Marcus Valverde
Senior Software Engineer at Cosm
Los Angeles, California, United States
Summary
👤
Senior🎓
Top SchoolMarcus Valverde is a Senior Full Stack Software Engineer in Los Angeles with seven years of experience building user-focused web applications and developer tools. A JavaScript specialist, he excels with React, Redux, Express and TypeScript, and recently co-created reactFLO, a D3-powered DevTools panel that visualizes React state flow. At Cosm he advances entertainment and education products, and previously built resilient form systems, YAML-driven CMS flows, and test suites at Codesmith. He enjoys mentoring engineers and bringing pragmatic improvements—like client-side persistence and scroll-to-first-error UX—to production. Marcus combines a curiosity-driven approach with a knack for turning complex component and state relationships into intuitive, maintainable interfaces.
7 years of coding experience
1 year of employment as a software developer
Bachelor of Arts (B.A.), Bachelor of Arts (B.A.) at Arizona State University
Github Skills (22)
javascript10
testing10
webpack10
vue10
react10
angular10
ui-components9
react-native9
web-components9
typescript9
vite9
svelte9
documentation9
frontend9
html9
Programming languages (2)
Github contributions (5)
marcusvalverde/ReactFLO
May 2020 - Sep 2022
Contributions:7 pushes, 2 branches in 2 years 4 months
marcusvalverde/solo-project
Apr 2020 - Nov 2020
Contributions:3 commits, 2 pushes, 1 branch in 7 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.