César Villaseñor
Python Developer at Investor's Business Daily
Mexicali, Baja California, Mexico
Summary
🤩
Rockstar🎓
Top SchoolCésar Villaseñor is a Python developer with nine years of experience building and migrating web backends, automations, and full-stack features across startups and enterprise environments. Based in Mexicali, he specializes in Python, PostgreSQL and JavaScript, and has led Django migrations, DBA and Unix administration tasks while shipping REST APIs and front-end improvements. He’s worked in agile teams as a consultant for fintech and media projects, contributing to AWS-backed services and mentoring peers through code reviews. An active open-source contributor, César improved accessibility and spatial navigation in the widely used video.js player—showing attention to inclusive UX beyond backend engineering. He combines a practical, self-taught curiosity with a collaborative mindset, often taking on adjacent ops and DBA responsibilities to keep projects moving.
9 years of coding experience
3 years of employment as a software developer
Master's degree, Data Science and Big Data Processing, Master's degree, Data Science and Big Data Processing at Universidad Cuauhtémoc Plantel AguascalientesBachelor's degree, Computer Engineer, Bachelor's degree, Computer Engineer at Universidad Autónoma de Baja California
Spanish, English
Github Skills (7)
accessibility10
videojs10
javascript10
front-end-development10
video-player10
html9
css9
Programming languages (1)
Github contributions (5)
videojs/video.js
Jan 2024 - Aug 2024
Video.js - open source HTML5 video player
Role in this project:
Front-end Developer
Front-end DeveloperContributions:23 reviews, 19 PRs, 42 pushes in 7 months
Contributions summary:César primarily contributed to the video.js project by implementing and fixing features related to spatial navigation and accessibility. They worked on improving focus behavior, particularly in error modals, ensuring a better user experience for navigation using assistive technologies. Furthermore, the user addressed compatibility issues by ensuring captions are displayed in older browsers by implementing conditional style applications.
dashhtml5-audiovideojshtml5-videojavascript
bzizmo/video.js
Nov 2023 - Oct 2024
Video.js - open source HTML5 video player
Contributions:5 reviews, 18 PRs, 67 pushes in 11 months
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