I have gone through your description and got a pretty much idea of what you want. I can assure you that i can do this task...
The skills and resources needed for this project are in my genes. I can assure for a complete professional work in given time line...
i can immediately start working on your project once you allow me..
I have a few questions about your project. Please send me a message so that we can discuss more.
I have 9 yrs of experience in java application development and also experience in payment gateway integration. Recently I have integrated PayPal and spring boot.
Can you provide me details about what payment gateway you want to integrate for better clarity of the requirement?
Please feel to contact me.
Thanks.