Wang Deng
Trading System Development Engineer at 无涯投资 (Wuya Capital)
Shanghai, Shanghai, China
Summary
🤩
Rockstar🎓
Top SchoolWang Deng is a trading system development engineer with 10 years of experience building low-latency, high-frequency systems and deep expertise in backend and database engineering. He has contributed to flagship open-source projects like TiDB and TiKV, focusing on performance, concurrency fixes, and data integrity—work that underpins cloud-native distributed SQL and key-value stores. Before trading systems he optimized onboard systems and storage at Pony.ai, gaining strong systems knowledge in Linux memory, scheduling, locks and kernel-level performance tuning. His background blends a master's in control science with hands-on C++/Go development, automated database testing, and production-grade client libraries. Colleagues describe him as a pragmatic debugger who uncovers subtle race conditions and JSON/database edge cases that others miss.
10 years of coding experience
3 years of employment as a software developer
硕士, 控制科学与工程, 硕士, 控制科学与工程 at 西安交通大学
Github Skills (38)
database10
json10
testing10
key-value10
atomics10
databases10
query-optimization10
distributed-systems10
tikv10
go10
sql10
optimisation10
distributed-transactions10
atomic10
performance-tuning10
Programming languages (16)
Github contributions (5)
pingcap/tidb
May 2017 - Jan 2023
TiDB - the open-source, cloud-native, distributed SQL database designed for modern applications.
Role in this project:
Back-end Developer & Database Engineer / Database Administrator
Back-end Developer & Database Engineer / Database AdministratorContributions:5580 reviews, 477 commits, 2067 PRs in 5 years 9 months
Contributions summary:Wang's contributions centered around debugging and improving the performance and reliability of the TiDB distributed SQL database. Their work involved fixing data races, addressing potential data corruption issues, and ensuring the correct behavior of various database operations, such as handling of index changes and query planning. The user focused on maintaining the stability of the database system, enhancing data integrity, and improving the efficiency of database operations.
ai-poweredtidbserverlesshtapreal-time
tikv/client-go
Dec 2021 - Jan 2023
Go client for TiKV
Role in this project:Back-end Developer
Back-end DeveloperContributions:8 reviews, 9 commits, 37 PRs in 1 year 1 month
Contributions summary:Wang primarily focused on resolving data races and concurrency issues within the TiKV client-go repository, as evidenced by multiple commits addressing these problems. They made changes to ensure thread safety across various components, including the KVSnapshot, and corrected data races in the LockKeys and memChangeHook features. Furthermore, the user implemented fixes for potential panics and improved stability, contributing to the robustness of the client library.
golanggo-clienttikv
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