FinTech & Payment Engineering

PayPulse FinTech Core

Engineering a PCI-DSS Level 1 compliant payment gateway and double-entry ledger platform processing over $120M+ in annual transaction volume with 99.999% high-availability uptime.

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PCI-DSS Level 1 Compliant

$120M+ Annual Volume

99.999% Five-Nines Uptime

PCI-DSS Encrypted Vault PayPulse FinTech Platform

The Challenge

Handling Peak Payment Surges & Fraud Security

PayPulse needed to re-engineer their legacy payment switch to handle Black Friday transaction spikes, prevent double-charge race conditions, and achieve strict PCI-DSS audit compliance.

Database Lockouts: Race conditions during concurrent payment authorizations.
Fraud Risks: High fraudulent chargeback rate on international credit cards.
Reconciliation Delay: End-of-day bank settlement reconciliation taking 8+ hours.

The Solution

Go Microservices & Double-Entry Ledger Engine

Rudracore designed a high-throughput Golang payment switch with immutable double-entry ledger architecture, automated ML fraud scoring, and tokenized PCI Vault storage.

Immutable Ledger Architecture: Zero-discrepancy financial accounting with idempotent transactions.
AI Fraud Scoring: Real-time risk assessment reducing chargebacks by 85%.
PCI Tokenization Vault: AES-256 cardholder data isolation exceeding PCI-DSS Standards.

Business Impact

Measurable Results Delivered

Key platform metrics achieved post-migration.

$120M+

Annual Volume Processed

Seamless transaction processing for high-volume enterprise merchants.

99.999%

Five-Nines Uptime SLA

Zero unplanned payment switch outages across 12 consecutive months.

-85%

Fraud Chargebacks

AI risk scoring blocked fraudulent transactions before authorization.

<40ms

Auth Response Time

Lightning-fast card authorization speeds across international acquiring banks.

Client Endorsement

"PayPulse needed banking-grade security and sub-second payment routing. Rudracore built a fault-tolerant Go microservices platform that handles $120M+ in volume with 99.999% uptime."

Jonathan Vance

CTO, PayPulse Financial