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Fullstack Entwickler mit PHP-Backend – Symfony, RabbitMQ (m/w/d)

Rockstardevelopers GmbH
Contract type
Ongoing
Work mode
Remote · Germany
Experience
Mid-level · 3+ years

Job description

Backend-focused software developer working in client projects for large enterprises, mainly with PHP/Symfony, APIs and messaging, mostly remote with occasional on-site days.

At a glance

Employment
Full-time · Employee (employment agreement)
Work mode
Remote · Germany
Languages
German – C1

What you'll do

  • Work in customer projects at large companies, embedded in their teams
  • Backend development with PHP, preferably Symfony
  • Design REST APIs and document them with OpenAPI
  • Connect systems via messaging: RabbitMQ, Symfony Messenger or Kafka
  • Build and maintain GitLab pipelines from build to deployment
  • Generate, review and refactor code with Claude Code, Copilot or Cursor
  • Coordinate with Product Owners, frontend and operations
  • Support frontend work when the feature requires it

What we're looking for

  • At least three years of professional experience as a developer after training or studies
  • PHP, at least three years productively in the last five years, preferably with Symfony (Laravel also acceptable)
  • REST API design including OpenAPI
  • CI/CD with GitLab pipelines
  • Message-based architecture with RabbitMQ or comparable (Symfony Messenger on AMQP, Kafka)
  • Automated tests with PHPUnit, plus integration and end-to-end tests
  • Must be able to work productively with AI tools like Claude Code, Copilot, Cursor
  • German at C1 level or better, as project language is German

Nice to have

  • LLM integration in applications (RAG, tool calling, agents), also from a side project
  • Pimcore 11 or another CMS
  • Data modeling with MariaDB or MySQL
  • TypeScript with Vue or React
  • AWS
  • Real-time interfaces and data pipelines

Benefits

  • Mostly remote, with office if you like
  • MacBook (unless the client provides their own hardware)
  • Various customers, various projects
  • The founders are your direct contacts
  • Internal upskilling in AI development

How to get hired

  1. 1CV is enough, no cover letter needed
  2. 2Short video question round (2×90 seconds), then feedback within a few days

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About Rockstardevelopers GmbH

Software developer with experience from hundreds of individual projects for enterprise and mid-sized clients

Founded in 2015 in Mannheim, with further offices in Stuttgart and Munich; builds custom software for enterprise and mid-sized clients.

Key facts

  • 2015
  • Mannheim, Germany
  • Short paths, honest feedback, no political games
  • No hierarchy levels between you and the people making decisions
  • Clients staff these projects almost exclusively with permanent employees

What they value

  • Short paths, honest feedback, no political games