For an international institution based in The Hague (Den Haag, Netherlands), we are urgently looking for a Freelance Senior Java Developer. As Senior Java Developer, you will become part of a bigger service, composed by Project Managers, Business Analyst, Solution Architects and Testers to reinforce this growing team.
Candidates need to be fluent in English. Workpermit is required. This position is also open for employees, who would like to commit long-term.

Tasks and Responsibilities:

  • Development and maintenance of software applications;
  • Development and integration of technological components;
  • Implementation of user requirements;
  • Prototyping;
  • Elaboration of test programs;
  • Integration with other applications;
  • Writing of technical documentation;
  • Assistance with deployment and configuration of the system;
  • Participation in meetings with the project teams;


  • Bachelor or Master degree;
  • + 5 years of Java Development;
  • Good knowledge of application development environments;
  • Good knowledge of the design and development of web components (web-based, mobile);
  • Good knowledge of the design and development of back-end components (REST APIs, integrations, micro-services);
  • Knowledge about responsive, multi-device development (e.g. desktop, laptop, tablet, smartphone);
  • Knowledge of software development methodologies (e.g. AGILE);
  • Knowledge of relational, no-sql and graph databases;
  • Fluent in English;

Please send your resume and motivation to resume@all-european-careers.com