Joseph Bielawski
Senior Software Engineer at Freelance
Łowicz, Łódź Voivodeship, Poland
Summary
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RockstarJoseph Bielawski is a Staff Software Engineer based in Warsaw with 15 years of experience who blends senior engineering leadership with hands-on backend development. Formerly an Engineering Manager and CTO at companies like Aterian and Dimedic and a Staff Engineer at TUI Musement, he continues to lead and ship impactful platform work. A prolific open-source contributor and flow-php core developer, his contributions touch major PHP projects including many Symfony components (http-kernel, web-profiler, form, validator), Composer/Packagist, Twig and Sylius. He has a particular knack for observability and robustness—e.g., implementing method-filtered profiling across SQL, Mongo and file storage, improving profiler tooling, and hardening validators and dependency management. Pragmatic and quality-focused, he pairs architectural thinking with careful refactoring, tests and performance-minded fixes to deliver maintainable production systems.
15 years of coding experience
13 years of employment as a software developer
Stackoverflow
422reputation
25kreached
9answers
0questions
Github Skills (96)
dependency-management10
package-management10
testing10
resourcedictionary10
http10
authentication10
templater10
refactorings10
phpunit10
symfony210
template-tag10
pagination10
symfony-ux10
templatetag10
symfony410
Programming languages (6)
Github contributions (5)
hwi/HWIOAuthBundle
Jun 2012 - Jul 2022
OAuth client integration for Symfony. Supports both OAuth1.0a and OAuth2.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:27 releases, 113 reviews, 842 commits in 10 years 3 months
Contributions summary:Joseph implemented core OAuth client integration features for the Symfony framework. They introduced an OAuthHelper class and Twig extensions, enabling the dynamic setting of login URLs within templates. The user's contributions involved modifications across multiple files, including the creation of helper and extension classes, along with updates to existing controller and configuration files, adding essential functionality to support both OAuth1.0a and OAuth2 protocols. The user also added the ability to manage the token in the response data.
apiphpauthenticationsymfony-bundleoauth1
Sylius/Sylius
Jun 2012 - Nov 2021
Open Source eCommerce Framework on Symfony
Role in this project:Back-end Developer
Back-end DeveloperContributions:73 reviews, 472 commits, 117 PRs in 9 years 6 months
Contributions summary:Joseph contributed to the Sylius e-commerce framework, focusing on the CartBundle. The commits involved refactoring cart functionality to reuse existing code for collection management within the Doctrine2 environment. The changes included modifications to test cases and model classes, with a focus on ensuring the correct behavior of cart items and their quantities. Furthermore, this user refactored the `CartOperator` into event listeners and added new functionality for handling item data.
apisyliusecommercephpheadless-ecommerce
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