John Tsevdos
Lead Software Engineer (Front-end Team) - Senior Software Engineer Level 2 at Orfium
Athens, Attica, Greece
Summary
👤
Senior🎓
Top SchoolJohn Tsevdos is a seasoned front-end leader with over 12 years of professional experience and 18 years crafting elegant, usable web applications, currently leading the front-end team at Orfium where he oversees multiple SPAs and the company design system. He specializes in React and TypeScript ecosystems (Next.js, Astro, Recoil, redux, zustand) and pairs hands-on implementation with product-facing responsibilities like backlog grooming, API design, CI/CD pipelines and testing. A habitual mentor and instructor, he runs meetups, workshops and consulting engagements, and contributes to open source while maintaining a personal portfolio of projects and npm packages. Equally curious about language design and paradigms, he’s exploring Rust, functional and reactive patterns (Gleam, Ramda, RxJS) to bring stronger correctness and composability to front-end architectures. Based in Athens, he combines pragmatic engineering with a dislike of spaghetti code and bureaucracy, preferring clean architecture, automation and TDD to scale teams and products.
12 years of coding experience
18 years of employment as a software developer
MSc Internet Applications Development, MSc Internet Applications Development at London Metropolitan University
English, Greek
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (59)
javascript10
typescript10
user-interface10
browser10
single-page10
gulp-boilerplate10
utility10
declarative10
frontend10
server10
react10
backbone10
architecture9
single-page-application9
npm9
Programming languages (4)
Github contributions (5)
tsevdos/nwrapper
Jan 2015 - Apr 2018
Contributions:1 PR, 2 pushes in 3 years 3 months
jqueryjavascriptplug-injquery-pluginplug
tsevdos/tsevdos-me
Oct 2017 - Jun 2022
Contributions:15 pushes, 3 branches in 4 years 8 months
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