Yeison Daza
Staff Software Engineer at Tesorio
Medellín, Antioquia, Colombia
Summary
👤
Senior🎓
Top SchoolYeison Daza is a Staff Software Engineer based in Medellín with 11 years of experience building product-minded, full-stack web applications across startups and fast-moving teams. He specializes in React-driven frontends and performance-focused UI work, with notable open-source contributions to high-profile projects like Gatsby and CodeSandbox where he improved search, analytics integration, accessibility, and component performance. At Tesorio he progressed from SDE to Staff, owning features end-to-end and shaping engineering culture while balancing frontend and backend responsibilities. His background includes technical leadership, teaching and course development at Platzi, and hands-on customer-facing tech operations—an uncommon blend that helps him translate user needs into scalable engineering solutions.
11 years of coding experience
4 years of employment as a software developer
Frontend Profesional Ingeniería de software, Frontend Profesional Ingeniería de software at PlatziTecnico en sistemas Tecnología informática/Tecnología de sistemas informáticos, Tecnico en sistemas Tecnología informática/Tecnología de sistemas informáticos at Sistemas interactivosTecnologo en administración y redes de computadores Tecnología informática/Tecnología de sistemas informáticos, Tecnologo en administración y redes de computadores Tecnología informática/Tecnología de sistemas informáticos at SENA
English, Spanish
Github Skills (26)
javascript10
css10
ui-design10
uid10
front-end-development10
html10
static-site-generation10
react10
gatsby10
web-application9
accessibility9
optimisation9
web-performance9
webapp9
optimization9
Programming languages (6)
Github contributions (5)
codesandbox/codesandbox-client
Sep 2019 - Dec 2019
An online IDE for rapid web development
Role in this project:
Front-end Developer
Front-end DeveloperContributions:28 commits, 35 PRs, 45 comments in 2 months
Contributions summary:Yeison primarily contributed to the front-end of the CodeSandbox client. Their work involved implementing UI components, fixing bugs related to the user interface, and improving the overall user experience. They also worked on accessibility improvements, such as navigation enhancements and incorporating Reakit for modal components. Additionally, the user addressed performance issues and refactored components for better efficiency.
reactjavascriptsvelteonline-idepreact
gatsbyjs/gatsby
Mar 2018 - Jun 2018
The best React-based framework with performance, scalability and security built in.
Role in this project:Front-end Developer
Front-end DeveloperContributions:6 commits, 3 PRs, 8 comments in 3 months
Contributions summary:Yeison focused on enhancing the user interface and performance of the Gatsby website, as indicated by changes in the `www/src/html.js` file. They added and optimized the use of external scripts and stylesheets, specifically Docsearch, to improve the website's search functionality. Additionally, the user worked on integrating a Facebook analytics plugin, suggesting a focus on web analytics and potentially tracking user interactions. Their commits demonstrate a keenness for front-end optimization and performance improvements.
gatsbyreactweb-appfastestcompiler
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