Real-Time Transaction Risk Engine & Immutable Ledger System
A mission-critical financial core handling over 1.2M daily transactions with sub-50ms fraud risk scoring, double-entry ledger immutability, and automated SOC2 Type II compliance auditing.
The Challenge: High Latency & Complex Multi-Currency Balances
The payments provider faced exponential transaction volume growth that strained their monolithic legacy relational database:
- ✕Database lock contention during peak settlement windows causing API timeouts.
- ✕High vulnerability to card-testing fraud attacks and rapid unauthorized chargebacks.
- ✕Complex multi-currency cross-border transactions causing manual month-end reconciliation nightmares.
- ✕Stringent compliance audits requiring cryptographic verification of every ledger entry.
The AeroCodix Solution: Event-Driven Kafka Pipeline & Rust Risk Worker
We decoupled payment authorization from ledger persistence using Apache Kafka event streams, Redis caching for account balances, and an ultra-fast rules evaluation engine.
- ✓Immutable append-only ledger schema based on double-entry accounting standards.
- ✓Sub-50ms rule-based fraud detection scoring velocity, geolocation anomaly, and device fingerprint.
- ✓Automated real-time multi-currency FX settlement with daily central bank rate synchronization.
- ✓Automated audit report generator meeting SOC2 Type II and PCI-DSS Level 1 standards.
Multi-Layer Engineering Breakdown
Event-driven streaming pipeline ensuring strict transactional ordering and linear scale.
1. High-Speed Ingestion Gateway
Validates API signatures and distributes payment requests across redundant Kubernetes pods in under 10ms.
2. Real-Time Risk & Fraud Evaluator
Evaluates transaction risk against 40+ fraud models in <35ms before granting payment authorization.
3. Immutable Double-Entry Ledger
Append-only ledger entries where credits strictly equal debits with cryptographic parent hashing.
Core Engineered Features
Key operational workflows and platform modules designed for zero calculation drift and maximum reliability.
Double-Entry Accounting Core
Guarantees that every penny in circulation is balanced across customer balances and clearing accounts.
Microsecond Fraud Velocity Engine
Detects rapid-fire card testing, unusual geo-velocity hops, and suspicious device ID changes instantly.
Automated Dispute & Chargeback Workflow
End-to-end evidence collection and automated representment document compilation for payment schemes.
Real-Time Financial Dashboard
Executive monitoring showing gross settlement volumes, dispute ratios, and reserve liquidity in real time.
Business Results & Operational ROI
How our production engineering transformed our client's bottom line and operational velocity.
System Uptime (Five Nines)
Maintained continuous payment authorization through high-volume holiday sales with zero downtime.
Reduction in Fraud Losses
Proactively blocked fraudulent card testing and unauthorized transactions before settlement.
Month-End Reconciliation Drift
Eliminated all ledger discrepancies, saving hundreds of hours of manual accounting audits.
Compliance Audit Passed
Achieved international financial compliance certification on the first external audit review.
“AeroCodix engineered our financial core with the precision of an elite quantitative firm. The reliability, speed, and ledger immutability they built allowed us to close our Series A with flying colors.”
Let's Build Something Extraordinary
Tell us about your project roadmap, timeline, or engineering needs. Our technical architects will respond with a tailored proposal within 24 hours.
Our Office
⚡ Guaranteed Response SLA
Every inquiry is reviewed directly by Usman Ali and our Principal Solutions Architects. You will receive an initial technical feasibility response in under 24 business hours.