We brought Visual Studio Code into our tools environment alongside IntelliJ IDEA's line up and Visual Studio because some of our customers wanted a free IDE to distribute among their development teams. Since we do a lot of open source development and integration, we now use Visual Studio Code to double check that the code we are communicating with our commercial customers can be processed consistently.
Our core infrastructure as code engine Ansible. Useful for automation and ad hoc tasks. Great to communicate the infrastructure design to new team members.