$ whoami

jia yi ooi.

Senior full-stack engineer. Real-time systems, builder of unglamorous plumbing that holds up under load.

location George Town, Penang timezone UTC+8 (MYT) status ● open to chat

I work across TypeScript & React on one side and Python (FastAPI) or Elixir on the other. Most recently I shipped real-time messaging features at uchat. These days I’m focused on harness engineering — the tooling that wraps LLMs into useful agents (orchestration, tools, context, evals). On the side I’m porting a TypeScript terminal UI library to Elixir — elixir-opentui.

book a 15-min chat cat resume.pdf mail me@jyooi.com

$ ls -la ~/experience 5 entries · sorted by recent

────────────────────────────────────────────────────────────────────────────────

Nov 2024 → Apr 2026

uchat Senior Software Engineer — Business unit Remote, Singapore

Built real-time messaging features for the business inbox at business.uchat.social — the official-account side of a consumer messaging app in Thailand. Full-stack across a React + TypeScript frontend and a FastAPI backend on Kubernetes.

ReactTypeScriptViteTanStack RouterSocket.IOFastAPIKubernetes

Feb 2024 → Oct 2024

Accomy Senior Software Engineer Remote, Singapore

Led the frontend team to ship the MVP of a corporate hotel booking platform. Set up the Next.js + TypeScript codebase from scratch and drove architecture decisions with product and design through launch.

Next.jsTypeScriptReact

Jun 2021 → Nov 2023

Coinalpha (Hummingbot) Software Engineer Remote, US

Built and maintained the React frontend and FastAPI backend for the Hummingbot dMiner market-making platform. Integrated MetaMask and Tezos wallets, reworked the build pipeline, and used Chrome DevTools memory profiling to fix leaks in long-running pages.

ReactFastAPIWeb3MetaMaskTezos

Aug 2021 → May 2022

Areca System Contract Software Engineer Penang, MY

Built a supermarket POS from scratch — cashier UI, transaction flows, e-wallet gateway integration, 8-bit LCD customer display, plus an OTA update pipeline so in-store terminals could deploy remotely.

ElectronNode.jsPOS hardwareOTA

Nov 2017 → Jun 2019

Aglive Pty Ltd Software Engineer Remote, Australia

Built and maintained the dashboard for a livestock and freight tracking system. Led data deduplication on Austracker (truck tracking) to improve downstream report quality.

ReactNode.jsTracking systems

$ cd ~/projects && ls side projects · weekend work

────────────────────────────────────────────────────────────────────────────────

elixir-opentui

active

Porting a TypeScript terminal-UI library to Elixir — bringing rich TUI primitives to the BEAM.

case repo

$ cat skills.txt

────────────────────────────────────────────────────────────────────────────────

languages

TypeScript · Python · Elixir · SQL

frontend

React · Next.js · Vite · TanStack Router · React Query · Socket.IO · Electron

backend

FastAPI · Phoenix & LiveView · REST API design · Kubernetes · CI/CD

other

Web3 wallets (MetaMask, Tezos) · Chrome DevTools profiling · real-time systems

education

B.IT Communications & Networking (Hons), UTAR · 2017

$ finger jyooi grab whichever channel suits you

────────────────────────────────────────────────────────────────────────────────

email me@jyooi.com

cal.com cal.com/jyooi/15min

github github.com/jyooi

linkedin in/jia-yi-ooi

twitter/x @OoiJiaYi

resume JiaYi_Ooi_Resume.pdf