I'd say the best way to have a great career is to choose a job where you get to be with other people you really like, respect, and can learn from. This network

I'd say the best way to have a great career is to choose a job where you get to be with other people you really like, respect, and can learn from. This network is how you'll find the best new opportunities in the future, and where you'll be able to recruit people into whatever you're working on. Optimize for having the best coworkers (and manager) you can find. You can never start too soon.