Hi,
I am Sr. Software developer with 11+ years of experience. I have read the description, I am pretty sure that I can do this task.
I have done similar task and had implemented paypal payment ingtegration in php.
I can show you demo if you want. I can custumize as per your requirments.
I look forward to discussing the requirements in detail and rendering my skills to benefit the task.
I am available full time. I can start work with immediate effect.
Thank you so much for your time and consideration.
Regards,
Milan.