My Work
Production systems, fintech infrastructure, and trading platforms I've built and owned.
Featured Projects
Silverhands
Microjob marketplace platform, freelancer-style, focused on small tasks. Built in Go with Gin and JSON-RPC architecture for strongly-typed service contracts, backed by PostgreSQL for transactional consistency and Redis for caching and queue coordination. Integrated Singapore's Singpass/Myinfo under the FAPI 2.0 security profile (PAR and DPoP), enabling onboarding with government-verified identity data.
Opulous
Music fintech platform with cross-chain fund transfers across 5 EVM networks with different finality guarantees. Designed transfer architecture using Wormhole messaging and Circle CCTP burn-and-mint for native USDC, with recovery paths for failed transfers. Reduced RPC latency by ~70% through parallel execution and connection pooling, and designed an event-driven distributed queue with idempotent processing.
Booster
Real-time trading platform with atomic transactions and zero-downtime deployments. Identified direct RPC calls as a cost bottleneck for blockchain indexing, replaced with Aptos Processor, reducing costs by 100x+. Tackled leaderboard latency by building real-time ranking system with BullMQ, PostgreSQL, and Redis caching.
All Projects
NFT Springboard
AI content platform addressing single-provider failure risk by architecting multi-provider AI pipeline with circuit-breaker failover across Gemini and Flux. Resolved data consistency gaps by implementing event-driven sync with BullMQ workers updating MongoDB in near real-time.
Campaign.com Platform
Campaign management platform backend serving 10,000+ monthly active users. Beyond query tuning, focused on the deployment surface: GCP Cloud Run + Cloud SQL with automated CI/CD pipelines for safe, repeatable releases.
Live Sports Score App
Early-career WebSocket system handling live sports scoring. Built reconnection resilience and Redis-backed broadcast fan-out to absorb traffic spikes when users reconnected after goals. These patterns still inform how I design real-time systems today.
Vending Machine Payment System
Early-career IoT payment processing system for vending machines. First production system where I worked with exactly-once delivery, idempotency, and event sourcing on Kafka. These foundational patterns later shaped the distributed queue design at Opulous.
Need a backend built?
From cross-chain fintech to real-time trading platforms, I build backend systems that scale. Let's discuss your project.