Profile image of wbachnik
Flag of Poland Gdansk, Poland
Member since January, 2010
0 Recommendations


I'm a professional programmer with over 10 years of experience in various programming languages and technologies. I graduated from Computer Science progamme at Gdansk University (Poland). I'm the owner of a small consulting company in Poland, WebQA:
$50 USD/hr
19 Reviews
  • 100%Jobs Completed
  • 88%On Budget
  • 86%On Time
  • 36%Repeat Hire Rate

Recent Reviews



Apr 2012

Providing consulting and software development services (Python/Java/SQL).

Senior Software Engineer

Nov 2011 - Oct 2012 (11 months)

Took part in design and implementation of solutions for clients in telecom and medical industry (Java/C#/SQL).

Software Developer

Aug 2006 - Oct 2011 (5 years)

Core developer of Compuware's main product: Central Analysis Server (mainly Java, Groovy, MSSQL Server). Created many tools used daily by other developers (Python, Django). Held Scrum Master role during organization's Agile period.

Software Developer (Intern)

Apr 2006 - Jun 2006 (2 months)

Took part in design and implementation of an EU-financed training management system (J2EE, JSF, PostgreSQL).

Web Developer

Jan 2002 - Apr 2006 (4 years)

Design, implementation and maintenance of a CMS for company's websites. Design and implementation of an online order management and invoicing system (PHP, MySQL, XHTML, LaTex). Design, implementation and maintenance of an online software license management system (PHP, MySQL). Maintenance and improvement of an ad campaign management software (PHP, PostgreSQL).


MSc Computer Science

2002 - 2007 (5 years)


2006 - 2009 (3 years)

Computer Science (Erasmus Exchange Student)

2005 - 2006 (1 year)


M101P MongoDB for Developers (2013)

10Gen, The MongoDB Company

Course covering usage of MongoDB database with Python programming language. I scored 95% on the final test.


2004 on Warsaw Stock Exchange via Zipf Analysis, Scatter and Lag Plots

Analysis of Warsaw Stock Exchange using various graphic and statistical methods.

Quantitive and sociological analysis of blog networks

Analysis of connections in three big Polish blog networks.