Contact person: Business Client

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Location: Riyadh, Saudi Arabia

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"I need a developer who can wire my existing Point-of-Sale application into the Saudi ZATCA Fatoora platform so every transaction leaves the store already compliant. The core scope is straightforward: create a clean, reliable integration layer (preferably in .NET, as the POS is .NET-based) that pushes each sale to ZATCA’s e-invoicing endpoints and returns whatever acknowledgements or reference numbers the authority provides.

You will handle all authentication, request/response handling, and error logging inside the POS workflow, exposing only the minimum UI changes my cashiers need. Documentation, source code, and a short deployment guide are the deliverables; once they are in place I should be able to compile and run the POS, ring up a sale, and see the invoice registered in the Fatoora portal without manual steps.

If you have already connected a POS or ERP to ZATCA before, let me know—speed and proven compliance will be decisive." (client-provided description)