Projects

Distributed retry system for failed payments using Kafka-based event queuing with per-merchant partition keys, exponential backoff with jitter, and circuit breakers. Handles 2M+ daily retry attempts with 99.1% recovery rate.

Unified GraphQL API layer aggregating 12 microservices into a single schema for merchant storefronts. Adopted by 120k+ merchants with sub-50ms P95 latency at 500k RPM peak load.

Event-driven Kafka pipeline replacing a polling-based worker for 80M+ daily SMS messages. Improved delivery SLA from 94% to 99.7% and cut median latency from 4.2s to 340ms.

Open-source multi-layer caching abstraction for Ruby/Rails with transparent L1/L2 lookups, automatic TTL management, and safe degradation. 1,200+ GitHub stars, 50+ production adopters.

Command-line tool for scaffolding, deploying, and monitoring serverless functions across AWS Lambda and CloudFlare Workers. Built with Go for single-binary distribution.