# Yuning Zhang

> Software Developer at Databricks | Master Student of CMU

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/yuning

I will graduate in May 2020. I am interested in building robust large-scale distributed systems and low-level systems (database/kernel/hypervisor/compiler).

## Work Experience
### Software Engineer @ Databricks
Jan 2020 – Jan 2023 | Mountain View, California, United States
• Designed and implemented a static analysis pipeline for nightly and release builds, used for tracking API breaking changes and dependency upgrades, checking symbol conflicts and generating dependency lists in release notes
• Built a new pipeline to synchronize internal Spark fork with the company's monorepo, reduced the latency to integrate new code changes from days to less than 3 hours. Improved monitoring by adding dashboards and alerts for out of sync
• Developed and deployed the pipeline for updating aarch64 images, enables the product on ARM-based instance
• Coordinated the important dependency update from Hadoop 2 to Hadoop 3 during Databricks Runtime 9 to 10 major release
• Contributed several user experience improvements to Spark History Server, a debugging tool for Spark jobs
• Contributed to several optimization passes in the query compiler, like common subexpression elimination
• Removed all old log4j dependencies and replaced them with reload4j project, helped mitigate log4j vulnerabilities

### Performance and Capacity Engineer, Intern @ Facebook
Jan 2019 – Jan 2019 | Menlo Park, CA
• Built a new pipeline to annotate network traffic metrics with service and hardware information, and boosted query speed by 2x through forcing Presto to use broadcast join in physical plan
• Designed and developed a tool in Python to search for adjustments of service capacity placement among data centers which can reduce cross-datacenter network traffic, and proposed several suggestions which each can reduce the cross-datacenter network traffic by 12%(several Tb/s) with the help of that tool

### Software Development Intern @ Face++
Jan 2018 – Jan 2018 | Beijing City, China
• Designed and implemented a distributed storage system for large-scale computer vision datasets with Go
• Improved the service monitoring system by adding more detailed metrics about usage patterns for better schedule policy

### Software Development Engineer Intern @ Microsoft
Jan 2017 – Jan 2017 | Shanghai Suburb, China
• Boosted VSCode Arduino extension’s building speed by 8.25x with incremental build feature, reduced average build time from 1.5 minutes to 10 seconds
• Provided insights of VSCode user activity data using machine learning clustering algorithms


## Education
### Master of Science - MS in Information Networking
Carnegie Mellon University

### Bachelor of Engineering - BE in Software Engineering
Shanghai Jiao Tong University


## Contact & Social
- LinkedIn: https://linkedin.com/in/yuning-zhang

---
Source: https://flows.cv/yuning
JSON Resume: https://flows.cv/yuning/resume.json
Last updated: 2026-03-29