Oliver Kossin
Symfony Developer at denkwerk GmbH
Cologne, North Rhine-Westphalia, Germany
Summary
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RockstarOliver Kossin is a Symfony developer based in Cologne with nine years of hands-on web development experience across agency and product-focused teams. He has steadily progressed through roles at brandung, QOSSMIC (formerly SensioLabs Deutschland), MASSIVE ART, and now denkwerk, building robust Symfony applications and client-facing web solutions. Comfortable across the full web stack, Oliver brings practical expertise in PHP/Symfony best practices, long-term maintenance, and integrating projects into production workflows. His background in agencies means he pairs technical craftsmanship with an eye for user-focused delivery and iterative improvements. Outside of work he’s an open-source enthusiast, reflecting a commitment to community-driven tooling and continuous learning.
8 years of coding experience
4 years of employment as a software developer
Github Skills (41)
admin10
sulu10
bundle10
php10
symfony10
localized10
login-system9
web-application9
cms9
symfony-bundle9
user-management9
documentation9
cockpit8
php-framework8
content-management8
Programming languages (4)
Github contributions (5)
TheCadien/sylius-sulu-demo
Apr 2021 - Nov 2023
Contributions:1 PR, 2 pushes, 1 branch in 2 years 6 months
TheCadien/SuluHeadlessBundle
Aug 2020 - Jun 2024
Bundle that provides controllers and services for using Sulu as headless content management system
Contributions:27 pushes, 4 branches, 2 tags in 3 years 10 months
cmsmanagement-systemcontrollersbundlephp
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