Hi, I'm John Tsevdos, a software engineer from Athens, Greece 🇬🇷! I'm passionate about web technologies, open source, and software engineering. I love full-stack development with TypeScript, React and its rich ecosystem, and enjoy exploring Serverless and cloud technologies.
Alongside my work, I offer consulting and training in these technologies and co-organize the React Athens MeetUp!
A library that contains convenient, easy-to-use, and lightweight utility functions that solve many problems we face daily when building applications for Greek businesses.
Pick any of these modules and start learning JavaScript today. All presentations, code examples and exercises are available for free (OSS).
2024-03-18 · 1 min read
I’m extremely proud and happy to announce my latest npm package elUtils! The specific package is a must-have for all developers who build greek applications in TypeScript and JavaScript! The package has...
Read More2017-01-22 · 1 min read
Repocompare.io is my latest pet project! With this single page application (SPA) you can quickly and easily search and compare Github repositories. If you need a quick and elegant way to compare...
Read More2016-09-19 · 1 min read
Finally, I found the time to update the Greek in Tech site and create my very first npm package! The idea was to extract all the entries from the backbone single page...
Read More2016-07-27 · 1 min read
Hi all, after the very successful Gulp boilerplate for web designers and Grunt boilerplate for web designers, I’m very pleased to announce my React boilerplate (it’s as designers friendly as it can...
Read MoreMy first time online was in 1995, using a dial-up connection!
I hold a Master of Science in Internet Applications Development from London Metropolitan University (2006).
I’ve been building websites and web applications since the Web 1.0 era — long before modern frameworks — and survived the browser wars!
I’ve led front-end teams since 2018, serving as the lead developer across my last three companies.
I’ve been using React since the classes era — long before it became mainstream.
The past 7 years, I've been sharing my knowledge and passion for React, JavaScript and TypeScript as an instructor on various organizations.
A happy Linux user since 2008! My current distros of choice are Ubuntu and openSUSE Tumbleweed.
I love working with OSS. Check out my contributions and my packages.
I've worked with both Object-Oriented and Functional programming. I like both paradigms...
Co-organizer of the React 2 React Athens meetup, the official React meetup in Athens.
I'm constantly learning new things, currently, I'm learning Python and Go language.
Trying to do as much Test-Driven Development as possible... I'm also member of the Ministry of Testing Athens.
Agile methodologies really work, but only if you use them correctly...
Check out my presentations and talks section! 😁
I am responsible for the greek translation of Introducing JSON, originally written from Douglas Crockford.