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# Senior Fullstack Developer

- **Company:** Instaffo GmbH
- **Location:** Berlin, Germany
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), PHP (Programming Language), Databases, Laravel, PostgreSQL, MongoDB, MySQL, Object-Oriented Software Development, Software Engineering, Symfony, Web Applications, Apache Cassandra, AngularJS, Front End Software Development
- **Published:** September 17, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=5c6a90a896f8b146

## About the Role

* Mehrjährige Erfahrung in der Softwareentwicklung, speziell für Web-Anwendungen
 * Fundierte Kenntnisse in PHP (objektorientiert) und modernen Frameworks (Symfony, Laravel, Laminas)
 * Erfahrung mit verteilten Datenbanksystemen (wie MySQL, PostgreSQL, YugabyteDB, MongoDB, Apache Cassandra)
 * Kenntnisse in JavaScript & Angular für performante Frontend
 * Deutsch C1, Englisch fließend

## Description

* Entwicklung und Optimierung unserer internen Systeme & Webanwendungen mit PHP
 * Technische Verantwortung für Architekturentscheidungen und Code-Qualität in enger Zusammenarbeit mit Produktmanagement und Geschäftsleitung
 * Aufbau und Weiterentwicklung von hochverfügbaren, skalierbaren und event-gesteuerten Systemen
 * Design und Optimierung bestehender Datenbanken hinsichtlich Performance, Skalierbarkeit und Sicherheit


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