A month ago, I started a job at a large, FANG-type company, I guess on the low end of Google T5 or high end of T4? (Salary is around $175k, not including stock options.) Things seem to be going well, but I've been feeling rather useless. I just don't have a lot to do at the moment, and I'm not sure if I should be actively seeking out tasks, proposing new features, or what. (Naturally, I've been spending a lot of time delving into our codebase, but this isn't something with visible results to the rest of the team.) I haven't worked at a big company like this in a long time, so I have no context for how things are supposed to work. Is it expected that tasks take longer than in the solo/startup world? Are engineers on my level supposed to be more proactive with this kind of stuff? I know what's in the pipeline for the next few months—the sorts of tasks that are more my specialty—but we're still scheduling meetings to work out the details. (Mostly it's my manager doing this.) In the meantime, I feel like I'm just idling.

Basically, I have this intense fear that I'm not living up to the expectations of my high salary and that nobody's going to say anything until things get really awkward. I take this home with me every day. My manager hasn't mentioned anything negative in our 1 on 1's, but I don't know if he's expected to.

How are first months supposed to generally go for someone at a big company in my salary range? And if I happened to do things wrong, will I still be able to fix my mistakes?

I'm not lazy; I just have no idea how things work in the corporate world!