Premium 4-letter domain name ideally suited to software development, potentially combined with quality assurance.
Qdev has only four letters and only one syllable. Single-syllable names are very rare and very prestigious. Established brands using one syllable names include Square, Dell and Path.
Qdev.com is a dot-com domain. Dot com domains are the most valuable top-level-domain in the world, used by famous websites like facebook.com. Once secured, a dot-com all but guarantees no-one else can outrank you for your own name in the long run.