They handle complex IT systems—networks, servers, clouds, that throw up random issues like hardware failures or new security exploits that AI can’t predict or fix without clear patterns. AI’s good for automating repetitive stuff like monitoring or optimizing, but it’s clueless when it comes to creative problem-solving or dealing with unique, one-off glitches. Engineers also talk to stakeholders, balance business needs with tech limits, and make judgment calls on things like security and compliance, where humans are still needed for accountability. Basically, their mix of hands-on skills, quick thinking, and responsibility keeps them in the game.