Patrick Romowicz
CTO at PATROMO GmbH
Essen, North Rhine-Westphalia, Germany
Summary
👤
Senior🎓
Top SchoolPatrick Romowicz is a hands-on CTO and founder with 13 years of professional experience and a 10.5-year track record scaling a SaaS product from first developer to exit, having built the development team, architecture and Hetzner-based infrastructure that ran up to 50 servers and multiple high-availability clusters. He combines full-stack engineering and operational ownership with leadership as a co-founder and managing director, now applying that blueprint at immocloud and PATROMO. A pragmatic engineer, he has contributed to notable open-source PHP projects like mpdf—improving PDF/A compliance, image handling and test coverage—demonstrating attention to reliability and standards. Based in Essen, Germany, Patrick brings entrepreneurial grit, infrastructure depth and a DIY mindset (he’s a dad and do-it-yourselfer) that keeps him close to both code and product outcomes.
13 years of coding experience
21 years of employment as a software developer
Fachinformatiker in Anwendungsentwicklung
German, English, Polish
Stackoverflow
1,132reputation
93kreached
6answers
1question
pagination
top-1%
php
top-5%
Github Skills (18)
debug10
testing10
pdf10
phpunit10
php10
pagination10
unit-test10
caching9
cachemanager9
html8
utf8
backbonejs6
symfony6
autocomplete6
css6
Programming languages (10)
Github contributions (5)
mpdf/mpdf
Jan 2016 - May 2020
PHP library generating PDF files from UTF-8 encoded HTML
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:1 review, 6 commits, 9 PRs in 4 years 5 months
Contributions summary:Patrick contributed to the PHP library by fixing bugs, adding functionality for PDF/A compliance, and improving code quality. Their work included addressing issues related to image handling, implementing features to specify PDFA versions, and refactoring the caching mechanism for improved performance. The user also wrote tests, including unit tests using PHPUnit, which demonstrates their involvement in ensuring code reliability.
pdfencodedutfcssphp
easybill/sd-agent-plugins
Nov 2017 - Aug 2022
Contributions:6 pushes, 1 branch in 4 years 9 months
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