Kristóf Csillag
Founder, Software Engineer at Nolmecolindor Informatics Ltd.
Hungary
Summary
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Rockstar🎓
Top SchoolKristóf Csillag is a founder and senior software engineer with 13+ years of professional experience and a programming journey that began in 1992 at age 10. He builds full‑stack web applications and architected large Java/GWT systems as well as modern JS/TypeScript stacks, combining hands‑on development with operations experience—he’s administered Linux servers and network services for over 15 years. An active open‑source contributor, Kristóf has improved the Hypothes.is annotation client and browser extensions, enhancing PDF integration, Markdown support and UX edge cases. He favors projects at the intersection of AI and human-centered tech—knowledge representation, inference engines and neural systems—and enjoys designing elegant internal structures that actually help users. Pragmatic and curious, he moves comfortably between low‑level languages (C, ASM) and high‑level web platforms, bringing breadth and depth to product and research-grade engineering.
13 years of coding experience
17 years of employment as a software developer
Karacs Ferenc GimnáziumMSc, Computer Engineering, MSc, Computer Engineering at Budapest University of Technology and Economics
English, Hungarian
Stackoverflow
1reputation
388reached
0answers
1question
Github Skills (21)
markdown10
javascript10
coffeescript10
handlebars10
annotations10
browser-extension10
css10
pdfjs10
chrome-extension10
annotation-processing10
markdown-it10
html10
opera-extension10
webextension10
xpath10
Programming languages (16)
Github contributions (5)
hypothesis/client
Nov 2012 - Apr 2015
The Hypothesis web-based annotation client.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:500 commits in 2 years 5 months
Contributions summary:Kristóf made several significant front-end improvements to the Hypothesis web annotation client. They implemented the ability to make URLs within annotation bodies clickable, requiring modifications to the Handlebars templates and the introduction of manual HTML escaping. They fixed a bug by ensuring links opened in a new tab instead of an iframe and added initial support for Markdown formatting. This work demonstrates a focus on enhancing the user experience and extending the capabilities of the annotation client.
javascriptweb-basedannotationfrontend
hypothesis/browser-extension
May 2013 - Dec 2014
The Hypothesis browser extensions.
Role in this project:Front-end Developer
Front-end DeveloperContributions:19 commits in 1 year 7 months
Contributions summary:Kristóf focused on enhancing the Hypothesis browser extension, particularly its integration with PDF.js for handling PDF documents. Their contributions included modifying the extension's code injection logic to improve performance and reliability, especially for PDF pages. They also updated the embedded PDF.js library and addressed issues related to file access permissions, ensuring the extension functioned correctly with local PDF files. Additionally, the user added debugging information and made minor code adjustments.
firefoxbrowserjavascriptwebextensionchrome
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