I felt that there is a difference between optimizing for job interviews vs learning how to real build products. I need some advice from an experienced hacker. Should I focus on Side Projects or Solving problems on a website like https://hackerRank.com?
What else do you reccomend, what did you do in your case to reach the skill level your at?
I simply can't imagine wasting any amount of time solving "fizzbuzz" or whatever. Never did, never will.
> what did you do in your case to reach the skill level your at?
I worked in that field for over 20 years.