PROJECTS

Featured Work

Systems and tools I built to solve real problems — open-source and production-grade.

Resilient Payment Processor

● Production
Source

High-throughput payment processing service handling 10K+ transactions/sec with automatic retry, idempotency, and dead-letter queue support for financial-grade reliability.

JavaSpring BootKafkaRedisPostgreSQL
  • Idempotent API design prevents double-charges
  • Distributed tracing with Zipkin + Sleuth
  • Auto-scaling on AWS ECS with CloudWatch
  • Circuit breaker via Resilience4j
  • 99.99% uptime SLA maintained for 18 months

React Design System

● Active
SourceLive Demo

A battle-tested component library used across 5 internal Wells Fargo applications — accessible, theme-able, and fully typed with comprehensive Storybook documentation.

ReactTypeScriptStorybookViteCSS Modules
  • WCAG 2.1 AA compliant out of the box
  • Dark & light themes via CSS custom properties
  • 40+ components with prop-type documentation
  • 100% TypeScript with generics support
  • Tree-shakeable exports for optimal bundle size

API Rate Limiter Middleware

● Open Source
Source

Express.js middleware implementing token bucket and sliding window algorithms for precise API rate limiting with Redis-backed distributed counters.

Node.jsRedisTypeScriptExpress
  • Token bucket and sliding window algorithms
  • Redis-backed for distributed systems
  • Per-user and per-route granularity
  • Configurable response headers
  • Zero external dependencies beyond Redis client

DevDash — Developer Dashboard

● Personal
SourceLive Demo

A personal developer dashboard aggregating GitHub stats, Jira tickets, Confluence docs, and CI/CD pipeline status in a single unified interface.

Next.jsReactTypeScriptGitHub API
  • Real-time GitHub activity graph
  • Jira sprint board integration
  • CI/CD pipeline status at a glance
  • Customizable widget layout
  • Dark mode with CSS design tokens