Let’s build something that matters.

An algorithmic trading system for Binance Futures. It uses a Rust gateway for fast order routing, asynchronous Python services for execution and risk controls, Redis Streams for internal messaging, and PostgreSQL for persistent trade records. Built with boot-time state recovery to rebuild active positions directly from exchange balances on startup.

A video automation pipeline for producing and publishing short-form content. To keep the FastAPI web server responsive, all speech transcription and FFmpeg rendering run in isolated worker processes. It uses Faster-Whisper for dynamic lyric alignment, ONNX neural TTS for voice generation, and adaptive rate-limited queues for platform dispatch.

A fraud detection and risk evaluation service for payment processing. It screens merchant onboarding and evaluates live transactions in under 50ms using Go 1.24. Risk teams can update rules dynamically through GoRules decision tables without redeploying services, while a Transactional Outbox pattern ensures audit logs are reliably saved to PostgreSQL.

An e-commerce and retail platform for camera gear and electronics across online channels and physical stores. It synchronizes inventory with Accurate Online ERP, tracks every item by its hardware serial number, and powers a custom React POS for in-store pickup in under 60 seconds. Also automates warranty policy issuance via Asuransi Sinarmas upon payment confirmation.

A merchant management and settlement platform for QRIS and bill payment processing. It handles multi-tier merchant onboarding, calculates fee splits (MDR), and manages fund disbursements to partner bank accounts. Balance movements are tracked in a double-entry ledger to ensure financial records remain accurate and verifiable before payouts execute.

A customer loyalty and rewards system for hotel and restaurant groups. It manages member points, tier progression, and digital vouchers across multiple physical locations. Built with an immutable double-entry ledger to prevent balance discrepancies, and uses Redis queues to coordinate point redemptions directly with hospitality POS terminals.