I am looking for someone to develop an additional payment gateway option for the wordpress http://eventespresso.com/ plugin.
Specifically to accept payments to a HSBC merchant account.
The EventEspresso team acknowledge that this is possible:
"You can certainly code your own payment gateway. There is some amount of inline notes/comments in the existing gateways which should give you an idea, though there is no official API documentation (yet). Just make sure any gateways and gateway files you build are added to /wp-content/uploads/espresso/gateways/"
Please provide a quote for tackling this job, how many hours you anticipate it taking and an estimated delivery date for the files. Also include any relevant examples of work, credentials or references