PHP payment gateway - large project, several developers needed

This project received 28 bids from talented freelancers with an average bid price of $18 USD / hour.

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I have a potentially large pipeline of PHP work I hope to win from a large international customer
investing in a bold new venture, integrating a PHP payment gateway into various payment backends.

It could be months of work for several (up to 10) developers to work directly with me through freelancer on behalf of my client.

People with experience of online payments will have a major advantage, but this is not absolutely necessary.


We have a working PCI DSS gateway only for credit cards, written in PHP.

We need to integrate a few (minimum 3) banks and then a few ewallets (similar to paypal but not paypal), maybe 5. Also Envoy, which is a “gateway” for 40+ payment methods – which brings together one API over these methods.

We need to build reporting and reconciliation systems, alerting system, fraud system, payouts, blacklisting… which is basically many more backend tables and say 10 more user interfaces.

Once done, we should also make our own payment page (with API of course).
Next… more banks, ewallets and payment pages.

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