Kilian Valkhof
Founder at Polypane
Amsterdam, North Holland, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolKilian Valkhof is a founder and product-focused engineer with 17 years of experience building developer tools and delightful web experiences from Amsterdam. He leads Polypane, a purpose-built browser that speeds up responsive, accessible and performant web development, and Firstversionist, which ships productivity software for designers and web workers. Kilian combines hands-on front-end and interaction design roots with product strategy—having started an agency in 2005 and spoken at conferences like QCon and WebDirections. He also creates practical open-source utilities such as an f.lux indicator applet, demonstrating a preference for useful, well-crafted developer tooling. His background in graphic media technology and startup training informs a design-led engineering approach that favors measurable time-savings for teams. Colleagues describe him as an entrepreneurial maker who turns developer pain points into polished, standalone products.
17 years of coding experience
1 year of employment as a software developer
Graduated Startups, Graduated Startups at Startup School OnlineBachelor of ICT / Ing. Graphic Media Technology, Bachelor of ICT / Ing. Graphic Media Technology at Rotterdam University of Applied SciencesVWO Natuur en Techniek, VWO Natuur en Techniek at Alfrink College
javascript
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (6)
gtk10
python10
subprocess8
ui-design7
graphical-user-interface7
user-interface7
Programming languages (24)
Github contributions (5)
Kilian/f.lux-indicator-applet
Jun 2010 - Apr 2016
This repository is unmaintained. Visit:
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:124 commits, 1 PR, 2 pushes in 5 years 10 months
Contributions summary:Kilian primarily worked on developing a f.lux indicator applet, contributing to the core functionality and user interface. They implemented the initial theme support and basic starting/stopping mechanisms for the applet. The user also set up the `setup.py` file, desktop files, and autostart functionality for the application. Furthermore, they added the preferences pane using Glade.
visit
Kilian/react-bytesize-icons
Jun 2017 - Jun 2021
Bytesize Icons as React Components.
Contributions:39 commits, 11 PRs, 28 pushes in 4 years
reactbytesizesvgfeather-iconsbytesize-icons
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