Jan Prachar
Co-founder & Software Developer at Testomato
Prague, Prague, Czechia
Summary
👤
Senior🎓
Top SchoolJan Prachar is a co-founder and software developer with 15 years of engineering experience and a decade-plus focus on web applications using JavaScript and PHP. He co-founded Testomato, a real-time website monitoring service, and has deep expertise across the JavaScript ecosystem (browser tools, Node.js) as well as contributions to open-source projects like Minicrawler and JSHint. His background blends hands-on systems work—implementing an HTTPS client in C and introducing automated JS testing—with architecture and team leadership from previous roles. Trained as a theoretical physicist, Jan brings strong analytical and logical thinking to solving engineering challenges and a continual appetite for learning new web technologies.
15 years of coding experience
3 years of employment as a software developer
Master, Theoretical Physics, Master, Theoretical Physics at Univerzita Karlova v Praze
English, Czech
Github Skills (78)
parser10
reverse-proxy10
http10
autocomplete10
jshint10
security10
crawler10
encryption10
crypto10
nghttp210
multiplexing10
geolocation10
icu10
quic10
load-balancer10
Programming languages (7)
Github contributions (5)
wikidi/envtesting
Jan 2013 - Aug 2016
Contributions:8 commits, 2 pushes, 2 tags in 3 years 6 months
testomato/minicrawler
Jan 2014 - Aug 2022
Multiplexing web client supporting HTTP/2 and WHATWG URL compliant parser written in C
Contributions:29 releases, 446 commits, 131 pushes in 8 years 7 months
multiplexingparsercrawlerccookie
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