We have a web based epos system which needs integration into the Sentinel system.
This job would best suit someone who has payment integration experience especially with the same platform.
Please explain your experience in your description
I have enclosed the docs
17 freelancers estão ofertando em média $1374 para este trabalho
i have worked 5 years on a web based POS, and integrated the POS with EPX system and Authorize.Net. also worked many times with PayPal, 2CO, moneybookers, Knet for web and mobile native apps.