Back End Developer

Job description

Build, craft, test, laugh, live your life, sleep, repeat.

Make something people love to use. Become part of our team of A-players. Be in charge of your own work and never stop learning. Have a little fun.

Your job

Tell us how to build the best possible product from the ground up with your voice, view, knowledge and expertise. We love our code to be creative, scalable & reusable. Within Tellow you will work on bank and B2B integrations, forecasting, innovative auth solutions, machine learning systems to enhance bookkeeping, and much more.

A bit about our current back end stack and workflow (all to be discussed, team-wide): GCP, Kubernetes, Istio, App Engine, CI & CD via CircleCI, Hashicorp Vault, TensorFlow, Node.js, Kafka, Python, Elasticsearch, Kibana, Opentracing, microservices and API-first, LEMP stack, Java, Spring, REST, etc. We’re currently putting a lot of focus on our data stack and pipeline too: BigQuery, SuperQuery, Looker, CloudML,, Dataproc, etc.



  • Can code. Don’t worry: we speak your language. Coding is a state of mind ;)

  • Are pragmatic, dedicated and think in solutions.

  • Care about quality. If it’s not the best, is it worth building?

  • Take initiative and are always keen to level up your skills.

  • Have excellent English verbal and written communication skills.


  • Great base salary.

  • Working in a start-up atmosphere: lots of autonomy, a young and driven team and a fun office environment.

  • Lunch included! Tell us what you’re missing, we’ll order it.

  • 26 sunny or snowy holidays.

  • A personal learning budget, extensive mentoring and focus on personal development.

  • Commuting allowance.

  • Option to join pension scheme.

  • Team drinks and trips abroad when we reach our targets.

  • Working in a beautiful office in the heart of Utrecht (at the station in the WTC).

  • Proper equipment (MacBook Pro and LG Ultrawide monitor).

  • An open working atmosphere, in which you can give and receive honest feedback.

Get in touch!

Want to chat about this? Feel free to get in touch with our HR Officer, Floran van der Harst.

Or if you’re just curious to experience the vibe here at Tellow HQ, you’re always welcome to join us during one of our daily team lunches, just invite yourself!