I spent several years on creating and leading a software quality assurance department, and later a technology department in a major German Internet company. Prior to that I worked a year as a Ruby on Rails developer and six years as a C++ developer, the latter in the finance industry.
At work, I use a Macbook Pro (Retina, 13", 512GB SSD, 16GB RAM, early 2015). At home, a Macbook Pro (Retina, 256GB SSD, 8GB, Mid 2012) and a self-assembled PC with openSUSE Tumbleweed. A QNAP NAS provides for backups and other internal services.
On the software side, it is iTerm2/bash/tmux/vim (see the dotfiles).