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Senior Backend Developer (m/f/d)

PHP, Symfony, Redis, MongoDB and Co. are your world? Then apply now as Senior Backend Developer (m/f/d) at synQup.

Permanent position
Start date: By arrangement
Full-time or part-time


synQup is the ideal solution as a central integration platform for data and processes to drive the digital transformation of medium-sized and large companies. Our highly flexible interface solution enables the seamless connection of webshops, ERP, CRM, PIM, CMS, MAM and many other applications from the broad IT system landscape. The modular software ensures high reusability and flexible extensibility of the individual modules, which makes the use of synQup very economical for our customers.


At synQup you will work with the most modern technologies. Our application consists of advanced and interesting components such as PHP8, Symfony, Redis, MongoDB, RabbitMQ, VueJS and Quasar. Your tasks will include:

  • Design and implementation of high performance and scalable import and export modules.
  • Interface and data-driven programming
  • Interaction with third party systems and exchange formats
  • Further development of our Symfony base application with focus on reusability and sustainable product development
  • Experimental tasks (prototypes, PoCs, etc.)

Also in the areas of DevOps and testing there are always interesting tasks with the latest technologies. It would be conceivable, for example, that you create more modules / integrations, or make sure that the core is even more enjoyable for future developers and users. 


  • A successfully completed degree in computer science or comparable training
  • At least 5 years of professional experience in backend development
  • Expertise in Symfony or comparable PHP frameworks (service container and composer must not be foreign words)
  • Concrete experience with Symfony is an advantage (e.g. in caching, Doctrine DBAL/ORM/ODM, in other third-party packages such as api-platform)
  • Experience with distributed systems and message queues
  • Experience with concepts of parallelization (including: locking, fan-out, and fan-in or synchronization)
  • User experience Docker (you should be able to help yourself if a container suddenly fails to start or two containers can’t talk to each other)
  • A passion for clean coding and continuous development of your skills
  • Good knowledge of German and English (at least B1 and C1, respectively), both written and spoken


  • Exciting and challenging projects for well-known companies
  • A technically well-equipped workplace (including the operating system of your choice)
  • Flexible choice of your location (Langgöns, Frankfurt, Würzburg, Heilbronn)
  • Flexible work models with home office, flextime and overtime compensation
  • Personal development opportunities with further training and promotion prospects
  • Annual profit sharing
  • Company pension plan
  • Capital-forming benefits
  • Free drinks and fruit
  • Regular team and company events
  • Job bike

If not all knowledge applies, apply anyway, with internal training and workshops we achieve your expertise.

    Application form

    Sounds interesting? Send us your application and let's write your success story together with synQup.

    Please send us your resume (CV) as well as a cover letter and relevant references. [Format: PDF | max. size: 10 MB]

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