Medior Java Engineer

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Medior Java Engineer

We are looking for a Medior Java Engineer with web experience to join the Fonk Amsterdam team. Fonk Amsterdam is a digital product studio fuelled by people, inspired by dreams. We craft products and build companies that make life a little bit better.


About Fonk Amsterdam

Fonk.Amsterdam is an international and creative team of design driven product people, all working towards the goal of improving everyday life. We are on a mission to better the world with our creativity, expertise and an entrepreneurial mentality. We do this by making digital products for amazing partners ranging from startups to corporations, and from libraries to banks. Big and small, we love them all. 

Job description

Fonk is looking for a skilled Java & Web Engineer that is passionate about creating robust, scalable, and secure systems. You will need good software engineering skills, solid interpersonal communication, and be able to give feedback on technical designs. You will be responsible for the technical design and development of our online services. You will need to collaborate with our top-notch designers and frontend developers. 


  • Integration of user-facing elements developed by a frontend developers with server side logic

  • Building solid and reusable code

  • Be able to optimise of the application for maximum speed and scalability

  • Design and implementation of data storage solutions



  • Proficient knowledge of Java 7+ with Spring (Boot)
  • Understand accessibility and security compliant user authentication and authorisation between multiple systems, servers, and environments
  • Management of hosting environment, including database administration (e.g. MongoDB, SQL, MySQL, Postgres)
  • Deployment, scaling, and load balancing (e.g. Docker)
  • Data migration, transformation, and scripting
  • Creating database schemas that represent and support business processes
  • Implementing unit tests
  • Basic understanding of frontend technologies and platforms, such as JavaScript, HTML5, and CSS3
  • Ability to communicate in a professional way with our clients

Skills that are a plus: 

  • NodeJS, python, ruby or any other (professional) web language

  • Ability (and/or ambition) to lead a team 
  • Basic cryptography and digital signatures
  • Working with Netflix OSS and Kubernetes
  • Setup and administration of backups
  • MongoDB
  • GitLab CI
  • Maven
  • Gradle

What we offer

  • A full-time (or part-time) job
  • A chance to make the world a better place with projects that matter
  • An international team of talented and fun individuals in a creatively stimulating and inspiring environment
  • The best coffee of Amsterdam in a beautiful historical office near Westerpark

We highly value diversity at our company so we encourage applicants with diverse backgrounds and of all walks of life to apply. 

If you have questions please contact

Selected Projects: 

Mijn Palthe

For Palthe we developed, built and launched a 5-star laundry delivery service

Hoi Dokter

Hoi Dokter is one of our own start-ups. It's an iPad app that helps families with the difficult situation of a hospital visit with their small child.


For ING we developed a high-end personal assistant for ING Private Banking customers.

Healthy Workers 

We are co-founder of Healthy Workers, a company that makes employee well-being measurable.

A peak into the office