Fintech & Payment Infrastructure
Payment Rails, Digital Wallets & Reconciliation Engines
Build payment gateways, digital wallets, payout systems, reconciliation engines, and transaction ledgers with bank-grade security and PCI-DSS architecture. We've processed millions of dollars in transaction volume with zero reconciliation failures.
Start with a Free Consultation
Tell us your requirements. A Senior Architect will respond within 24 hours.
Book Free Session →Is This You?
Common challenges our clients face before working with us.
- ⚠️
Payment processing is your core business but you're relying on a third-party SaaS that limits your margins and control
- ⚠️
Your reconciliation process takes 2+ days of manual work per week
- ⚠️
You need to support multiple payment methods, currencies, or payout destinations
- ⚠️
Compliance requirements (PCI-DSS, SOC2, AML) are blocking your expansion
How We Deliver
A structured, milestone-based process with full transparency at every step.
Compliance & Architecture Planning
We define the compliance scope (PCI-DSS, SOC2, AML), choose the right payment processor(s), and design the security architecture before any development begins.
Core Ledger Development
Build the double-entry ledger, idempotency layer, and transaction state machine that ensures every dollar is accounted for, always.
Payment Gateway Integration
Integrate with Stripe, Plaid, PayPal, Razorpay, or custom banking APIs — with webhook handling, retry logic, and failure recovery.
Reconciliation Engine
Automated reconciliation pipelines that match internal ledger records against bank statements and payment processor reports daily.
Security Audit & PCI Compliance
Third-party security audit, penetration testing, and PCI-DSS compliance documentation before production launch.
Technology Stack
Best-in-class tools and frameworks, chosen for your specific requirements.
What You Can Expect
Tangible, measurable outcomes from working with CSG Technosol on this service.
Zero reconciliation errors — automated daily reconciliation with exception alerts
PCI-DSS compliant architecture from the first commit
99.99% transaction processing uptime with circuit breakers and retry logic
Multi-currency and multi-method support from a single unified API
Complete audit trail for every transaction state change
Frequently Asked Questions
Do I need PCI-DSS certification to use your platform?
We design all fintech systems to be PCI-DSS compliant by default. If you need formal certification, we guide you through the SAQ-D or QSA audit process as part of the project.
Can you integrate with our existing banking relationship?
Yes. We've integrated with bank APIs from Wells Fargo, JP Morgan, HDFC, ICICI, and various treasury management APIs. We assess each integration during the scoping phase.
How do you handle failed transactions and edge cases?
Every transaction goes through a state machine with defined failure paths. Failed transactions are queued for automated retry with exponential backoff, and exceptions are flagged for human review.
Ready to Build Your Fintech & Payment Infrastructure Solution?
Book a free 45-minute discovery session. A Senior Architect will review your requirements and propose a concrete technical roadmap — at no cost.