repeated references to Accenture may not be entirely accidental nor completely objective, if you want to see more examples try the SAP Store.
Of course if you are looking for advise in this area you are more then welcome to contact me, ROItech is an SAP integration partner dealing with all things SAP Fiori related and SuccessFactors extensions ( or should I now say User Exits ) are in our scope since Fiori now powers the UI behind SuccessFactors :
Further references :
Cloud Applications Cloud Applications based on SAP HANA Cloud Platform and SAP HANA Cloud Integration
SAP Store | Buy SAP Software online
SAP HANA Cloud Platform, starter edition | Information Technology | Lines of Business | SAP Store