HKL.

Build log

Real puzzles, useful systems, satisfying payoffs.

Each project started with a stubborn problem and a lot of curious questions. Here are the tricky bits, useful decisions, and lessons that made the build worthwhile.

01Featured

Aegis

A centralized API security platform with a FastAPI control plane, Go reverse proxy, and React dashboard that enforces access policies before traffic reaches backend services.

The fun, tricky parts

  • Separated policy management in the FastAPI control plane from high-performance request enforcement in the Go reverse proxy.
  • Implemented API key and JWT validation, IP blocking, threat detection, credential stripping, and Redis-backed distributed rate limiting.
  • Streamed policy changes over gRPC and surfaced sanitized security events through an RBAC-aware React dashboard.
02Featured

2C2P Wave App

Cross-border remittance infrastructure enabling Myanmar nationals in Thailand to send money instantly to recipients in Myanmar.

The fun, tricky parts

  • Designed secure backend systems and APIs for remittances between Thailand and Myanmar.
  • Supported instant transfers to WavePay wallets and cash access through more than 60,000 Wave agents.
  • Connected cross-border payment flows to multiple recipient channels while preserving reliable transaction behavior.
03Featured

Wave–Yoma Bank Linkage

Integration supporting cash-in and cash-out transactions between Wave’s agent network and Yoma Bank.

The fun, tricky parts

  • Maintained reliable and secure transaction flows across organizational boundaries.
  • Optimized the integration to support scalable cash-in and cash-out operations.
04

Local Bank Integration Services

Backend integration services connecting Wave’s financial platform with local banking partners.

The fun, tricky parts

  • Designed robust over-the-counter cash-in and cash-out workflows.
  • Improved accessibility by connecting partner-bank services with Wave transaction channels.