Karl Horky
Technical Founder, Curriculum Engineer at GitNation Foundation
Amsterdam, North Holland, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolKarl Horky is a technical founder and curriculum engineer with 13 years of professional experience and over a decade mentoring engineers and beginners to build strong mental models and advance careers. He designs full-stack TypeScript/Next.js/PostgreSQL curricula and has built a self-hosted learning management system while running UpLeveled and organizing developer communities like React Amsterdam. A hands-on contributor to major open-source projects—including Next.js, Gatsby, Webpack, and DefinitelyTyped—he improves developer experience through tooling, types, and front-end theming. Based in Amsterdam with a background spanning web, backend, and design, he combines product-minded curriculum design with deep practical skills in ESM, Node.js, and DX. An often-overlooked strength is his focus on technical writing and robust, maintainable developer-facing code that scales across examples, templates and real-world apps.
13 years of coding experience
15 years of employment as a software developer
Web Design and Development with HTML, CSS, JavaScript, PHP and MySQL, Web Design and Development with HTML, CSS, JavaScript, PHP and MySQL at Computer Master Institute of TechnologyNiveau B2.2, Deutsche Sprache, Niveau B2.2, Deutsche Sprache at Universität WienDiploma, Visual Arts, Diploma, Visual Arts at Camosun CollegeProgramming with C++, Web Development with HTML, CSS, PHP, Programming with C++, Web Development with HTML, CSS, PHP at Mount Douglas Secondary
English, German, Dutch
Stackoverflow
4,678reputation
1.7mreached
34answers
4questions
png
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css
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twitter-bootstrap
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internet-explorer
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html
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image
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Github Skills (75)
authorizations10
flow-control10
github10
wordpress-themes10
authentication10
typescript-definitions10
type-definition10
rest-api10
web-development10
emailjs10
javascript10
bootstrap-theme10
bundle10
front-end-development10
wordpress-graphql10
Programming languages (30)
Github contributions (5)
sendwithus/templates
Mar 2014 - Sep 2014
Sendwithus Open Source Email Templates
Role in this project:
Front-end Developer
Front-end DeveloperContributions:150 commits, 4 comments in 5 months
Contributions summary:Karl primarily worked on modifying email templates within the repository, specifically focusing on improving the appearance and responsiveness of the templates. The changes involved adjustments to HTML and CSS code, likely to ensure compatibility across various email clients. The user's contributions appear centered on ensuring the email templates were visually appealing and functioned correctly on different devices.
sendwithusemailemail-templates
keycloak/keycloak-nodejs-admin-client
Sep 2018 - Sep 2020
🔑 NodeJS keycloak admin client
Role in this project:Back-end Developer
Back-end DeveloperContributions:36 commits, 5 PRs, 5 comments in 1 year 11 months
Contributions summary:Karl primarily focused on improving and refactoring the Keycloak admin client for NodeJS. Their contributions included fixing file names and renaming client-related configurations. They also addressed code style issues by updating comments and formatting the codebase. Moreover, the user made important changes to improve code readability by using the more accurate form "credentials" and enabling trailing commas.
authorizationadminkeycloak-rest-apiauthenticationkeycloak
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