Build Multi-Tenant UPI AutoPay Mandate + Payment Link + Dynamic QR Platform
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Frontier is not the employer and does not collect applications.
About this role
PHP, Website Design, Project Management, MySQL, HTML, PostgreSQL, Web Development, API Development, FinTech, SaaS · We are looking for an experienced FinTech/Payment Integration Developer to build a secure and scalable UPI payment platform with the following core modules: 1. UPI AutoPay Mandate
* UPI AutoPay mandate creation/registration * Mandate authorization flow * Mandate status enquiry * Mandate cancellation/revocation * Mandate lifecycle management * Recurring/debit transaction processing * Pre-debit workflow where applicable * Failed/Pending transaction handling * PSP/Bank API integration * Webhook/callback processing
The integration will be based on APIs/documentation provided by our approved PSP/Bank/Payment Partner.
### 2. UPI Payment Link
* Generate unique payment links through API/Admin Panel * Fixed and configurable payment amount * Order/Customer reference * Link expiry * Payment status tracking * Success/Failure/Pending handling * Mobile-friendly payment page * UPI app/deep-link support where applicable * Webhook notification after payment
Example flow:
Merchant → Create Payment Link → Customer Opens Link → UPI Payment → PSP/Bank → Webhook → Transaction Status Updated
### 3. Dynamic UPI QR Generator
* Generate dynamic UPI QR codes * Unique QR for each transaction/order *