Changing How the World Works.
 
 
  • Feedback:   (5.00 of 5)
  • Percentile: 99%
    Based on 2 feedbacks
Hourly Rate: $24.56
Total oDesk hours:
1,258
Location:
Zhitomir, Ukraine (GMT+02:00)
English Skills: (self-assessed)
4.0
Member Since:
March 23, 2006
Last Worked:
November 20, 2008
Current Assignments:
1
Total Assignments:
4
oDesk Ready:  
Yes
 
 
 
 
Affiliated with: UACoders
Feedback:  (4.40 of 5)
Percentile: 43%
Based on 161 feedbacks
Total oDesk hours:
22,582
Location:
Zhitomir, Ukraine (GMT+02:00)
Member Since:
August 9, 2005
Last Worked:
November 21, 2008
Current Assignments:
42
Total Assignments:
241
 
 
 
 

Sergiy Zaschipas - Expert: PERL, PHP/AJAX/DRUPAL, MYSQL, IT architect - UACoders Consultant, Ukraine

$Success = $Experience * $Knowledge;  # The basis. . . . I am Sergiy Zaschipas, i am system architect, manager and co-owner of custom software development company UACODERS: http://www.uacoders.com/ (TM). Me and my team looking for interesting projects where we could apply our knowledge and provide most effective solutions. Our expertise: * project analysis, management and tracking, * complex internet services development, integration and support, *...
Recent Work History & Feedback
Buyer ID From/To Job Title Paid Feedback
43688 07/2008 - Present Perl/PHP developer with software enginering and network skills $10,076 (430 hrs @ $23.46)
16966 05/2008 - 06/2008 Perl OOP Developer $1,562 (87 hrs @ $17.89)
16966 11/2007 - 05/2008 Perl Developer with OOP experiece $12,076 (675 hrs @ $17.89)
21624 10/2007 - 02/2008 PERL WEB DEVELOPER $496 (36 hrs @ $16.44)
oDesk Tests Taken
Name of Test Score Percentile Date Taken Duration
Perl 5 Test 4.00 91% TOP 10% 07/16/2007 39 min
oDesk Readiness Test for Independent Contractors and Company Managers 4.40 64% 07/31/2008 17 min
Recent Candidacies
Job Opening Title Initiated By Date
PHP/Postgres Developer Buyer November 12, 2008
Senior OO Perl/MySQL :: Data Loading & Munging Buyer November 1, 2008
PHP/AJAX senior developer Buyer October 26, 2008
Job Category Interests

Web Development

Software Development

Networking & Information Systems

Writing

Administrative Support

 
Skills
Skill Experience Level Last Used Description
Artifical Inteligence 5 yrs 4.0 2006
C/C++/Unix 10 yrs 5.0 2007 Job Title: WEB Cam Sharing ServicesThis System which allow paid web cam or video source sharing. Systemm support  wide range of payment sources, broadcast sharing (one to many), admin interface, seller and buyer members area, tickets system Server Part: Linux/FreeBSD Client Part: Windows (IE),System have high level of scalability,  high security, content control system, easy multilevel administration, access control subsystem, multilingual interface support. Technologies used: PHP/MySQL, C, Perl,  Apache, Bind, Delphi, ActiveX, IE objectsNumber of developers: 3Role: Project Manager, C Programmer (Server Part)Duration: 6 monthLink: Was signed Non Disclosure Agreement
C/C++/Win32SDK 10 yrs 3.0 2004 Project Title: Team management and tracking system. 
Project Scope: Client/Server Software which allow Team Manager account working time of team members and get statistics,screenshots mapped to timeplan of development.

Features:  Smart Events Recognition, Time checker, AntiCheat subsystem, Client Installshield, Support Windows 9x/WindowsNT/2000/XP.

Technologies used: PHP/MySQL, Borland C++ Builder/Win32SDK, Networks.

Number of developers: 2Role: Project Manager,       Windows Client developer.

Link: Non-Disclosure Agreement
CSS 4 yrs 5.0 2008 Job Title: CSS patching

Patching CSS design of drupal site to achieve compatibility with Internet Explorer 5.x, 6,7, FireFox, Opera. Without global changing html design and drupal core CSS.
 Responsibilities: CSS investigation, development patches, hacks. Managing graphics designer which advice with redoing some graphical and color solutions.
http://www.xm.com
Database Modeling 8 yrs 5.0 2008 http://iopay.com
Project Title: Internet Online Payment System.

