Senior Backend Engineer · Singapore
Hi, I'm Jiangge Wu.
10+ years in backend engineering. Built globally distributed systems at TikTok and Shopee, with experience supporting workloads exceeding 100k QPS.
I specialize in metadata platforms, distributed storage, caching infrastructure, and online migration — and build independent iOS products and AI-integrated apps on the side.
Featured Projects
Selected work that represents my technical focus.
TOS Metadata Control Plane
Owned and evolved TMeta, the metadata control plane for TikTok Object Storage (TOS), supporting globally distributed storage infrastructure with cache-first serving and graceful degradation.
RDS to KV Online Migration
Migrated the metadata backend from RDS to KV without downtime using a 6-stage rollout strategy with dual-write, backfill, consistency verification, and rollback safety at every phase.
Zero downtime · Dozens of regions
Quota Automation & Traffic Governance
Built TOS capacity governance from scratch to reduce throughput oversubscription: conservative prediction validation, gradual quota reclamation, asymmetric scaling policies, progressive customer onboarding, and peak-hour tidal throttling.
~60k buckets · 3 main regions
Moma
A budget management iOS app designed for multi-currency expense tracking, helping users monitor spending across different currencies and accounts without touching their real money.
Experience
A brief overview of my professional background.
Senior Software Engineer
TikTok · Singapore
Senior Software Engineer
Shopee · Singapore
Software Engineer
Works Applications · Singapore
Let's Connect
I'm open to new opportunities, collaborations, and conversations about backend engineering and product development.
Get in Touch