Fintech

Secure Blockchain Payment Solutions

Transparency and security at the core of every transaction.

Project overview

Corvx engineered a blockchain-backed payment infrastructure for a fintech company processing cross-border transactions. The platform combines distributed ledger technology for immutable audit trails with AI-driven fraud detection that analyzes thousands of transactions per second, delivering the speed of modern payments with the security and transparency that regulators demand.

About the client

The client is a Series B fintech startup focused on cross-border B2B payments in Southeast Asia. Its existing payment rails were slow, with 3-5 day settlement, limited transaction visibility, and 3-5% fees per transaction. It needed a platform for faster settlement, clearer status, and compliance across multiple jurisdictions.

The challenges

What stood in the way

Multi-Jurisdiction Compliance

Operating across 5 countries meant navigating different regulatory frameworks, KYC/AML requirements, and data residency laws simultaneously. A single compliance failure could shut down operations in an entire market.

Settlement Speed & Cost

Legacy banking rails meant 3-5 day settlement times and fees that made small transactions economically unviable. The client needed sub-minute settlement at a fraction of the cost.

Fraud at Scale

As transaction volumes grew, so did fraud attempts. The existing rule-based detection system was generating too many false positives (18%) while missing sophisticated attack patterns.

Our Solutions

How we solved it

Blockchain Settlement Layer

We implemented a permissioned blockchain (Hyperledger Fabric) for the settlement layer, providing immutable transaction records, real-time auditability, and multi-party consensus. Settlement times dropped from days to under 30 seconds.

AI Fraud Detection Engine

A real-time ML pipeline that analyzes transaction patterns, device fingerprints, and behavioral signals. False positive rates dropped from 18% to 2.3% while catching 99.4% of fraudulent transactions.

Banking Rail Integration

Custom API integrations with 12 banking partners across 5 countries, supporting real-time balance checks, instant disbursement, and automated reconciliation.

The results

The platform processed over $120M in cross-border payments within its first year. Average settlement time dropped from 3-5 days to under 30 seconds, transaction fees decreased by 70%, and the fraud detection system saved an estimated $4.2M in prevented losses.

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Settlement Time (from 3-5 days)

99.4%

Fraud Detection Accuracy

70%

Reduction in Transaction Fees

$4.2M

Fraud Losses Prevented (Year 1)

Technical overview

Built with

Blockchain

Hyperledger Fabric
Smart Contracts (Chaincode)
CouchDB

AI & ML

Python
TensorFlow
Apache Flink
Feature Store

Backend

Go-Lang
gRPC
PostgreSQL
Redis

Infrastructure

AWS (EKS, MSK, SageMaker)
Terraform
Vault (HashiCorp)

Our approach

Security-First, Compliance-Always

Phase 1: Regulatory Mapping

4 weeks

Mapped compliance requirements across all 5 target jurisdictions. Defined the KYC/AML, data residency, and reporting rules that would inform every architectural decision.

Phase 2: Blockchain Core

3 months

Built the permissioned blockchain network, consensus mechanisms, and smart contracts for multi-party settlement.

Phase 3: Fraud & Banking

2 months

Developed the AI fraud detection pipeline and integrated with 12 banking partners. Ran shadow-mode testing against live transaction data.

Phase 4: Production & Scale

3 months

Phased production rollout market-by-market with real-time monitoring, incident response procedures, and regulatory reporting dashboards.

Core capabilities

What we brought to the table

Blockchain Infrastructure

Permissioned distributed ledger for immutable, auditable transaction records.

Fraud Detection

AI-driven anomaly detection with 99.4% accuracy and 2.3% false positive rate.

Banking Integration

Real-time connectivity with 12 banking partners across 5 countries.

The method

Security-First Development

Compliance and audit requirements were part of the design from day one. Threat modeling, penetration testing, and compliance reviews were part of every sprint, rather than a final gate.

Client quotes are published with permission. The project record above is the source for scope, method, and outcomes.

Corvx project record

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Find Corvx online

Mobile App Development

+1 (949) 734-0508

NDD@corvusindustries.com