Project scope: Payment system with cc accepts and safe payments (recurring payments, event ticket selling, direct selling, online content selling, and much more).  

Features: FreeBSD/Linux compatible,  High Level of Scalability,  High Security, half automatic multilevel fraud detection subsustem, easy multilevel administration, access control subsystem, multilingual interface support, multiple currencies support, anti-abuse control, multiple payment sources.

Technologies used: PHP/MySQL, Perl, C,  Apache,  Smarty, XMLRPC.

Number of developers: 6

Role: Project Manager, Concept Developer,DBADuration: 8 month
Delphi 7 yrs 4.0 2004 Job Title: Accounting system for Pharmacy Store
This system include system for enter data about items (including support of barcode scanners), security subsystem, generation about 200 different reports and charts.
Role: Lead Developer
Number of Developers: 3
Drupal 2 yrs 4.0 2007 http://www.xm.com
Job title: Frontend for Free Web Hosting Services.This Frontend allow signups, and service-customer communications. Frontend contain admin Was developed new modules to integrate existing Service API to Drupal.
Responsibilities: 
-Create categories and and nodes map
-Select existing modules to install 
-Development of modules for signup process, customer request management system, email templates, hosts directory.
-Management of creating Drupal modules for administration.
HTML/DHTML 8 yrs 4.0 2008
Informix 3 yrs 2.0 2003
LAMP administration 9 yrs 5.0 2008 http://www.xm.com
Project Title: Free Hosting Services.
For Free Hosting Project i developed easy installation scripts of Linux hosts which contain user pages. Optimised Apache,DNS,MySQL, Frontend And Backend SubSystem.
Wrote special modules for apache to increase performance of hosting system and avoid DoS Attacks and cheating
LaTeX 7 yrs 2.0 2004
MS-SQL 2 yrs 3.0 2005
MSSQL 3 yrs 4.0 2005
MySQL 8 yrs 5.0 2008 http://www.iphorum.com
Project Title: Free Forums services.

Project scope: distributed internet free Forums services based on PHPbb  engine, system with powerful and easy administration with standart PHPbb admin panel, advertisement modules, SEO, anti-abuse subsystem.  

Features: FreeBSD/Linux compatible  High Level of Scalability,  Automatic traffic accounting , half-automatic abuse detecting, High performance, Technologies used: PHP/MySQL, MySQL Replication, Perl, C, Apache, Bind, Bind-DLZ, Smarty, XMLRPC

Number of developers: 3Role: Project Manager, System Integrator, Core Developer.Duration: 4 month
MySQL Performance Optimization 6 yrs 5.0 2007 Project Title: Consulting/DataBase performance optimisation.
Scope: Find/remove bootlenecks at existent free community service SLANDO. After growing loading of service system start slowdown and had much breakdown points. After investigation of the system was found ways for improvement performance by changing indexes, queries and by using some software tricks. System was improved in speed upto 600%


Features: Linux/MySQL/Apache/PERL compatible High Level of Scalability, Automatic traffic accounting , half-automatic abuse detecting, High performance, Technologies used: MySQL, APACHE, PERL, Mason.

Duration: 2 weeks.

Online Payments 6 yrs 3.0 2007 http://www.iopay.com
Job Title: Integration of payment processors to existent ecommerce application.Integration PayPal,Webmoney and other payment system to ebank payment system.Responsibility: Project Manager, Lead Developer
Oracle 2 yrs 3.0 2005
Perl 8 yrs 5.0 2008 Project Title: FreeHosting Services

Project scope: distributed internet free hosting system with powerful and easy administration, system of click accounting, subsystem of anti-abuse analyzer with artificial intellect, tickets system.  

