Earlier quoted context omitted.
5 years at Google is forever, and it's not uncommon at all for people to jump around projects at the company. It's also a full year beyond what's necessary to vest. Really silly way to write that.
European here - what's it mean to vest shares? It sounds like some sort of stock options became unlocked? I haven't heard of this thing before, just of stocks being part of salary for small startups that don't have actual money to pay you (or at least, that's what I've heard warnings for on HN).
Typically there’s also a ‘Cliff’ at the start - a period during which no options are available to you.
addendum: the ‘standard’ Silicon Valley stock option deal is: 4 year vest, 1 year cliff.
Eg: first 12 months, no options
Day 1 of 13th month - 25% of your options are available to you
Then the rest of the 3 years vest at a regular pace with the remaining 75% of your options dropping on a monthly cadence
The exception being Amazon who basically give you nothing for 2 years and then ramp up significantly.