Full-Stack Engineer & Builder · Singapore
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Full-stack engineer. 4 production systems across AI, commerce, and enterprise banking. Sole operator on all deployed systems: deployment, monitoring, incident response. No ops team. TypeScript-dominant. Open-source tooling. Scope limited to what's needed; cost kept low.
Currently freelancing for 3 paying SMB clients. Built an LLM agent that takes print orders through Telegram (Mastra AI, tool-calling, persistent memory). Built a sales order pipeline for a 24-user distribution team (grammY, PostgreSQL, automated reporting). Built a computer-vision photobooth deployed at live events (Stable Diffusion, InsightFace, Vue 3). Built a PWA for a heritage restaurant (React, Supabase, service worker). Previously spent 18 months at OCBC Bank on OpenBanking APIs.
AI tooling reduced the cost of custom software. One engineer now delivers what previously required a team. Small businesses lack access to purpose-built software because existing solutions are too expensive or too generic. He builds in that gap. Focuses on keeping deployed products operational over starting new ones.
JustifyPrint · May 2025 – Present
Print shop with no prior tech infrastructure. Built an LLM-powered Telegram bot (Mastra AI, tool-calling agents) that handles product inquiries, calculates pricing, and captures orders. Also rebuilt the company website with analytics tracking.
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.
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.
SuperAI · Jun 2025 | AngelHack · May 2024
SuperAI Next 2025: full-stack TypeScript submission, 24-hour build. AngelHack 2024: placed 29th of 200 teams (top 15%).
Singapore Developer Community · Active Contributor
Contributor to Singapore's developer event aggregation platform.
GitHub · Ongoing
MCP servers (wayland-mcp for AI desktop automation, in active development). 26 original repos, 1300+ contributions. TypeScript project templates and developer utilities.
Justifyprint · 2025 – Present · Production
Tool-calling LLM agent that sells printing services through Telegram. Queries live product catalogs, calculates pricing with paper/size multipliers, saves order drafts, processes confirmations. Runs 24/7. Conversation memory with token-aware context management.
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.
uncle-james-giam · 2025 – Present · Production (24–26 daily users)
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.
client-kendrick · 2026 – Present · Deployed at live events
Kiosk-based AI portrait generator. Three-service architecture: Vue 3 touch-screen frontend, Fastify session API with PostgreSQL, Python FastAPI service running IP-Adapter-FaceID-PlusV2 on CUDA (InsightFace face embedding + Stable Diffusion 1.5). User selects gender and hairstyle; pipeline generates stylized portrait. Dockerized for portable deployment to any venue with a GPU.
Homelab with multiple machines. Docker, Portainer, Linux systems administration. Router and network device management. Self-hosted VPN server. Cloudflare DNS configuration.
GitHub Copilot for issue management and multi-agent workflow orchestration. Automates repetitive development tasks across repositories.