It is nice to know that some of these professionals have started identifying themselves as SAP SuccessFactors integration experts. I encourage you to do so if you have done an integration. The demand for such professionals within customer and partner organizations is very high. Even SAP and SuccessFactors professional services teams might be interested in your services.
I also recommend that you get formally trained in Dell Boomi integration middleware technology. Someone with SAP PI and Boomi skills is going to be in demand for the next several years within the SAP SuccessFactors customer community..