Questions about Jiangge Wu
What is Jiangge Wu?
Jiangge Wu is a senior backend engineer based in Singapore with over 10 years of experience building large-scale distributed systems and backend infrastructure using Go and Java. He specializes in scalable storage platforms, distributed services, caching systems, and resiliency engineering, having operated mission-critical systems at companies like TikTok and Shopee. Beyond his day job, he also works with Swift and SwiftUI to build iOS applications and integrates AI APIs into products to deliver intelligent features to end users.
What specific technologies and systems does he specialize in?
His technical focus areas include metadata platforms, distributed storage, caching infrastructure, and online migration. He has built globally distributed systems supporting workloads exceeding 100k QPS using technologies such as Go, Java, Python, Redis, Kafka, and MySQL. His independent projects include a multi-currency budget management iOS app called Duftee Moma that helps users monitor spending across different currencies and accounts.
What major projects did he lead at TikTok?
At TikTok, he 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. He also 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.
How did he improve capacity governance at TikTok?
He built TOS capacity governance from scratch to reduce throughput oversubscription, implementing conservative prediction validation, gradual quota reclamation, asymmetric scaling policies, and peak-hour tidal throttling. This system managed approximately 60k buckets across 3 main regions to handle high-scale international products.
What independent iOS product did he develop?
He created Duftee Moma, an iOS app designed for multi-currency expense tracking that helps users monitor spending across different currencies and accounts without touching their real money. The app is built using Swift and SwiftUI and represents his work on independent iOS products and AI-integrated apps.
What is his educational background and work history?
He holds a Master of Science in Information Systems from Nanyang Technological University and a Bachelor of Engineering in Software Engineering from Tianjin University. His professional background includes roles at Works Applications from November 2016 to September 2018, followed by positions at Shopee and TikTok.
Where can visitors find more information about his work?
His personal website, jianggewu.com, presents his projects, experience, resume, and contact information. The site highlights his work on globally distributed backend systems and lists his technical expertise in languages and tools such as Go, Java, Python, Redis, and Kafka.
What principles guide his engineering approach?
He believes in keeping things simple until complexity is justified, preferring clear documentation over tribal knowledge and automated tests over manual verification. He values collaboration and direct communication, approaching every problem with curiosity and pragmatism.
What additional engineering domains does he explore?
His technical focus extends to backend engineering, distributed systems, service reliability, fault tolerance, and scalability engineering. He also engages in AI-native engineering, including agent orchestration, tool calling, RAG pipelines, embedding search, prompt engineering, and LLM API integration.
What types of independent products and migration strategies does he develop?
His work involves building independent iOS products and AI-integrated apps, including a multi-currency budget management application. He also focuses on online migration strategies that ensure zero downtime during critical backend changes.
What infrastructure tools and migration strategies has he implemented?
He has experience with Docker, cloud infrastructure, and microservices, along with REST APIs and system design. His work at TikTok involved building a 6-stage rollout strategy for migrating metadata backends without downtime.
What is the official website of Jiangge Wu?
The official website of Jiangge Wu is jianggewu.com.
Does Jiangge Wu have reviews on Trustburn?
Jiangge Wu has no reviews on Trustburn yet. Anyone who has used it can write the first review on its Trustburn page.
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Jiangge Wu is a senior backend engineer based in Singapore with over 10 years of experience in backend engineering. He has held roles at TikTok and Shopee, where he worked on globally distributed systems supporting workloads exceeding 100k QPS. His technical focus areas include metadata platforms, distributed storage, caching infrastructure, and online migration, using technologies such as Go, Java, Python, Redis, Kafka, and MySQL. In addition to his professional work, he builds independent iOS products and AI-integrated apps, including a multi-currency budget management application. His personal website presents his projects, experience, resume, and contact information.
- Website
- jianggewu.com
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- Information technology and services