I will integrate Paypal, Payza, Bitcoin payments

My services :
a)
write, debug, speed up and improve any kind of PHP, MySQL, HTML, CSS script, preferring but not limited for e-commerce sites or other online business;
b) integrate, set up and automate Paypal, Payza, Bitcoin payments for your e-commerce sites.
- "Buy-now" / "Subscriptions" buttons;
- IPN (Instant payment notification);
- API's for auto payments sending;
c)
install the scripts on servers;
connect and install the database on servers.