Cosimo Chellini
Senior Software Engineer at Unobravo | Servizio di psicologia online
Florence, Tuscany, Italy
Summary
👤
Senior🎓
Top SchoolCosimo Chellini is a Senior Software Engineer with nine years of experience building scalable web applications across Node.js, .NET, and TypeScript stacks while crafting polished front-ends in React/Next and Vue/Nuxt. He has a strong track record migrating legacy monoliths to modern architectures, improving performance and developer experience—most recently lifting core pages to an average Web Vitals score of 85/100. At Unobravo he drives reliability through observability, feature-flagged rollouts, and shared libraries that improve DX for 40+ engineers, and he mentors frontend best practices across teams. Comfortable balancing product-facing UI work with backend infrastructure and A/B experimentation, he brings a pragmatic, measurement-driven approach to shipping user-focused features. Based in Florence, he combines consultancy experience for major brands with hands-on engineering leadership in fast-moving startups.
9 years of coding experience
7 years of employment as a software developer
High School Diploma, Information Technology, High School Diploma, Information Technology at Isis Gobetti Volta
Italian, English
Stackoverflow
1,680reputation
168kreached
105answers
2questions
Github Skills (154)
windows10
certification10
authentication10
telegram10
javascript-framework10
vuejs210
date-fns10
launcher10
javascript10
jquery10
api10
jwt10
telegram-bot10
chatbot10
color-picker10
Programming languages (8)
Github contributions (5)
cosimochellini/sort-es
Feb 2020 - Jul 2022
Blazing fast, tree-shakeable, type-safe, modern utility library to sort any type of array
Contributions:194 commits, 3 PRs, 280 pushes in 2 years 4 months
jsjavascript-libraryarrayblazingtype-of
cosimochellini/Lattana.Landing
Oct 2018 - Jan 2023
public website of lattana
Contributions:299 commits, 19 PRs, 353 pushes in 4 years 4 months
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