Medior/Senior Backend Developer

  • Development
  • Utrecht, Netherlands

Medior/Senior Backend Developer

Job description

Are you ambitious, precise and do you want contribute to building the best AI drive platform in the customer service industry? Then be sure to read on!

Watermelon is looking for a new Medior/Senior Backend Developer. New talent to add to our development team. As a Backend Developer, you have key responsibilities; you make sure our platform stays stable and gets continuously optimised. You develop new features, manage integrations with other platforms and work with the team to create an efficient and scalable architecture.

Watermelon is growing and that is wat motivates you, because you are standing at the beginning of our scale-up fase as a company🚀  With your development skills our platform continuously improves, and that is key for our growth 🙌🏼  So the only question that remains is: ARE YOU READY, TO BECOME A MELON?🍉

Technology stack

Our backend consists of many different parts that together make up a complex system. The major parts of the tech stack are:
• API (microservice architecture, Golang);
• Chatbot (AI, Tensorflow, Python);
• Legacy API (Monolith, PHP)Our backend services are hosted on Google Cloud.

We use many cloud-native services like Kubernetes Engine, App Engine, Cloud Functions, Cloud SQL, Memorystore, as well as many open source projects like Swagger, Redis, MySQL, Elasticsearch. To ensure our code quality, we valide it using Code Climate. For error reporting we use Sentry. We don’t expect you to have experience with these tools and services listed here. What we find much more important is that you are eager to learn and then the development team will help you where needed⚡️. You will be responsible for:

  • Maintaining and improving our backend systems and building new scalable (micro)services from scratch;
  • Improving our system architecture by actively contributing ideas and execute them;
  • Keeping up with the latest development trends so we can optimise our working methods.

About us 🍉

Watermelon is where conversations take place. We make customer service better, faster and more fun! Day in, day out we do our best to improve our software and turn the customer service industry upside down! Working at Watermelon is a challenge, every day is different. Which also means that you have lots of opportunities to learn something new. Are you looking for an organisaties where you can make real impact and where your input is highly valued? Don't hesitate any longer, apply at Watermelon and let's work together to create Europe's best AI driven customer service tool!


  • A university degree (HBO or higher, including foreign degrees) with a major in Computer Science/Informatics
  • 3-4 years working experience (minimum)
  • Good technical communication skills;
  • You greatly value ‘clean code’;
  • Knowledge/experience in Go;
  • Knowledge/experience of Google Cloud Platform is a plus;
  • Knowledge/experience in Laravel is a plus;
  • Knowledge/experience in the Scrum work method is a plus;
  • You are flexible and able to switch priorities rapidly;
  • You are stress-resistant;
  • You see the potential of Watermelon!

What’s in it for you?

  • You enter level 1 of the medior position, here you will be classified between € 2,300 and € 3,100 gross per month (based on full-time 40 hours), based on your experience and growth perspective, in level 2 you can continue to grow up to € 3,400 gross per month;
  • Attractive bonus system with an individual and team component;
  • 25 days off per year on a full-time basis;
  • 8% holiday pay;
  • Flexible working hours with the option to work from home;
  • Lunch and the possibility to have breakfast at the office (for a minimal fee);
  • NS business card or travel allowance;
  • You work with a young and ambitious team, in a hip and lively office in Utrecht;
  • Freedom and responsibility to perform your job as well as possible;
  • The opportunity to actively contribute to a fast-growing start-up with international ambitions.

Are you the winner we are looking for? Then quickly press the: "Apply for this job" button ✅

PS: Dear recruiters, we don't need any help at this point. If we need you, we'll get in touch😄