Sebastiaan Kloos
Development Manager at Nationale Postcode Loterij
Amsterdam, North Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolSebastiaan Kloos is a development manager and seasoned technology leader with 10+ years of experience architecting and delivering large-scale web and microservice platforms, currently leading the entire development domain for De Nationale Postcode Loterij and VriendenLoterij. He blends hands-on Java and full‑stack expertise with strategic responsibilities across architecture, business analysis and delivery for roughly 120 engineers across 10 scrum teams. A background in physics (TU/e) underpins his analytical approach to building resilient REST/JMS microservices and measurable digital experiences using web analytics and SE advertising insights. Sebastiaan is also an active open-source contributor, notable for localizing and improving the Filament admin panel for Laravel, reflecting his attention to UX details and internationalization. Colleagues know him for translating complex requirements into pragmatic architecture while keeping a product- and data-driven focus.
10 years of coding experience
24 years of employment as a software developer
Ing / Bachelor of Science, Applied Physics, Ing / Bachelor of Science, Applied Physics at Fontys University of Applied SciencesIr / Master of Science, Physics, Ir / Master of Science, Physics at Technische Universiteit Eindhoven
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (12)
php10
localization10
internationalization10
laravel10
laravel-mix10
tailwindcss9
forms8
alpinejs8
ui-design7
front-end-development7
admin7
uid7
Programming languages (11)
Github contributions (5)
filamentphp/filament
Dec 2021 - Oct 2022
A collection of beautiful full-stack components for Laravel. The perfect starting point for your next app. Using Livewire, Alpine.js and Tailwind CSS.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:2 reviews, 10 commits, 12 PRs in 9 months
Contributions summary:Sebastiaan primarily contributed to the localization and internationalization of the Filament admin panel, translating various UI components and messages into Dutch. They also made minor UI improvements, such as adding branding to the login page and including the option to add an image as an icon. Further contributions include the addition of a repeater item label option and improvements to the pagination component.
cmsfor-humanstall-stackadmin-panelform-builder
codecyclernl/laravel-cms
Jan 2022 - Jul 2022
CMS for Laravel in combination with Filament
Contributions:18 commits, 13 pushes in 6 months
cmscombinationphpfilamentlaravel
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