Miguel San Segundo Martín
Frontend Developer at Demio
Surat Thani Province, Thailand
Summary
🤩
Rockstar🎓
Top SchoolMiguel San Segundo Martín is a seasoned front-end engineer and co-founder with over a decade of hands-on experience building high-performance web applications and developer-friendly tooling. He specializes in React and TypeScript, has authored hundreds of pull requests for Automattic’s wp-calypso (the JavaScript backbone of WordPress.com), and brings a meticulous focus on usability, accessibility, security, and scalability. As Co-Founder at Flax he’s architecting a Next.js site builder and edge-first microservices that prioritize SEO, low-latency delivery, and modular editing workflows. Previously he led front-end efforts at startups and scaleups—shipping WebRTC-based conferencing, cross-platform React Native apps, and big-data visualization clients—while mentoring junior engineers. Comfortable across the full stack, he pairs product-minded UI craftsmanship with production-grade backend patterns like custom middleware and incremental static regeneration. Based in southern Thailand, Miguel blends engineering discipline with a global, remote-work mindset and a proven track record of improving developer experience on large open-source projects.
11 years of coding experience
8 years of employment as a software developer
Telecommunications Engineering, Image and sound, Telecommunications Engineering, Image and sound at Universitat Politecnica de Valencia (UPV)High school, Technology and Science, Diploma, High school, Technology and Science, Diploma at Salesianos de atocha, Madrid
English, Spanish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (11)
css10
javascript10
react10
ui-design9
ux-design8
html8
wordpress7
responsive-design7
nodejs6
s66
redux6
Programming languages (6)
Github contributions (5)
Automattic/wp-calypso
Apr 2022 - Jan 2023
The JavaScript and API powered WordPress.com
Role in this project:
Front-end Developer
Front-end DeveloperContributions:566 reviews, 85 commits, 507 PRs in 9 months
Contributions summary:Miguel primarily contributed to the front-end development of the WordPress.com Calypso project. Their work included implementing new features in the design picker, such as auto-scaling of iframe previews and adding the ability to scroll to a section. They also made UI improvements like adding aria labels and CSS transitions. Furthermore, they addressed various UI/UX issues by revising the copy and translations and fixing UI bugs.
apireactwordpressjavascriptes6
miksansegundo/iglu.angular1.dev.env
Nov 2016 - Nov 2016
Contributions:62 pushes, 11 branches in 9 days
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