Rails Hero / SI Labs GmbH

Rails Hero / SI Labs GmbH
SI Labs GmbH
Berlin Mitte
jobs@si-labs.com oder vorbei kommen

A full stack developer at Service Innovation Labs is native to Ruby on Rails, is fluent with Ruby as much as JavaScript and HTML/CSS, and knows how to write and document API.

You should be confident developing full stack projects from scratch, testing them and guaranteeing a high level of quality, implementing your own ideas to create great services.


  • Conceptualize and develop projects going into production or prototypes to amaze our clients.
  • Work hand in hand with our multidisciplinary team and support our app developers.
  • Find creative solutions for various challenges and work self-responsible.
  • Incorporate the needs of our clients, their costumers, and your own ideas.


  • Confident writing a Rails app from the model to the view - fast in front-end (HTML/CSS, JavaScript) as well as backend (Ruby)
  • Aware of the importance of testing; you know the difference between unit testing and integration testing; probably you have used Capybara (or Selenium).
  • You have written JSON API to be consumed by mobile apps.
  • Background working in agile software development environments as a freelancer or employee.
  • Eager to work in a multidisciplinary team with tight collaboration to our design and business team.
  • Excited to learn and develop together with us at Service Innovation Labs.
  • Fluent in English; German is a big plus but not a must.


  • You will collaborate with experienced and enthusiastic service design experts, business design nerds and service developer geeks.
  • You will have responsibilities along the entire process from exploration to implementation while supporting multinational corporations to innovate.
  • Flat hierarchies and high degree of self-paced responsibility.
  • Room for experiments and deep dives into new waters.
  • You will have a great work-life balance - We will support your development and we will encourage you to do your own projects!
  • We believe in investing in people. That's why we actively support further education and training with additional free time and financial support (paid educational leave).


Please submit:

  • Cover letter indicating your earliest starting date
  • CV, certificates and employer's reference letters
  • Summary of projects done in the past (please indicate your role, responsibility and contribution to each of your projects).

Your salary expectations

We are looking forward to your application at: jobs@si-labs.com Tel. +49 (0)30 57 70 110-46

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