Things I've built and shipped.
A collection of products and systems I've designed, built, and shipped across fintech, edtech, and infrastructure.
Tiket.com - Accommodation Platform
Rebuilt hotel & homes accommodation pages and post-purchase flows for one of Indonesia's largest OTAs, cutting LCP/CLS under 2s and lifting page performance & SEO scores by 80% while sustaining 90%+ unit test coverage in production.
Next.js
TypeScript
React.js
Node.js+9+8
Prism - AI Trading Chart Assistant
Architected a Chrome Extension AI assistant for real-time trading chart analysis, integrating Claude LLM to deliver 2x faster market analysis. Owned full-stack product engineering — auth, Stripe payments, and PostHog analytics — as lead engineer for a 3-person team, cutting delivery time by 30%.
React.jsTypeScript
Firebase+6+5
Pergi Ceria - Tour, Travel & Event Bookings
Built an end-to-end OTA-style booking platform for tours, travel, and live events (tennis, padel, and more) — from SEO landing pages and search to checkout, spanning both B2C self-service and dashboard-driven manual orders. Engineered RBAC with super-admin approval workflows, a dynamic CMS for content teams, Xendit payment integration, and automated e-ticket/receipt delivery via email, backed by Golang/Gin services and Redis-cached, observability-instrumented infrastructure. Continuously own UI/UX refinement, PageSpeed performance monitoring, and SEO/SEM strategy to drive organic and paid growth.
Next.js
GolangTypeScriptClaude AI+11+10
TokoNeo — Game Voucher Marketplace Engine
Engineered a white-label game voucher marketplace engine now powering 4 live storefronts, integrating third-party provider catalogs across 20+ active games — from landing and SEO pages to a streamlined buy flow where users pick a game, choose a voucher amount, and pay through our in-house payment gateway. Built a dashboard with daily reporting and transaction history, RBAC, and a dynamic CMS for content teams, while sustaining 90%+ unit test coverage (FE & BE), 90+ green PageSpeed scores on mobile & desktop, and full observability across logs, latency, and server health.
LaravelFrankenPHP
Tailwind CSS
Redis+5+4