// Software Developer

Robin Collet

PHP · Symfony · Tailwind
Open to work Full-Stack capable Backend-focused
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// About
Writing code since
2011

Software developer with a passion for programming, starting with my first HTML project in school, through my own Minecraft mods written in Java, all the way to my apprenticeship as a certified software developer. To this day, I'm happiest teaching myself new technologies. Code is less a job to me than an ongoing playground for experimentation: what began as childlike curiosity while modding has grown into a deliberate, self-directed journey through software development and IT security.

Now

I am currently focusing on red teaming, offensive security, and new web technologies.

// Skills
Core stack
PHP Symfony Tailwind HTML CSS Twig
Comfortable with
Linux JavaScript Java Git SQL Windows MariaDB Jira Trello XenForo
Currently learning
macOS PostgreSQL Docker
// Experience
current
IT Specialist, Application Development
Sound-Wave Veranstaltungstechnik GmbH
Permanent position
2017 – 2020
IT Specialist, Application Development
UDG Rhein-Main GmbH
Apprenticeship
2014 – 2015
Insurance Systems Consultant for Sales Systems
R+V Versicherung AG
School internship (one year)
2013
Retail Clerk
real,- SB-Warenhaus GmbH
School internship (three weeks)
2012
Event Technician
Sound-Wave Veranstaltungstechnik GmbH
School internship (two weeks)
2011
Retail Clerk
LEGO GmbH
School internship (three weeks)
// Work
Web-App · 2026 01
Portfolio

A personal portfolio and CMS built with Symfony, replacing an old, stale website that hadn't been touched in years and no longer reflected who I am or what I do. Instead of hardcoding content, I manage the content through a custom admin panel with real-time components. Built so that adding new content is just a few clicks away and not a code change.

JavaScript PHP Stimulus Symfony Tailwind
Internal Tool · 2025 02
PAYBACK Couponeer

PAYBACK Couponeer is a small browser extension for Chromium-based browsers that solves one single, recurring annoyance: having to activate PAYBACK coupons one by one. With a single click, all available, not-yet-activated coupons get activated automatically instead of clicking through them manually. A deliberately small, pragmatic project, born out of everyday frustration and the desire to just automate an annoying task.

JavaScript
Web-App · 2020 03
CTE

CTE was my final project for my apprenticeship as a certified application developer (Fachinformatiker für Anwendungsentwicklung): a platform that helps employees prepare specifically for certification exams. Instead of managing scattered study materials and flashcards, the application brings together exam content, practice questions, and progress tracking in one central place. Created under the conditions of the IHK final exam, the entire application, from requirements analysis to finished solution, had to come together within a tight time frame.

PHP Symfony Tailwind