Back-end Developer


About this job opening

Are you a developer that likes to focus more on API’s and backends? Or maybe you like writing tools and daemons? Do you want to proces huge datasets to generate interesting statistics? Then you’re probably the person we’re looking for.

This is what you’ll be doing

We’re looking for someone who likes to:

  • Really get into the nitty gritty.
  • Determine the best way to deploy an application.
  • Find the best way to design a scalable application or API.
  • Create the best tools to help your colleagues.
  • Integrate very different systems.
  • Play with new technologies and open source software.

You’ll be working with our other developers, designers and operators. You will be the glue between front-end and back-end, and sometimes even create one or both.

Skills and tools

  • You get uncomfortable when encountering code without proper version control. Git is a must, some Subversion is also nice.
  • You have a preferred language (or two), but aren’t opposed to learning another. Python is a big must, PHP, Javascript and Ruby are also nice.
  • You can use command line tools, and maybe even prefer them.
  • You like Unix, being able to explain the Unix mindset is a big plus.
  • You know how to structure data, relationally or not, with and without a framework. PostgreSQL and MySQL are a must, Elasticsearch, Lucene, or other NoSQL software are a pro.

You fit this profile

  • Experience working in small, specialized teams.
  • Experience working with Agile methods is a big plus.
  • A willingness to learn about the nitty-gritty technical details and deployment of applications
  • Mastery of both the Dutch and English language (spoken and written)

Even if you aren’t able to check off all of the points above, don’t hesitate to apply anyway. If you have online open-source code available, don’t forget to show us!

All applicants are required to be current residents of The Netherlands and be in possession of a valid working permit.

This is what we offer you

During your daily work, you’ll enjoy a great team of colleagues, our beautiful office in the middle of the historic city center of Alkmaar and a fantastic roof terrace (with Ethernet and Wi-Fi) for when it’s nice and sunny. Your desk and workstation are completely yours to set-up and configure and you’ll get your own VMware server for any personal hobbies and projects. At least once every year, we have a fun company outing with the entire staff. Our organization is led by a board of three directors and is not influenced by external investors and stakeholders.

On Fridays, our development team reserves time for people to be able to work on their own projects. The only condition is that this project is one that could offer additional value to Cyso as a company.

For new employees, we offer a one-year contract (after a trial period of one month). Find out more about our benefits, working conditions and company culture here.


Send your motivation and resume to

Do you want to know more? Contact Sterre Ouwens at +31 (0)72 7513400.

Acquisition regarding this vacancy is not appreciated.
Call me back