Even though I have 10 years of experience writing, shipping, maintaining and operating production systems for 10k RPS scale and also having OSS contributions in some very popular projects, I'm still intimidated by the LeetCode-style problems.
I'm planning to interview for a large company the coming weeks, and I'm truly disappointed that I struggle even on the Easy level. I guess I never needed to solve such issues in my previous jobs (backend, SRE).