Full Stack / Front end / Back end Developer

Aachen, Germany
Software / Web Development

About the company

S O NAH is paving the way for sustainice urbanization.

Why “sustainice”? This is a modern-day mix of sustainable and nice. We know that rapid urbanization is one of the megatrends, shaping and affecting our future life. Along with the increase of population in urban areas, problems such as emissions, traffic collapse, housing shortage and littering arise.

We are a medium-sized startup, with a diverse set of around 20 people. As a company, we highly value our friendly, yet professional work atmosphere, to which all of our employees contribute. We are looking forward to your ideas to make it even better for everyone! In one of the pictures, we have one of our bi-monthly brunches where we share our recent achievements and challenges. We provide a sustainable solution for 99 problems instead of 99 sensors for 99 problems. These sensors solve everyday traffic problems for the citizens and simplify complex decision-making for city authorities.

About the role

Would you describe yourself as a skilled developer who can work comfortably with both frontend and backend coding languages? Have you got experience with developing user-friendly client-facing software? And, are you able to troubleshoot bugs or implement improvements to our server-side architecture? If you’ve answered yes, yes and yes, then we’d love to hear from you.

We’re searching for a skilled Full Stack Developer, who’ll play a critical role in developing our software and implementing a UX-friendly design in collaboration with our designers and programmers. You'll be working primarily on-site in our Office in Aachen and you’ll be working to develop clean and reproducible code, as well as testing and debugging your work.


  • Front-End and Back-End tasks
  • Future leadership role
  • Improve and grow customer-facing products
  • Build, test, deploy and improve new products


  • Experienced with programming
  • Interested in UI/UX
  • Not afraid of databases
  • Likes to learn
  • Able to self-organize- Wants to grow into a leadership role

Technologies we use

  • Typescript
  • Angular
  • Kotlin
  • Java
  • CSS
  • HTML
  • MySQL
  • Docker
  • Linux
  • Bash
  • GraphQL


  • 28 days of paid vacation.
  • Freedom to approach topics in your own way.
  • Opportunity to excel and advance quickly.
  • Option of joining virtual share ownership program

Sounds good?

If you think that you and S O NAH are a good fit, then we would be delighted if you could provide us with the following:

  • Your CV (mandatory)
  • A link to your Github profile or some other place where you showcase some of your coding projects
  • A short letter that briefly answers the following questions (max 500 words each):

1. What are your reasons for applying to this position?

2. What makes you the ideal fit for S O NAH?

3. Can you briefly describe your worst and your best experiences in full stack development?

4. When do you want to start working?

Didn’t find what you were looking for?
Updated: 1 month ago
Job ID: 6448445
About SONAH GmbH
11-50 employees
Information Technology and Services
Aachen, Deutschland
We are a medium-sized startup based in Germany, that sells data generated by our own sensors in a mostly B2B or B2G/B2A context. S O NAH surfs the megatrend of urbanization by creating a digital twin of cities. Through SONAH’s AI enabled detection technology and digital twin services, cities can tap into thousands of usecases. The foundation for these services is the privacy-protecting data generation anchored in our company's core philosophy.

2 more

Aachen, Deutschland
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Jonas Zagatta
Jonas Zagatta
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