You talk about the development team that they are hiding their faces. You tell me how long have you been walking on the forum? In 95% of all bounty companies one and the same model. All developers only show links to LinkedIn profiles. Other information you will not get. On the one hand, this is correct, each person has his own personal life in other social networks. If necessary, you can take and find in Facebook by name. You did not think about it. There are a lot of opportunities in the network, so if the company is real and really exists, it will not be difficult to find each team member.