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# Senior Fullstack Softwareentwickler - Hamburg

- **Company:** CHECK24 Media GmbH
- **Location:** Hamburg, Germany
- **Experience:** Expert
- **Salary:** €45,000.0 - €75,000.0
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Artificial Intelligence, Automation of Tests, Code Review, Information Systems, Databases, Continuous Integration, Relational Databases, Machine Learning, Microsoft Office, Software Engineering, Symfony, ReactJS, Large Language Models, Backend, Information Technology, Front End Software Development, Restful APIs
- **Published:** August 8, 2026
- **Apply:** https://www.adzuna.de/details/5830090187

## About the Role

* Abgeschlossenes Studium der Informatik, Naturwissenschaften oder eines vergleichbaren technischen Studiengangs erforderlich
 * Mehrjährige Berufserfahrung in der Softwareentwicklung (mind. 4 Jahre) - idealerweise in agilen Umgebungen
 * Fundierte Kenntnisse in mindestens zwei Programmiersprachen sowie im Umgang mit relationalen Datenbanken
 * Praktische Erfahrung mit Symfony und/oder React
 * Analytisches Denken, Eigenmotivation und Lust auf Neues und Verantwortung
 * Sehr gute Deutschkenntnisse (C1), Teamgeist und Lust im Team vor Ort im Office zu arbeiten.

## Description

* Entwickle unsere Anwendungen kontinuierlich weiter und sorge durch sauberen, performanten Code für Qualität, Stabilität und Skalierbarkeit
 * Arbeite über den gesamten Stack hinweg - vom Frontend (React) über Backend (Symfony, REST-APIs) bis zu Datenbanken & Plattform-Komponenten
 * Integriere KI-Funktionalität (LLMs) produktionsreif in bestehende und neue Features
 * Optimiere und skaliere unsere Systemlandschaft für Performance, Stabilität und Verfügbarkeit
 * Stelle hohe Qualität durch Code Reviews, automatisierte Tests und CI/CD Pipelines sicher
 * Übernimm Ownership für Features oder Teilkomponenten - fachlich wie technisch - und bringe aktiv neue Ideen ein.

Technologies:

 * Backend
 * CI/CD
 * Frontend
 * REST
 * React
 * Symfony
 * Fullstack
 * JavaScript
 * MacBook
 * Machine Learning


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