I'm Victor Felder and
vhf are the initials I usually use on the Internet.
I'm a university trained computer scientist. As a software engineer, I have been working in the Big Data field for a while before deciding to go back to designing, implementing and scaling web backends.
I spend time contributing to the open-source ecosystem by authoring open-source tools and software, creating open-source projects, writing technical articles, filing issues and fixing bugs in interesting projects.
You can get in touch by writing to
contact@ this domain (
→ my blog where I mostly write about technical things
→ as most bloggers do, I regret not writing more often
→ a collection of free programming books featuring over 180 languages/topics/technologies in over 20 spoken languages
→ also, the third most popular github repository with over 98k stars
→ a list of V8/Crankshaft bailout reasons
→ featuring reproductions, explanations and advices