Marcos Iglesias
Staff Frontend Engineer at Puzzle đ§©đ
Barcelona, Catalonia, Spain
Summary
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Rockstarđ
Top SchoolMarcos Iglesias is a Staff Frontend Engineer based in Barcelona with 13 years of experience building high-impact web products, developer platforms, and design systems. He combines hands-on expertise in React, D3.js, TypeScript and web performance with a track record of driving cross-org initiativesâmigrating React across repos, consolidating design tokens, and launching accessible components used by dozens of teams. A prolific OSS author and maintainer, he created Britecharts, authored Pro D3.js, and is a core front-end contributor to the widely used Amundsen data discovery project. He has repeatedly improved product metrics and adoptionâhelping tools like Verity and Amundsen achieve significant WAU and engagement gainsâwhile mentoring and promoting multiple engineers. Known for turning complex data UIs into maintainable, accessible experiences, he also brings an unusual mix of product-ready RFC/process leadership and deep visualization craftsmanship.
13 years of coding experience
15 years of employment as a software developer
Technical Engineering Telecommunications and Electronics, Technical Engineering Telecommunications and Electronics at Universidad de ValladolidUPC Universitat PolitĂšcnica de Catalunya
English, Spanish, German
Stackoverflow
101reputation
13kreached
6answers
0questions
Github Skills (21)
javascript10
npm10
css10
typescript10
ui-design10
sc10
uid10
scs10
front-end-development10
typescript-types10
html10
typescripts10
react10
accessibility9
dispatch6
Programming languages (5)
Github contributions (5)
amundsen-io/amundsenfrontendlibrary
May 2020 - Apr 2021
Front-end service library for Amundsen
Role in this project:
Front-end Developer
Front-end DeveloperContributions:237 reviews, 112 commits, 307 PRs in 10 months
Contributions summary:Marcos primarily focused on front-end development tasks, including updating and resolving security vulnerabilities in NPM dependencies for the front-end service library. They implemented UI and styling improvements by updating resource icons, adding accessibility features such as labels and ARIA tags, and fixing issues with dashboard and table detail components. The user also addressed rendering problems in Firefox and improved the user experience by addressing issues with typeahead and user search.
reactamundsenservice-libraryfront-endtypescript
amundsen-io/amundsen
May 2020 - Jan 2023
Amundsen is a metadata driven application for improving the productivity of data analysts, data scientists and engineers when interacting with data.
Role in this project:Front-end Developer
Front-end DeveloperContributions:401 reviews, 127 commits, 206 PRs in 2 years 8 months
Contributions summary:Marcos primarily focused on front-end development, making significant changes to the user interface and React components within the Amundsen data discovery application. Their contributions included updating and fixing UI components, adding new elements like the "See details" button and enhancing accessibility features across multiple pages, including the home page and dashboard. The user also worked on styling aspects of the application with SCSS and improved the rendering of various UI elements. Their work impacted features such as search results, announcements, and the display of various user profile information.
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