Connect my Website to an FX Exchange back end by extensive API integrations

Most will be revealed in chat. We have a website front end under construction in HTML that needs to be connected to our FX Exchange provider's back end by API's. We have demo versions of our sites (Admin & User portals) here (my sandbox) - https://ausbabymilk.com.au/SWIM/Pay/admin and https://ausbabymilk.com.au/SWIM/Pay/user - not that these are only mock ups, using a template so that the menus work, but all the screens only contain screen shots form our existing demo portal on Currencycloud. We have an agreement with Currencycloud to be an introducer for them and already have our white labelled site ready on their demo platform. However, their OTB Direct platform does nor do everything we need so we have to build our own front end to add additional functionality, not available on their Out of The Box platform. This is a large project, integrating about 170 screens with Currencycloud via API's so only the best API practitioners should apply. Note that on the attached devlopment estimating worksheet only the API part is required for this project. The HTML front end pages are already being built, converted from my Mock Up sites to emulate the real demo portals on Currencycloud - plus add our desired functionality. The customization we require is shown under "Customization" on the API tab of the attached. The second pic shows what the actual demo platform looks like on Currencycloud. Our Mock Up sites are being redeveloped in proper HTML to emulate the full functionality of the Currencycloud platforms. Acess to Currencycloud sandbox and API's will be given to the successful bidder - plus access to the existing Currencycloud demo pltaforms. Currencycloud also offer extensive technical support every step of the way to help developers integrate all the API's.