KPN - Fullstack - Java Developer (Freelance/ZZP)

Posted Dec 7, 2021
Project ID: 12-24999
Amsterdam, -
6 months
(Dec 13, 2021 - Jun 11, 2022)
36 hrs/week
Payrate range
70 - 90 €/hr

KPN Technium is the department where all our IT development and operations takes place. The ambition of Technium is to make KPN a highly simplified company which is ready to offer customers real effective IT solutions. We do this by innovating from a customer perspective, keeping things very simple and delivering them incremental (via Agile / SCRUM).


We put a lot of energy into learning and sharing knowledge so that you are always up to date with the latest developments and able to apply them for our users.


You are part of a DevOps team that works according to the Scrum methodology and participates as product developer. It is your responsibility to take the apps to the next level and innovate cutting edge new functionalities! Several DevOps teams within and outside KPN Technium work closely together to achieve this goal.

For feature teams working on fiber rollout we are looking for a passionate full stack developer that will help us make this vision possible.


We are looking for a person who is flexible, eager and loves the challenge of diving into the world of complexity and working on the top priority of the KPN strategy. As a team member, you will be responsible with your DevOps team for designing and implementing product requirements. You will work closely with the product owner, other teams and business stakeholders.


The team you will be working in, is part of a larger tribe where multiple teams build and maintain the KPN Network supporting systems within a mainly Java oriented platform. 


This is what you will be doing:

  • As we are are a DevOPS team you are also expected to participate in Stand By duty for handling incidents.
  • Develop and maintain new and existing functionalities (micro services) for engineers.
  • Work with team members on complex and innovative features
  • Play an active role in refining the feature to be released by the team
  • Ensure the quality of the developments by means of unit test and contribute to integration, automated testing etc.
  • Helps to develop and build the vision of KPN Network NL
  • Be part of a larger tribe family and learn from many experts.


Have knowledge of most of the mentioned qualifications and absolute motivation for applications and used technology:

  • Java 11 expert
  • Knowledge of Flutter, SOAP. REST, Apache Wicket, AngularJS
  • Minimal 5 year experience as Java developer in an environment with critical applications requiring 99,9% uptime
  • Minimal 5 year experience with the Spring Framework for Java and have worked with versions 3, 4 and 5, Spring Boot 1 and 2.


Good understanding of:

  • Cloud technology
  • Database technology, SQL
  • CI/CD
  • Reactive middleware patterns
  • Certification AWS admin is a pre


Behavioral & Leadership Competenties

  • Must be a team player.
  • Full Stack Java is the way to develop.
  • Understands the SCRUM Values.
  • Pro-active and ‘can do’ mentality. Helps the team to further develop and improve, e.g. for DEVOPS processes
  • Great verbal and written communication skills (English (must) and Dutch pré).
  • Pragmatic but does not lose sight of long term goals. 
  • Great analytical skills.
  • Energetic!

Similar projects

+ Search all projects