Satisfying enough. Corporate red team at a big tech company, so I spend most days hacking first-party / internally developed software at said big tech company - usually developing exploits / PoC for novel vulnerabilities. But also sometimes longer engagements, including physical / SE at times. My favorite so far has been a long engagement where my team surreptitiously embedded ourselves into a build pipeline for a major tech product that goes out to 40m+ consumers, and added an innocuous flag to the source at build time as proof, starting from a physical break-in scenario without using our badges to enter the building.
The worst part of the job by far is drafting and editing reports. This sometimes goes on for several days.
I like it primarily because I get all the excitement of being a nation-state level adversary / threat actor / "bad guy", with none of the legal/moral/ethical risks/harms - my work ultimately contributes towards making our products (and thus our consumers) safer from such threats.