2025 · Payments & fintech

Multi-tenant payment gateway service

A payment API integrating a bank gateway with encrypted payloads, queue-based processing, reconciliation exports and per-tenant isolation.

Year
2025
Industry
Payments & fintech
Platform
Back end & API
Client region
India
Status
Delivered to client
Payment Gateway Service
Payment Gateway Service illustrative interfaceIllustrative UI

Illustrative interface showing the type of product built; client screens are confidential.

The brief

What the client needed

Several businesses needed to accept payments through one bank gateway without ever seeing each other's data, and finance teams needed every transaction to reconcile.

What we delivered

Shipped to the client

  • Bank gateway integration with encrypted request and response payloads
  • Queue-based processing with retries
  • Webhook verification and idempotent order updates
  • Reconciliation exports for finance
  • Per-tenant keys, data isolation and audit logs

Key features

Multi-tenant

Isolated keys, data and settings per business.

Reliable

Queues and retries so no payment is lost.

Reconciliation

Exports that match bank settlements.

Technology

  • Node.js
  • PostgreSQL
  • BullMQ
  • HDFC SmartGateway
  • Razorpay

Next step

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