Hello, There
I have just gone through the project description of need to intigrate CBK payment getway on your app, you can check my portfolio, I made many Flutter mobile Applications based on API and intigrated with many payment getway method.
I am sure that I can integrated the CBK payment getway on your app.
Happy to start now.
Feel free to ask me if you have any questions.
Regards,
Abdalmohsen