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Senior Backend Developer


Location: Amsterdam or The Hague, The Netherlands

Are you that excellent Senior Backend Developer who wants to make a difference working on our innovative AI based cognitive content management platform using the latest technology and techniques? We are Onior with offices in The Hague and Amsterdam.

As a Senior Java Developer, you are strong in finding creative solutions using new techniques and frameworks, and together with the team, you can make the right technical choices.

You will become part of our enterprise software product team. This product team consists of Scrum teams featuring multiple disciplines like Product Owner, Software Architect, Test Automation Specialists, DevOps engineers, Frontend Developers, Backend Developers collaborating to offer the best product for our clients.

You are a sparring partner for the Product Owner and decide on the possible interpretation of the sprints and then take the responsibility to realize this efficiently, together with your team members. You are responsible for improving the quality of our software products.

You have

  • At least 5 years of work experience as a Java Developer with expertise in Java 8, Spring framework, SpringBoot, REST, JSON, XML, Web Services;
  • Experience with Microservices Architecture and developing microservices;
  • Experience with SQL and NoSQL databases, ActiveMQ, Kafka, Docker, and Kubernetes;
  • Preferably you have experience with Elasticsearch;
  • Hands-on experience in working in Scrum teams;
  • Passionate about writing good quality code and implementing creative solutions;
  • Business sense: you balance technical perfection with business needs and priority;
  • Preferably you have experience in product development;
  • Good communication and collaboration skills;
  • Based in The Netherlands.

About Onior and Doculayer

Our journey started when Onior was founded in 2008, backed by years of experience and a team of specialists from the field who were specialised in delivering Enterprise Content Management (ECM) solutions with a strong focus on usability. Solutions that solve real business challenges and provide the end user with great applications to support their daily routine - from digital courts to in-store promotions and digital assets, from HRM solutions to legal contract discovery. Working with enterprise clients across many industries made us realize, however, that traditional ECM solutions were not able to keep up with fast-changing business requirements and an even stronger need to innovate.

Doculayer is our cognitive content management solution powered by AI technologies such as natural language processing, machine learning, deep learning, image recognition. Doculayer offers smart solutions for - amongst others - personnel files, contract management, legal discovery, digital archiving. Doculayer’s rich cognitive capabilities help organizations save dramatically on labour by fully automating time-consuming tasks, such as identifying metadata for classification and content tagging. It also improves the quality of work by intelligently enriching your content and discovering relations between content items and entities within the content itself. Doculayer ensures full control and the ability to find and manage information you need easier than ever.

We offer?

      • A challenging and responsible position within an ambitious and growing (international) organization;
      • Working on innovative software product leveraging state of the art technologies;
      • A pleasant work environment where you can take ownership, share ideas and launch new initiatives;
      • Freedom in planning your work;
      • A good salary that meets your background and work experience;
      • 26 holidays per annum (based on full-time FTE);
      • A study budget for personal development.


If you are interested in this role, please apply by sending your resume (CV) and motivation to

Please note: this is a permanent position, freelance is not an option.
Acquisition based on this vacancy is not appreciated.