Pros
I have been working at Sharecare full-time (More than 4 years) Sharecare continues to function in startup mode even as the company has grown the staff greatly via newhires and acquistions. Due to the startup and acquisition mentality, there is ample opportunity to learn more and do more with new technologies as well as solve problems that occur with acquired or older technologies. Therefore if you like to solve technical problems, you will love working at Sharecare. Overall, the culture is one of being hands on and teams-oriented. Management gives freedom to the employee to solve issues, and teams work well with each other to deliver good solutions.
Cons
This could be a pro or con depending on how you look at it, but there seems to be always be more work than people able to do the work. That is expected for a company experiencing the growth that Sharecare currently is experiencing.