How can I quickly get up to speed as a Mac-focused systems administrator?

The official Apple IT training material is a good starting point, especially the fundamentals and practice-exam topics. You probably don’t need to memorize every end-user feature; concentrate on deployment, configuration profiles, updates, security, account management, backups, and diagnosing common hardware and software issues. Once you know the company’s MDM and directory setup, that will likely matter more than the specific macOS version.

First find out what “systems administrator” actually covers there. Are you managing Mac endpoints, an Apple-focused identity and infrastructure setup, or mostly supporting Macs connected to Microsoft services? Ask whether they use an MDM platform, who owns it, and whether scripting or automation is part of the role. Some environments are straightforward, while others expect one person to handle everything.

One small terminology note: the current name is macOS, rather than “Mac OSX.” The older Mac OS X name referred to versions before Apple changed its naming scheme. It’s worth confirming which release you’ll be supporting, but the general administration concepts and command-line tools will still transfer well.

Start with Apple’s official Mac and IT administration documentation, then use practical video tutorials to reinforce the basics. Focus on Terminal, Unix-style commands, user and permission management, software installation, troubleshooting, security controls such as Gatekeeper, and device enrollment. If you know Linux, many command-line concepts will feel familiar. Also ask which macOS version they currently support, since the details can vary between releases.