Java Developer

Join N&N Partners, one of Europe's largest job sites, where our success hinges on two key factors: top-notch products and, above all, a team of passionate and talented individuals.
We help everyone get the job that best fits their life. Whether it is the next step in their career, or a job to pay the bills - we exist to match lifestyles with livelihoods. We play our part by giving people everything they need to find the right job for them in that moment; making jobs work for more people, whatever they do, and however they choose to do it. 

Diversity and inclusion are core values at N&N Partners. We firmly believe that fostering a diverse workforce is essential for our global success. We're dedicated to attracting, developing, and retaining the best talent in the market. We welcome applications from all backgrounds, regardless of gender identity, sexual orientation, disability status, ethnicity, beliefs, age, family or parental status, and any other unique characteristics. If you require reasonable accommodations during the application process or interviews, please inform us.

We are looking for a Java Developer to join our team, based in Brussels, and work on various projects.

Do you want to be part of a company, united by its strong value, you can be proud of and help it grow? Then keep reading!


  • You will work in an agile team, responsible for designing, developing, testing, and maintaining Java applications that meet the needs of our clients (internal & external) and our stakeholders.
  • Write clean, efficient, and well-documented code that follows best practices and standards.
  • Collaborate with other developers, testers, and product owners throughout the software development life cycle.
  • Troubleshoot and debug issues and provide technical support when needed.
  • Research and implement new technologies and tools to improve the performance and functionality of the applications.

  • At least ⚠ projects within Java experience
  • Knowledge about architecture design patterns
  • Strong knowledge about coding principals (SOLID, DRY, KISS, GRASP, Clean Code)
  • Knowledge about CI/CD
  • Knowledge about DDD and TDD
  • Knowledge about cloud computing
  • Knowledge about cloud providers/components (preferred AWS)
  • Strong knowledge about Java (⚠+)
  • Strong knowledge about Spring frameworks
  • Knowledge about async communication – Kafka
  • Strong knowledge about Test Pyramid (Unit, Component, Integration, E⚠E)
  • Critical thinking / challenging status Quo
  • Team player that can mentor other developers in improving their Java skills.

Nice to have:

  • Knowledge about monitoring/alerting setup
  • Practice in system/project design (Event Storming, Story Mapping, C⚠)
  • Knowledge about Enterprise monitoring systems (Datadog, Dynatrace)
  • Basic knowledge about BDD
  • Terraform in practice
  • Event Sourcing / Event Streaming
  • Some #C .Net Experience

At N&N Partners, we are committed to nurturing an inclusive environment where people can truly be themselves, grow to their full potential and feel they belong. We focus on growth through innovation, quality services and qualified staff.

  • Attractive salary package: We offer an attractive salary package which will be additionally combined with lunch vouchers, eco-cheques, and a lot more.
  • Your start at N&N Partners: We want you to feel comfortable from the very beginning and to start networking right away. That's why we always start with an onboarding event lasting several days, during which you get to know your new colleagues, our products, and our culture. After that, it's on to your department - with several weeks of individual training.
  • Your further development: We are growing - and of course we want you to grow with us. We'll support you with targeted training that will help you develop both personally and professionally.
  • Big player with start-up flair: Even though we've grown quite a bit, we haven't lost our relaxed attitude from the early days. In concrete terms, this means that we are on first name terms, have short communication channels, flat hierarchies, and super helpful colleagues.
  • Social Days: Talk is silver, action is gold - which is exactly why all our employees have ⚠ Social Days per year. These can be used flexibly for social and sustainable commitment. And the best thing about it: you don't have to take any vacation time.
  • Vacation days: While we're about vacation. We offer ⚠ legal days of vacation per year and ⚠ Time reduction days. In addition, we always have Christmas and New Year's Eve off.
  • Mobile Office: This is also possible with us! As a rule, we offer you two days of mobile working per week. Please ask directly in the interview what the regulations are for your role.
  • You like fitness? Great! Whether it's in our own fitness studio or by using our' Kickboxing' or ‘Yoga classes ‘you can take the time in the office to work on your fitness.
  • Even more benefits: Christmas party, summer party, team events, incentive trips, pension, and disability insurance (⚠% of gross salary paid by employer, ⚠% employee contribution), Hospital insurance paid fully by the company plus possibility to insure your spouse or children. Flexible reward plan where you will have the possibility to buy non- taxable benefits with a part of your gross salary (bicycle leasing, ICT material, extra holidays, extra health insurance). In addition, variable pay can be paid out through our ‘Warrant' plan. - our list is long, and we are therefore certain that there will be something for you, too!