Federico Vázquez is a Senior Software Engineer based in Montevideo with 11 years of full-stack experience building scalable web applications and modern user interfaces using Node.js, React, Vue and Docker. At Mercado Libre he has progressed through multiple engineering roles contributing to product catalog systems and internal tooling that improve user experience and business outcomes. He combines hands-on front-end design with backend scalability, enjoys participating across the full development lifecycle, and mentors through knowledge sharing. An active open-source contributor, he has made practical improvements to the popular dayjs library—adding dynamic locale handling and robustness to date cloning—demonstrating attention to developer ergonomics and internationalization. Always learning, he pairs solid production experience with a drive for continuous professional and academic growth.
⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API
Role in this project:
Full-stack Developer
Contributions:18 commits, 3 PRs, 21 comments in 5 days
Contributions summary:Federico primarily contributed to the `dayjs` library by fixing linting errors, merging branches, and removing unnecessary localization files. They implemented a setLocale method for dynamic locale setting and enhanced the clone functionality to inherit locales. Furthermore, the user addressed issues with date and dayjs objects, improving the library's overall usability.
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Federico Vázquez - Senior Software Engineer at Mercado Libre