Features:  High Level of Scalability, Load Balancing, Automatically accounted  traffic, half automatic abuse detecting, High performance, FreeBSD/Linux compatible

Technologies used: PHP/MySQL, Perl, C, Apache, Proftpd, Bind, Bind-DLZ, BerkeleyDB Smarty, Sigma, Lore, XMLRPC,Number of developers: 3

Role: Project Manager, DBA, Perl,C modules developer

Duration: 5 month
PHP 8 yrs 4.0 2008
PostgreSQL 4 yrs 4.0 2007
Project Management 6 yrs 4.0 2008 Projects where i was project manager:http://uacoders.comhttp://art4soft.comhttp://xm.comhttp://iphorum.comhttp://zhitomir.orgTeamLogger projecthttp://hoalanding.com project... there only last projects were i take part as project manager.
Smarty 2 yrs 3.0 2006 http://www.iphorum.com
Job Title: Frontend for Free Forums Service

This service allow people register own free forum, get own free 3rd level domain in more then ten available 2d level domains. People allowed use own domain and link it with this freeforum.

Responsibilities: Frontend developer, project manager
TCP/IP 7 yrs 5.0 2007
Video Streaming 2 yrs 3.0 2007 Last Used in WebCam project described above.
XML 5 yrs 3.0 2008
XML-RPC 4 yrs 4.0 2008 I use XMLRPC technology in most projects as good interface between different software.
Certifications
Date Earned Name Score Percentile Organization Description
2006 MySQL,Perl,InternetConcepts [6021662]     BrainBench MySQL 3.23 Administration
 Score: 4.01  Date: 2006-05-31

Internet Concepts
 Score: 4.27  Date: 2006-05-27
Apache 1.3.12 Administration
 Score: 4.27  Date: 2006-05-27
Perl
 Score: 3.83  Date: 2006-05-27
Employment History
From To Company Title/Role Description
01/2000 Present UACODERS Private Enterprise Director / Manager Since January 2000 working in my own Private Enterprise UACODERS Private Enterprise as the General Director and the Software Developer. Programming in C/PHP/Perl and other languages, performing system Integration technical support, task management by concepts. 80% of our tasks is outsourcing.
09/1998 Present Zhitomir state university of technology Senior Educator / Executive Lecturer of System Programming and Operational System Theory
02/1995 08/1999 Military Department, Software Workgroup Software Developer / Executive
11/1993 08/1997 Zhitomir public school #28 Teacher of informatics / Executive
Other Experience
Apache modules
I developed Apache modules in few projects:
mod_video for apache2 (module which can show video stream for multiple clients from /dev/video source)
mod_bandwidth_geoip - patch to existent mod_bandwidth which add GeoIP support and few additional bandwidth manipulation features.
mod_video_stream - module for WebCam which is optional but can take maximum performance for video streaming
mod_layout2 - patch for existent mod_layout to add new features in content manipulations.
BerkeleyDB
We use BerkeleyDB (often with replication) for performance sensitive part of different projects.
For example last used in FreeHosting project as Bind-DLZ database for best performance of DNS.
Genethic Algorithms
I developed core for Multitask Scheduling System based on Genethinc Algorithms.
Proftpd modules
i developed proftpd modules which allow content checking and modification on the fly for freehosting projects.
Education
From To School Degree Area of Study Description
11/1998 03/2001 Zhitomir State Technological University Other Undergraduate education in Zhitomir State Technological University Computer modelling and optimization in scheduling and load balancing in multiprocessor systems
09/1992 06/1997 Zhitomir Institute Engineering and Technology Masters Computer science, mathematical programming, applied programming, networks
No items in portfolio
Hourly Assignment History
Buyer ID From/To Job Title Paid Feedback
43688 07/2008 - Present Perl/PHP developer with software enginering and network skills $10,076 (430 hrs @ $23.46)
16966 05/2008 - 06/2008 Perl OOP Developer $1,562 (87 hrs @ $17.89)
16966 11/2007 - 05/2008 Perl Developer with OOP experiece $12,076 (675 hrs @ $17.89)
21624 10/2007 - 02/2008 PERL WEB DEVELOPER $496 (36 hrs @ $16.44)
Fixed-Price Assignment History
Buyer ID From/To Job Title Paid Feedback
Fixed-Price Assignment History is empty
oDesk Tests Taken
Name of Test Score Percentile Date Taken Duration
Perl 5 Test 4.00 91% TOP 10% 07/16/2007 39 min
oDesk Readiness Test for Independent Contractors and Company Managers 4.40 64% 07/31/2008 17 min