Yuning Zhang

Pittsburgh, Pennsylvania, United States

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Summary

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Rockstar

🎓

Top School

Yuning Zhang is an experienced software engineer with 11 years focused on large-scale distributed systems and low-level systems like databases, kernels, and compilers. A Carnegie Mellon MS graduate with top grades and a strong academic background from Shanghai Jiao Tong University, Yuning has shipped production pipelines and performance improvements at Databricks, including a static analysis pipeline for API/drift tracking and an aarch64 image updater to enable ARM deployments. He has practical systems-level contributions to the TiKV distributed transactional key-value store—implementing metrics, bitwise query functions, and memory-allocation optimizations—and has driven cross-data-center traffic reductions and query performance gains during an internship at Facebook. Yuning combines deep performance tuning experience with pragmatic automation, having reduced sync latency from days to hours and removed risky log4j dependencies across a codebase. Based in Pittsburgh, he blends research-caliber rigor with hands-on delivery and a knack for uncovering subtle inefficiencies that yield large operational wins.

11 years of coding experience

4 years of employment as a software developer

Master of Science - MS, Information Networking, 4.0/4.33, Master of Science - MS, Information Networking, 4.0/4.33 at Carnegie Mellon University

Bachelor of Engineering - BE, Computer Software Engineering, 93.1/100, Bachelor of Engineering - BE, Computer Software Engineering, 93.1/100 at Shanghai Jiao Tong University

Chinese, English

Stackoverflow

Stats

161reputation

107kreached

0answers

2questions

Github Skills (12)

rust10

key-value10

metric9

distributed-transactions9

rocksdb9

tidb8

performance-optimization7

distributed-systems7

go7

sql-server6

hive6

sql6

Programming languages (13)

C++CSSRustCTeXGoTypeScriptMoonBit

Github contributions (5)

tikv/tikv

Apr 2018 - May 2020

Distributed transactional key-value database, originally created to complement TiDB

Role in this project:

Back-end Developer

Contributions:11 commits, 12 PRs, 44 comments in 2 years 2 months

Contributions summary:Yuning primarily contributed to implementing and modifying features related to metrics and performance monitoring within the TiKV database. Their work involved changes to the codebase for gathering and presenting statistics, including the use of IntCounter and IntGauge for metrics. The user also implemented several bitwise functions within the query engine. Additionally, the user worked on adding import mode timeout functionalities and removing unnecessary memory allocations related to string operations.

tidbtikvdatabasekey-value-databaseconsensus

codeworm96/codeworm96.github.io

Feb 2015 - May 2019

Contributions:53 pushes, 1 branch in 4 years 4 months

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