Senior Backend Engineer · Singapore
Hi, I'm Jiangge Wu.
10+ years building globally distributed backend systems at TikTok and Shopee, serving 100k+ QPS across multiple regions.
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.
Promotion Gateway & Double-Layer Cache
Built the gateway API serving homepage flash-sale traffic with a double-layer cache strategy (local memory + distributed Redis/Memcached) to reduce backend fan-out under traffic spikes.
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