Piotr Zając
Właściciel at By Domain
Rzeszotary, Lower Silesian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolPiotr Zając is a seasoned PHP software engineer and founder with 11 years of experience building and improving web platforms and payment systems. He has progressed from hands-on PHP development to leading teams and improving delivery practices—introducing Scrum, CI/CD, Docker, GitFlow, code reviews, and test-driven approaches across payments and e-commerce stacks. As Head of Development and later IT Manager, he combined technical delivery with process design, DevOps automation and event-storming-driven requirements work, helping teams adopt DDD and higher code quality. Now running his own company, he brings pragmatic problem-solving—“suggest solutions instead of using lame excuses”—and a bias for actionable improvements. Based in Lower Silesia, Poland, he balances a strong engineering pedigree from AGH with a family-first mindset as a proud father of three.
11 years of coding experience
4 years of employment as a software developer
Domain Driversinżynier, Oprogramowanie i Bazy Danych, inżynier, Oprogramowanie i Bazy Danych at AGH University of Krakow
English
Stackoverflow
28reputation
1kreached
4answers
3questions
Github Skills (149)
messaging10
bash10
jwt-authentication10
jose10
cqrs10
bundle10
rabbitmq10
php-framework10
dbal10
doctrine-orm10
jwk10
wamp10
shell10
cli10
php-amqplib10
Programming languages (6)
Github contributions (5)
unixslayer/event-sourcing
May 2020 - Aug 2021
Contributions:5 releases, 19 commits, 22 pushes in 1 year 3 months
unixslayer/prooph-event-store
May 2020 - Apr 2025
PHP 7.4 EventStore Implementation
Contributions:31 pushes, 7 branches in 4 years 11 months
eventstoreevent-sourcingphpcqrsevent-store
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