Ruifeng Zheng
软件工程师 at Databricks
Changping District, Beijing, China
Summary
🤩
Rockstar🎓
Top SchoolRuifeng Zheng is a software engineer with 11 years of experience, currently building data infrastructure at Databricks in Beijing after senior engineering and technical leadership roles at JD Group and analytics firms. He combines a strong academic foundation from Peking University in information processing theory with hands-on backend and test automation expertise, contributing performance and reliability improvements to the widely used Apache Spark project. Ruifeng has a track record of stabilizing large-scale data processing systems by refactoring complex implementations and expanding test coverage—especially around index and pandas-like APIs—so production behavior is more consistent and maintainable. Comfortable operating at the intersection of engineering, data science, and team leadership, he brings both algorithmic rigor and pragmatic delivery experience to mission-critical analytics platforms.
11 years of coding experience
理学硕士, 信息处理理论与技术, 理学硕士, 信息处理理论与技术 at 北京大学
Chinese
Github Skills (12)
pandas10
apache-spark10
python10
test-automation10
refactor9
data-processing9
refactoring9
data-structure7
data-structures7
algorithm7
algorithms7
datastructures-algorithms7
Programming languages (12)
Github contributions (5)
apache/spark
Sep 2017 - Jan 2023
Apache Spark - A unified analytics engine for large-scale data processing
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:3317 reviews, 109 commits, 3021 PRs in 5 years 5 months
Contributions summary:Ruifeng primarily contributed to improving the performance and functionality of the Apache Spark data processing engine, with a focus on addressing stability and consistency issues. They were involved in reorganizing and enhancing tests, specifically focusing on index operations, and test coverage for pandas API operations. Their work aimed to ensure the reliability of Apache Spark, and improve code maintainability by refactoring and simplifying implementations.
apache-sparkpythonscalarjava
zhengruifeng/numpy
Jun 2022 - Dec 2025
The fundamental package for scientific computing with Python.
Contributions:10 pushes in 3 years 6 months
pythonndarrayscientific-computing-with-pythonscientific-computingpetsc
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