Hi, I hope you are having a great day. I have successfully completed a number of projects related to yours as I have a professional experience of 7 years in this field and I believe that I can do it according to your requirements. I am a Full- Stack developer and an expert when it comes to ABAP, FIori, Gateway, ABAP on HANA, S4H Cloud Extensibility and Integration between S4H Cloud and external systems with different Authentication mechanisms like OAuth2.0( Ex: Client Credentials, Authorization Code Grant ).