Full-Stack Engineer & Builder · Singapore
Left corporate banking because the gap between how systems should serve people and how bureaucracy actually runs them was too frustrating. Went freelance to build software for small businesses — where what you ship actually reaches users and they talk to you directly.
Full-stack generalist. TypeScript-dominant. Runs everything on Railway with Fastify + PostgreSQL. Lays groundwork for sustainable additions so changes stay cheap. Fast feedback loops via PaaS, type safety, good linting, and AI-assisted tooling. Learned the hard way that over-engineering kills projects before they launch.
Self-employed · Dec 2024 – Present
3 paying clients. Delivered a Telegram-based order management system (24–26 daily users, PostgreSQL, role-based access, CRON reports), an AI photobooth for live events, and a restaurant PWA. Sole operator on all systems: CI/CD, monitoring, on-call, infrastructure. All production backends deployed on Railway (Fastify, PostgreSQL, health-checked endpoints, zero-downtime deploys).
OCBC Bank · Apr 2023 – Sep 2024
OpenBanking API development. Owned the partner onboarding pipeline: spec review, implementation, regression testing, production release. Managed change tickets through banking-grade release gates. Zero rollback incidents. Mentored Ignite apprentices on an internal portal (React, Spring).
OCBC Bank · Mar 2022 – Mar 2023
Built a Node.js CLI that parses Postman collections, auto-generates assertion tests, and renders results on a dashboard. Replaced manual QA for the team's API regression suite. Won Rookie of the Year. Taught JavaScript to secondary school students via Code@OCBC.
SG Bike · Nov 2018 – Aug 2020
Shared-mobility startup. Trained 3 interns, wrote the team's first troubleshooting documentation. Reverse-engineered a competitor's lock firmware acquired through M&A (no keys provided) to integrate into fleet operations.
vexora-solution · 2025 · Static site
Company landing website for a consulting business. Astro SSR with Tailwind CSS, Express API backend, Prisma + PostgreSQL. Deployed as a single Railway service.
tekong-seafood-restaurant · 2024 – Present · Production
PWA for a 35-year restaurant in Singapore. Menu digitized from spreadsheets into searchable, mobile-first format. Embedded media (YouTube, TikTok), seasonal promotional banners, Supabase-backed customer data, offline-first service worker.
2026 – Present · Deployed at live events
Replaced manual spreadsheet workflow with a structured order pipeline. Salespersons submit orders via Telegram. PostgreSQL as source of truth. Role-based admin flows, CRON-triggered daily summaries, custom ESLint rules enforcing bot command consistency. Zero data loss since launch. Extended with an AI product catalog intake: upload transcripts and DeepSeek AI structures them into product rows for CSV export.
2025 – Present · Deployed at live events
4-station beauty brand event activation with a retro 90s theme. AI pixel art avatar via Replicate (flux-kontext-pro), Snake game, video stations, QR-code-based navigation, prize claim system. Built as a SvelteKit 5 SPA with Fastify 5 API, Prisma + PostgreSQL, and Redis session cache. Retro Windows 98 UI with 98.css and pink palette. Deployed on Railway. Closest I've been to actual production users — client was happy, event ran live.
Jul 2024 – Jan 2025 · Attempted startup (scrapped)
AI-powered platform for business owners to manage invoices, collections, and payment reconciliation. Built with Temporal.io for durable workflow orchestration, Mastra AI agents for email-based receivables conversations, Xero accounting API integration, Stripe payment processing, oRPC type-safe API contracts, and Azure AD authentication. Monorepo with React 19 + Redux Saga frontend, Fastify + Prisma + PostgreSQL backend, and dedicated Temporal worker service. Over-engineered for the problem and never shipped. A lesson in scoping.
Homelab with multiple machines. Docker, Portainer, Linux systems administration. Railway deployment management. Publishes deployable service templates for Railway (webtop jump server). Router and network device management. Self-hosted VPN server. Cloudflare DNS configuration.
SuperAI Next 2025: full-stack TypeScript submission, 24-hour build. AngelHack 2024: placed 29th of 200 teams (top 15%).