Sergio Andújar
Desarrollo Web at Winche Redes Comerciales
Greater Barcelona Metropolitan Area Spain
Summary
Sergio Andújar is a full-stack web developer with eight years of hands-on experience building APIs, scripts and web apps across Node.js, Golang, Python and PHP/Symfony, currently developing at Winche and freelancing on Fiverr. He blends production-grade backend work (Docker, GitHub Actions, Jest/Vitest) with frontend expertise in React, TypeScript and modern CSS stacks, and has delivered e-commerce and MERN projects as well as public automation scripts on his GitHub. Comfortable managing servers and protocols (SSH/FTP) and teaching programming, he brings practical operational experience from roles at Ryanair and Amazon that sharpens his troubleshooting and reliability focus. A CTF player by hobby, he combines curiosity for security and tooling with a steady freelance track record (5.0 rating) and a habit of continuous self-directed learning.
7 years of coding experience
English, Spanish, Catalan
Github Skills (26)
kotlin10
javascript9
java9
python9
php9
swift9
dart8
rust8
active-directory8
typescript8
wordpress8
ruby8
scanner8
go7
pentesting6
Programming languages (3)
Github contributions (5)
sergioab7/boxthehack
Jul 2020 - Jul 2020
Contributions:6 commits, 19 pushes, 1 branch in 1 day
sergioab7/shodus
Feb 2021 - Feb 2021
Script para automatización de búsqueda en shodan
Contributions:11 commits, 1 PR, 9 pushes in 3 days
shodan
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