Rolando Fentanes
Software Engineer at Google
United States
Summary
🤩
Rockstar🎓
Top SchoolRolando Fentanes is a seasoned software engineer with 14 years of experience building robust back-end systems and developer tools, currently contributing at Google. He has a strong history in open-source Node.js projects—authoring and hardening YouTube download libraries and improving the widely used nock HTTP mocking library—demonstrating deep expertise in networking, streaming, and test automation. His career spans startups and enterprise-grade engineering at Palantir and Predata, where he focused on reliability, refactoring, and shipping pragmatic solutions. Comfortable across full-stack and CLI tooling, he pairs careful QA and test-driven improvements with practical safety checks and performance-minded refactors. Known for turning brittle integrations into well-tested, maintainable components, he brings both hands-on coding and a contributor’s mindset to production-scale systems.
15 years of coding experience
6 years of employment as a software developer
Computer Science, Computer Science at Arizona State University
Spanish, English
Stackoverflow
18,057reputation
1.8mreached
91answers
71questions
html5-canvas
top-5%
Github Skills (33)
javascript10
static-analysis10
coffeescript10
testing10
youtube-dl10
command-line-interface10
http10
typescript10
youtube10
video-download10
lint10
typescript-types10
mocking10
command-line10
linter10
Programming languages (17)
Github contributions (5)
przemyslawpluta/node-youtube-dl
Aug 2011 - Sep 2015
youtube-dl driver for node
Role in this project:
Back-end Developer
Back-end DeveloperContributions:198 commits, 9 PRs, 28 pushes in 4 years 2 months
Contributions summary:Rolando primarily contributed to the core functionality of the `node-youtube-dl` library. Their changes involved refactoring and organizing code, improving the main download and information retrieval functions. They also addressed bugs and improved the robustness of the library by incorporating error handling. Furthermore, the user updated tests and examples to show users how to use the library.
driveryoutube-dlnodeyoutubeyoutube-downloader
fent/node-ytdl
Jul 2012 - Dec 2020
Command line youtube video downloader.
Role in this project:Back-end Developer
Back-end DeveloperContributions:19 releases, 323 commits, 73 PRs in 8 years 6 months
Contributions summary:Rolando's contributions focused on enhancing the functionality and robustness of the youtube video downloader. They added the size of downloaded format hashes and implemented a safety check within the core library code. Furthermore, the user refactored the test suite and added a CLI version for the project, demonstrating proficiency in command-line interface development. Additional commits included fixes for parsing the stream map and improving the accuracy of signatures.
command-lineyoutubeyoutube-downloadervideo-downloader
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