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Full-StackAether Financial Technologies • 5 Months (2025)
Aether Global Payment API & Merchant Portal
PCI-DSS compliant payment processing dashboard with instant payout analytics and fraud detection rules engine.
The Engineering Challenge
Handling distributed idempotency locks during network timeouts while delivering sub-second merchant reporting across millions of ledger entries.
The Architectural Solution
Designed a Redis distributed locking strategy combined with PostgreSQL partition tables for monthly ledger records.
Key Architectural Decisions
Distributed double-entry bookkeeping ledger with strict database constraint checks.
Edge-based JWT verification using `jose` library preventing unauthorized database hits.
Automated webhooks retry engine with exponential backoff and dead-letter queues.
Zod schema validation ensuring zero malformed payloads reach core financial handlers.
Figma Design Spec vs. Live Rendered Code
Live Next.js Output
Figma Spec Canvas
Quantifiable Metrics & Impact
$12M+
Total payment volume processed during initial merchant beta launch.
99.999%
Verified uptime SLA maintained across all primary processing regions.
<10ms
API response latency for edge token validation checks.
Technology Stack & Bundle Footprint
Node.js & Express
PostgreSQL & Redis
Jose & JWT
Zod