Yanfeng Zhu
Principal Architect at Baidu, Inc.
Beijing, China
Summary
🤩
Rockstar🎓
Top SchoolYanfeng Zhu is a Principal Architect based in Beijing with a decade-plus track record leading mobile advertising and large-scale data mining teams at Baidu, where his work helped drive the company's early mobile revenue surge. He combines research-grade expertise in spatio-temporal analytics and wireless networking (PhD from Tsinghua) with hands-on engineering—designing ad models, feature pipelines, and scalable storage that power location-sensitive ads and app recommendations. Earlier as an IBM Research staffer he led mobility-analytics systems used for traffic inference and urban planning, publishing and patenting core techniques. An active backend contributor to notable open-source databases like Apache Doris and LotusDB, he focuses on query processing, data integration, and high-performance storage internals. Colleagues rely on him for bridging theoretical modeling with production-grade engineering to extract business impact from massive mobile datasets.
6 years of coding experience
3 years of employment as a software developer
Beijing University of Posts and TelecommunicationsPhD, Information & Communication Engineering, PhD, Information & Communication Engineering at Tsinghua University2008
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (19)
databases10
storage10
query-optimization10
java10
olap10
javas10
go10
sql10
database-design10
golang10
query-engine10
wal10
relational-databases10
sql-database10
database10
Programming languages (5)
Github contributions (5)
lotusdblabs/lotusdb
Dec 2021 - Jan 2022
Most advanced key-value database written in Go, extremely fast, compatible with LSM tree and B+ tree.
Role in this project:
Back-end Developer & Database Engineer
Back-end Developer & Database EngineerContributions:15 commits, 7 PRs in 8 days
Contributions summary:Yanfeng primarily contributed to the core database functionalities, including the implementation of a memtable and its associated data structures like skip lists and hash skip lists. Their work involved defining interfaces, creating new data structures, and integrating them with the WAL (Write-Ahead Log) for persistence and recovery. The user also added and modified files related to logging and testing of these components.
golangslmkv-storelsmlsm-tree
apache/doris
Mar 2023 - Aug 2024
Apache Doris is an easy-to-use, high performance and unified analytics database.
Role in this project:Backend Developer
Backend DeveloperContributions:3 reviews, 23 PRs, 66 comments in 1 year 5 months
Contributions summary:Yanfeng contributed to the Apache Doris database project by implementing features and fixing bugs in the backend code. Their work included adding support for "insert overwrite" statements, implementing the "ipv4_cidr_to_range" function and supporting the cume_dist window function, which indicates a focus on query processing and data manipulation. The user also addressed a bug related to block column size checks and fixed a JNI reader function name, highlighting involvement in performance and integration aspects of the system.
dbmsapache-dorisdbtreal-timehudi
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