- DNS
- Infrastructure (Servers, VMs)
- Cloud hosted servers/services (AWS, Azure, Rackspace, Apigee)
- OS (Windows, Linux, Mac)
- Shell scripting (Bash, Powershell, DOS)
- Containers (Docker)
- Web Servers (IIS, Apache)
- Databases (SQL Server, MySQL)
- Server-side code (PHP, Node.js ASP.Net/Core)
- Client-side code (HTML, CSS, Javascript, jQuery, AJAX)
- Design (Photoshop, GIMP)
- CMS (WordPress, Umbraco, Teamsite, Sitecore)
- Source control (Git, SVN)