Profile: Master's @Top 5 CS University | 1.5 years of Experience

Compensation (non-negotiable):
Base: 129,000 USD
Sign-on: 50,000 USD
Relocation: 10,000 USD
Stocks: 150,000 USD over 4 years
Bonus: 10% if met expectations can be anything according to your performance.
Stock refreshers every year.
In addition to all the standard benefits!

Prep: Just do the top 100 Facebook tagged questions according to frequency and you will be fine to do.
Interviews: 3 Technical rounds (because had 1 follow-up round) and 1 behavioral.

PS: If anyone was successful negotiating please let me know.