Łukasz Rżanek
Mannheim, Baden-Württemberg, Germany
Summary
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RockstarŁukasz Rżanek is a pragmatic software engineer and systems administrator with 16 years' experience building and maintaining backend systems across Java, Python, Perl, PHP and JavaScript. Based in Mannheim, he combines full-stack development skills with deep Unix sysadmin experience on Linux, Solaris and HP-UX, enabling him to bridge application code and production operations. He has contributed notable backend improvements to open-source tooling such as php-reports—adding AdoDB report types, XLS/XLSX exporters and integrations with mail libraries—demonstrating practical expertise in data-driven reporting and database interactions. Comfortable working across legacy and modern stacks, he excels at shipping robust integrations and pragmatic fixes that keep complex systems running.
16 years of coding experience
German, English, Polish
Stackoverflow
5,826reputation
1.2mreached
80answers
3questions
jenkins
top-1%
ajax
top-5%
github
top-5%
java
top-5%
freemarker
top-5%
Github Skills (20)
php10
sql10
jenkins10
web-framework10
freemarker9
web-application9
ajax9
java9
github9
databases9
data-integration9
sql-database9
socket9
powershell6
jenkins-plugin6
Programming languages (17)
Github contributions (5)
jdorn/php-reports
Aug 2013 - Feb 2014
A PHP framework for displaying reports from any data source, including SQL and MongoDB
Role in this project:
Back-end Developer
Back-end DeveloperContributions:87 commits in 6 months
Contributions summary:Łukasz primarily contributed to the back-end functionality of the PHP Reports framework. Their work included modifying the base variable to recognize HTTP protocol usage and addressing issues related to SwiftMailer integration. Additionally, the user implemented initial code for an AdoDB-based report type and created classes for XLSX and XLS report formats, including download buttons. The user demonstrated familiarity with database interactions and report generation within the framework.
data-sourcereportsphpsqlphp-framework
uded/docker-healthcheck-java
May 2018 - Nov 2018
Contributions:2 releases, 13 commits, 8 pushes in 5 months
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