Security Architecture Overhaul for a B2B Payment Platform
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Problem
The starting point
A fintech startup needed to pass an enterprise security audit before onboarding their first major client. Their codebase had API keys hardcoded in source code, no role-based access, unencrypted sensitive data, and no audit trail.
Solution
What we built
We rebuilt the security layer with AWS Secrets Manager, role-based access control, short-lived JWT tokens with rotating refresh, AES-256 encryption at rest, a tamper-proof audit log, and rate limiting with anomaly detection.
Measurable Impact
What changed after launch
Passed the enterprise security audit with zero critical findings
Secured a $2.4M annual contract with the enterprise client
Zero security incidents recorded in 18 months following the rebuild
Achieved SOC 2 Type I readiness within 4 months
Ready to Build your Fintech Business with secure-software-architecture
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