Witold Wasiczko
Chief Technology Officer at Fabbler.AI
Wrocław, Lower Silesian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolWitold Wasiczko is a CTO and software architect with 12 years of experience building production-grade systems and leading engineering teams, currently steering technology at Fabbler.ai and formerly at Dali Games. He focuses on high code quality, automated testing, Domain-Driven Design and pragmatic architectures, while actively exploring generative AI applications in gaming. A long-time open-source maintainer and Laminas Technical Steering Committee member, he has contributed to prominent PHP projects like Zend Framework, Doctrine modules, and Rector, often improving type safety and modernizing code for newer PHP versions. Witold pairs hands-on backend expertise—especially around message queues, PSR-7 HTTP tooling, and command buses—with strategic oversight of cross-repository workflows and maintainer governance. Colocated in Wrocław, Poland, he brings a mix of engineering rigor and community stewardship that helps teams ship reliable, maintainable software.
12 years of coding experience
9 years of employment as a software developer
Bachelor's degree, Bachelor's degree at Wyższa Szkoła Informatyki i Zarządzania we Wrocławiu
English
Github Skills (33)
debugging10
debug10
amqp10
testing10
unattended-upgrades10
doctrine10
zend-framework10
rector10
automatic-updates10
object-oriented-programming10
forms10
message-queue10
phpunit10
psr-710
rabbitmq10
Programming languages (10)
Github contributions (5)
doctrine/DoctrineORMModule
Feb 2020 - Jul 2022
Doctrine ORM Module for Laminas
Role in this project:
Back-end Developer
Back-end DeveloperContributions:14 reviews, 13 commits, 5 PRs in 2 years 4 months
Contributions summary:Witold primarily contributed to fixing bugs, improving code quality, and adding support for newer versions of dependencies. They focused on the `DoctrineORMModule` and made changes to various service classes, including `MappingCollectorFactory`, `MigrationsCommandFactory`, and `CliConfigurator`. Their work also involved updating tests and adding support for DBAL v3. They also addressed issues related to type hinting and dependency versions.
doctrine-ormphpdballaminasdoctrine
zendframework/zend-diactoros
Nov 2015 - Jul 2018
PSR-7 HTTP Message implementation
Role in this project:Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:70 commits, 31 PRs, 35 comments in 2 years 8 months
Contributions summary:Witold primarily focused on improving the Zend Diactoros library by simplifying the status code handling within the Response class. They made code changes that included improvements to testing conventions and the addition of PHPdoc. Additionally, the user made changes to ensure the code was in compliance with PHP standards and removed unused constructor parameters and imports. The user also contributed to server-side request creation and improvements to the URI component.
phphttp-messagepsr-7psrmessage
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