# Kefan Zhang

> Senior Software Engineer @ Netflix | V8, dev tools, agentic tooling

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

Stay hungry, stay foolish

## Work Experience
### Senior Software Engineer @ Netflix
Jan 2023 – Present | Los Gatos, California, United States
I work on developer tooling, debugging infrastructure, and runtime instrumentation for the Netflix TV UI platform. My focus is improving how engineers diagnose issues and understand performance in a large-scale production environment.

Highlights
	•	Enhanced our internal Inspector with advanced profiling, memory, and network capabilities so it meets (and in some workflows exceeds) Chrome DevTools for our stack.
	•	Built AI-assisted developer tools that connect internal systems to modern coding assistants, reducing friction when querying logs, docs, and debugging data.
	•	Developed a CLI-based agent/workflow generator that captures real debugging sessions and automatically produces reusable workflows.
	•	Integrated debugging automation into Slack, enabling teams to collaborate around investigations in real-time.
	•	Improved runtime-level observability across C++, JavaScript, Node.js, V8, and DevTools protocol integrations.

I collaborate closely with platform and test teams to evolve our engineering tooling and improve developer experience across the organization.

### Software Engineer @ Meta
Jan 2020 – Jan 2023 | Menlo Park, California, United States
• Launched the very first video ad optimization product on Instagram Story, driving incremental revenue growth year over year
• Led and implemented various ads optimization products on both advertiser and user sides, enhancing Instagram ad performance
• Built web stores, promo-code generator, and catalogue management systems for Oculus and Portal product lines
• I miss the gyms at MPK27 and MPK60

### Software Engineer @ Microsoft
Jan 2018 – Jan 2020 | Cambridge, Massachusetts
• Built Office 365 collaborative editing experiences
• Trained at 1 Memorial Drive‘s gym

### Software Engineer Intern @ Yext
Jan 2017 – Jan 2017 | Mclean, Virginia
• Built site templates, SEO, and ETL pipelines for various Fortune 500 clients
• Trained at 1TO1 Fitness in the 7900 Westpark Dr building


## Education
### Bachelor of Science (BS) in Computer Engineering, Computer Science
University of Virginia

### High School Diploma
No.1 High School of Shijiazhuang

### Middle School Diploma
ShiJiaZhuang Foreign Language Education Group


## Contact & Social
- LinkedIn: https://linkedin.com/in/kefan-swe

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Source: https://flows.cv/kefan
JSON Resume: https://flows.cv/kefan/resume.json
Last updated: 2026-03-22