Vadim K.

Vadim K.

Data Scientist. R Developer. ETL Developer.

Moscow, Russia



What's the difference

I have 2+ years experience in DWH/Databases. ETL: Data Stage, Pentaho, SAS DI, Talend. Databases: Oracle, DB2, GreenPlum, MongoDB.
Small experience in Oracle Transportation Management (OTM) system.

I have 4+ years experience on developing applications using PHP 5, Perl, Python, C++, JavaScript, AJAX. Databases: MySQL, Oracle, Postgresql. Different frameworks: JQuery, Prototype, Code Igniter, Zend Framework. CMS: Prefering working with MODx, Joomla, Wordpress.

Vadim K. has added 11 portfolio pieces. Create an account to review them.

Work History & Feedback

Need an expert WordPress programmer

6 hrs @ $20.00/hr
Earned $120
“Excellent work, right on time! I am looking forward to working with Vadim again.”


Jquery Programmer / MODX cms website implementation

52 hrs @ $16.00/hr
Earned $832
“Vadim was a great programmer from creating the CSS, and had excellent modx skills. Highly recommend!”


small cms website

Fixed Price $224
“This became quite a complicated job where my requirements for it changed very frequently as we got along but Vadim was very flexible with it, he made good suggestions to even improve the site. So very happy with the job delivered.”


Need PHP Website Copies, Pasted, Tested, Tweaked for NEW Site

19 hrs @ $15.56/hr
Earned $298
“Great work on this!!!! Project was done successfully, on time, ahead of time!”


Joomla Web Site Developer

Fixed Price $494
“Vadim did an excellent job on our project. There was nothing we asked that he was not able to do and he even recommended some solutions we hadn't thought of which were better than our initial thinking. He understood and followed our instructions well and in a timely manner. He completed the work on time with regular communication, follow-up and revisions. We're very happy with the results. We will work with him again.”


Fix a Web Page

Fixed Price $17
“Great Provider, highly recommend, will work with again!”


Ongoing R script development (JSON etc)

Fixed Price $150
Job in progress

Tests Taken
Name Percentile Score

CSS 2.0 Test


HTML 4.01 Test


Joomla 1.5 Test


Oracle SQL 9i Test


PHP5 Test


Perl 5 Test


RSS 2.0 Test


XHTML 1.0 Test


XML 1.0 Test