:/$whoami
ong jun xiong
:/$ titlesoftware engineer @ tiktok
:/$ focusai infrastructure · go · typescript
:/$ pwd~/singapore
:/$
JX-2026

:/$ about

I write Go and TypeScript at TikTok in Singapore, on the team that builds AI infrastructure for Global E-commerce. My job is the plumbing: the agent runtime, the tool servers, and the SDK that other engineers ship on. Last year I also ran Compoze, a one-person AI shop, until one of its clients bought it. Evenings usually mean a climbing wall or my trading journal.

:/$ experience

full resume →

2024 – now

TikTok · AI Infrastructure Engineer

Agent platform for Global E-commerce: A2A + LangGraph runtime, a Go MCP server, and a React chat SDK other teams build on. Before that, promotion backends in Go/gRPC and seller analytics on OLAP pipelines.

2025

Compoze · Founder

Solo AI solutions company — RAG chat products on LlamaIndex, FastAPI and Next.js. Acquired by one of its clients, Dec 2025.

before

Internships & school

Binance, Thought Machine, DBS and Tanso (Munich). Computer Science (Hons) at NUS, where I also TA'd and ran the Fintech Society.

:/$ skills

Languages

Go · TypeScript · JavaScript · Python · Java · SQL · Bash

Backend

gRPC · Kafka · Redis · Node.js · Spring Boot · REST · microservices

Data

MySQL · PostgreSQL · MongoDB · ClickHouse · Hive · Spark · OLAP · ETL

AI systems

MCP · A2A · LangGraph · LlamaIndex · RAG · prompt engineering · agentic workflows

Frontend

React · Next.js · Vue · Redux · Tailwind

Infra

Docker · Kubernetes · AWS · Linux · Jenkins · CI/CD · Git

:/$ education

BComp (Hons) in Computer Science, National University of Singapore, specialising in AI and software engineering, with an exchange semester at TU Munich under NUS Overseas Colleges. I taught OOP and software engineering as a TA (Student Mentor Award) and was President of the NUS Fintech Society.

:/$ tinkering

Side projects live on GitHub: a Singapore property data-analysis project, agent tooling for myself, and a markdown life-admin repo tended by an AI agent. This site is open source too. More on the hobbies page, and my university-era work is in the archive.

:/$ contact

© 2026 Ong Jun Xiong