FinPay Platform
Enterprise payment processing platform with multi-gateway routing, real-time transaction monitoring, and compliance engine.
active
Overview
FinPay is a production-grade payment processing platform built for high-throughput financial operations. The system handles multi-currency transactions, gateway failover routing, real-time fraud detection, and comprehensive audit trails.
The architecture implements event-driven processing with queue workers handling payment lifecycle events. A dedicated compliance module enforces KYC/AML rules, while the reconciliation engine ensures ledger accuracy across all integrated gateways.
Key engineering challenges included sub-second payment routing decisions, idempotent transaction processing, and real-time balance calculations across multiple currency pairs.
The architecture implements event-driven processing with queue workers handling payment lifecycle events. A dedicated compliance module enforces KYC/AML rules, while the reconciliation engine ensures ledger accuracy across all integrated gateways.
Key engineering challenges included sub-second payment routing decisions, idempotent transaction processing, and real-time balance calculations across multiple currency pairs.
API Throughput
1200 req/s
Database Size
45 GB
Users Supported
50000 users
Avg API Latency
85 ms
STACK
Laravel
PHP
MySQL
Redis
Tailwind CSS
Vue.js
Stripe
Paystack
Flutterwave
Pusher
Laravel Horizon
Laravel Sanctum
Architecture
SERVICES
- Payment Gateway Router
- Transaction Processor
- Compliance Engine
- Notification Service
- Reconciliation Worker
DATA FLOWS
- Payment Initiation → Gateway Selection → Processing → Settlement → Notification
- Webhook Ingestion → Validation → State Machine → Ledger Update
INTEGRATIONS
- Stripe
- Paystack
- Flutterwave
- Bank APIs
- KYC Provider
DATA STORES
- MySQL (Primary)
- Redis (Cache + Queue)
- S3 (Documents)
System Interfaces
No interfaces uploaded for this project.
Technology Stack
LA
Laravel
framework
PH
PHP
language
MY
MySQL
database
RE
Redis
cache
TA
Tailwind CSS
frontend
VU
Vue.js
frontend
ST
Stripe
payment
PA
Paystack
payment
FL
Flutterwave
payment
PU
Pusher
realtime
LA
Laravel Horizon
queue
LA
Laravel Sanctum
auth
Metrics
API Throughput
1200
req/s
Database Size
45
GB
Users Supported
50000
users
Avg API Latency
85
ms
Uptime Target
99.97
%
Payment Gateways
5
Queue Jobs
25000
/day
Auth Model
RBAC
Case Study
Challenge
The client needed a payment platform that could handle 10,000+ daily transactions across multiple payment gateways while maintaining PCI DSS compliance and real-time monitoring.
Solution
Built a Laravel-based payment orchestration platform with:
- Multi-gateway routing with automatic failover and load balancing
- Event-driven architecture using Laravel Horizon for queue processing
- Real-time dashboard with WebSocket updates for transaction monitoring
- Compliance engine with configurable KYC/AML rules
- Idempotent processing preventing duplicate charges
Results
- 99.97% uptime over 12 months
- Sub-200ms average payment processing time
- Zero duplicate transaction incidents
- Successfully processed over 2M transactions
Engineering Notes
Architecture Decisions
- Used State Machine pattern for transaction lifecycle management
- Implemented Saga pattern for distributed transaction handling
- Redis-based rate limiting per merchant and per gateway
- Separate read/write database connections for reporting vs processing
Key Patterns
- Repository Pattern with Eloquent
- Strategy Pattern for gateway selection
- Observer Pattern for transaction events
- Circuit Breaker for gateway health monitoring