I am considered a senior engineer in my specialization and I still Google a lot of things.

There are still many things that I don't know, some things on the tip of my tongue that I almost remember and some things I use once or twice a year and forget in the meantime.

However, the more I mature as a developer, the faster I can detect horrible StackOverflow answers which technically answer the question but cause a couple of more or less sneaky issues.