Haskell Software Engineer

Who are we?

Who are we?

We are a young and fast-growing start-up from Utrecht focusing on the e-commerce and online marketing sectors. Channable was founded 7 years ago and developed into a company with an international team of around 150 young professionals. While you can still benefit from the start-up vibe, working at Channable also means being part of a professional company with a highly skilled Development team.  

Job description

What will your role be?

We are looking for a talented Software Engineer to join our infrastructure team, located in Utrecht. You will be working (onsite) on the backend of a complex distributed web application consisting of a number of different services, written in Haskell and Python.

In this position, you will be responsible for the design, development, and maintenance of new and old features in our application. You will also be working on scaling our Haskell applications to the next level, where we can handle another order of magnitude increase in throughput while keeping our app fast and responsive. You will be a part of our development team and work closely together with the other team members. We value the readability, maintainability, and testability of our codebase and look for someone who shares these values.

If you would like to get a feeling of how we work together and what our code looks like you can take a look at some of our open-source work at https://github.com/channable.

You can also take a look at our tech blog at https://tech.channable.com.

Our Stack includes: Haskell, Python, PostgreSQL, Redis, Ansible, Terraform, Ember.js, Prometheus

And we run all of our infrastructure on Google Cloud Platform.


  • Design, development, and testing of new product features;
  • Collaborate with and review PRs of other team members;
  • Improve the reliability and robustness of our application;
  • Work on scalability and performance improvements;
  • Work together with our product and DevOps teams on requirements and issues.


  • Excellent programming skills in Haskell or similar typed functional language;
  • Experience (not necessarily professional) building a practical program in Haskell;
  • Experience with web development, web technologies and APIs;
  • Familiarity with SQL and relational databases, preferably Postgres;
  • Good working knowledge of Linux, git, and the command-line;
  • Committed to high engineering standards;
  • Living in The Netherlands (or willing to relocate) and in possession of a work permit (if you’re a non-EU citizen).

Nice to have

  • Knowledge of Haskell libraries like warp, conduit, async, servant, aeson, compact;
  • Familiar with Python or other dynamic languages;
  • Experience in tuning and scaling a big application;
  • Having worked with distributed systems before;
  • Interested in automation and fast builds.

What do we offer?

  • Challenging full-time function with space for personal initiative;
  • Competitive salary and a clear career structure with distinct levels;
  • Career opportunities within Channable;
  • Excellent training and onboarding to get to know the tool, our processes, and your colleagues. After that, you’ll get the trust and responsibility to show what you got. Your buddy will support you throughout the whole onboarding;
  • Working for a fast-growing company with a young and ambitious team;
  • Awesome office in the city center of Utrecht.

"Working at Channable feels like having dinner at a fancy restaurant with family. A professional, yet cozy setting, where people know each other well. There is trust, respect, and appreciation. There's always a helping hand when you need one and your voice never goes unheard. This work atmosphere enables me to deliver beautiful, functional features that I can truly be proud of."

- Jotti, Developer at Channable.


Are you the person we’re looking for? Please apply by clicking on the "apply now" button below. You can send your application in Dutch or English. If you convince us, you will be invited for an interview in our office in Utrecht, or through Google Hangouts if you don’t live in the area (yet). Your starting date is flexible, but preferably as soon as possible!

Do you have any questions about this vacancy? Please contact Mart (mart.vreeswijk@channable.com).

Want to know more about our team and culture? Have a look at our Instagram page, the page about Channable's culture, or read Glassdoor how our team thinks about working with us.

Contact by job agencies and recruiters will not be appreciated. Each recruiter or headhunter who approaches us agrees with a donation of € 250,- for Make-A-Wish.