Premium 4-letter domain name ideally suited to software development, potentially combined with quality assurance.
Qdev has only four characters and just one syllable. One-syllable names are exceptionally rare and exceptionally valuable. One syllable names are used by established brands like Shell, Dell and Square.
Qdev.com is a dot com domain. Dot com domains are the most prestigious domain extension in the world, famously used by websites like google.com. Owning a dot com says that you own the word "qdev" online.