Fintech Software development

Payment Force.
Logic scaled.

Power your fintech platform with Zenlor's expert payment gateway integration services. We develop secure, high performance payment processing solutions for the world's leading platforms.

PCI DSS COMPLIANT
SMART ROUTING
100+ CURRENCIES

Why Modern
Payment Systems
are Essential +

High Cart Abandonment

Poor checkout experiences and transaction friction lead to significant lost revenue.

Payment Failure & Decline

Single gateway dependency results in transaction failures from technical or bank issues.

Security & Compliance Risks

Handling sensitive card data without robust PCI compliance leads to vulnerability.

Manual Financial Operations

Inefficient reconciliation and reporting slow down financial growth and transparency.

Why We Stand Out

Fintech Impact at Scale.

Proven experience building secure and scalable payment solutions for global platforms.

Fintech Projects

Secure Payment Solutions Delivered.

0+

Client Satisfaction

Retention & Satisfaction Rate.

0%

MVP Timeline

Weeks to Launch Integration.

0-12

Security Compliance

PCI DSS Ready Architecture.

0%
Capabilities

Fintech Payment Solutions.

Multi Gateway Payment Integration

Integrate multiple payment gateways simultaneously for redundancy, smart routing, and maximum uptime.

+Stripe, Razorpay, PayPal integration
+Intelligent payment routing
+Automatic failover & retry logic
+Unified payment API layer
Redundancy Plan

Custom Payment API Development

Build bespoke payment APIs tailored to your platform's unique transaction and business logic needs.

+RESTful & GraphQL API design
+Webhook event implementation
+Custom tokenization systems
+Payment SDKs for web/mobile
Build Custom API

Recurring Billing & Subscriptions

Implement automated subscription billing with flexible plan management and dunning workflows.

+Automated billing cycles
+Flexible plan management
+Smart dunning (recovery)
+Proration & upgrade logic
Scale Subscriptions

International Payments

Enable global payment acceptance with multi currency support and regional payment integration.

+100+ currency FX handling
+Local methods (UPI, SEPA, iDEAL)
+Cross border compliance
+Multi entity settlements
Expand Globally

Buy Now Pay Later (BNPL)

Integrate leading BNPL providers like Klarna and Affirm to increase order value and conversion.

+Klarna, Affirm, Afterpay sync
+Seamless installment flows
+Real-time risk assessment
+Merchant settlement automation
Add BNPL Flow

Reconciliation & Reporting

Automate financial reconciliation and gain real time visibility into your payment operations.

+Automated transaction sync
+Consolidated reporting
+Chargeback management
+ERP & Accounting integration
Automate Reports

Mobile Payment Solutions

Enable frictionless in app and mobile payment experiences across iOS and Android.

+Apple Pay & Google Pay
+In-app purchase systems
+QR & Contactless support
+Mobile wallet development
Launch Mobile Pay
Engineered Features

Enterprise Payment Architecture.

Autonomous Payment Stack

Optimised data delivery pipeline for absolute logic freedom across research, support, and payment ops.

Zero latency payments

Real-Time Transaction Sync

Consistency across creative sessions with sub-millisecond status validation logic.

Total state view

Global Intelligence engine

Multi-platform, multi-device, and multi-language support built into the secure core.

Worldwide ready

Advanced User Ops

Neural intent ranking and dynamic tool-calling for intuitive, rhythmic control.

Natural CX

Built-in Analytics Lab

Rhythmic outcome tracking, performance heatmaps, and session engagement orchestration.

Response velocity

Omnichannel Pay-Link

Seamless transition from web product cards to secure native spatial experiences.

Unrivaled logic CX

Secure PII Architecture

Privacy-hardened architecture with full data encryption and session audit logs.

Secure scaling
Ecosystem

Universal Connectivity.

Seamlessly bridge your platform with leading global gateways and regional payment networks.

NO. 01

Global Gateways
Stripe, PayPal, Braintree, Adyen, Checkout.com

NO. 02

Regional Payments
Razorpay, PayU, Paytm, Mercado Pago, GrabPay

NO. 03

Banking APIs
Plaid, Yodlee, Open Banking, ACH, SEPA

NO. 04

BNPL & Crypto
Klarna, Affirm, BitPay, Coinbase Commerce

NO. 05

Cloud Native
AWS, Azure, Docker, K8s, Cloudflare

NO. 06

Ecom & Accounting
Shopify, QuickBooks, Xero, SAP, Zoho
Our Development Process

From Idea to Launch - Fast, Scalable & Reliable

A structured SaaS development process focused on product validation, scalability, and performance — built for long-term success.

01

Discover

Assess current payment stack and mapping transaction flows and integration touchpoints.

02

Plan

Strategic gateway selection, MVP scope definition, and security planning.

03

Design

Design high conversion payment UIs and optimized mobile checkout flows.

04

Build

Secure API development with multi-gateway logic and fraud layer implementation.

05

Test

Rigorous sandbox testing and security auditing at transaction scale.

06

Launch

Production gateway activation with live monitoring and staff training.

07

Scale

Continuous performance tuning and infrastructure scaling for growth.

Infrastructure

Enterprise Payment Stack.

Backend Technologies

Node.js
Node.js
Python
Python
Java
Java
Next.js
Next.js

Integration & Checkout

Stripe
Stripe
Braintree
Braintree
Apple Pay
Apple Pay
Google Pay
Google Pay

Mobile Systems

Flutter
Flutter
React Native
React Native
Kotlin
Kotlin
Swift
Swift

Cloud & Security

AWS
AWS
Docker
Docker
Redis
Redis
PostgreSQL
PostgreSQL

Common
Questions.

Book a call

Book a 15-minute call with our fintech experts.

Book a Free Call

Payment gateway integration connects your application to a payment processor that securely authorizes, processes, and settles financial transactions in real time.

Looking to Integrate Payments Without Compromising Security?

Seamless integration with payment providers

Secure transaction processing and encryption

Support for multiple payment methods

Real-time payment status and tracking

Not sure? Just choose the closest option — we’ll guide you.
Next Step

Secure Your Payment Future.

Request a technical audit and build a transaction system that scales.