assembler, Windows API, STL.
• OS: Windows

Language skills

English - pre-intermediate
Russian - native
Ukrainian - native