For our new Valencia office, we are looking for:

Senior Java Developer (m/f/d)


  • Excellent knowledge of Java 8+
  • Very good knowledge of SQL, ideally with Oracle and/or PostgreSQL
  • Willingness to work both on the backend and on the frontend
  • Experience with Vaadin, Vue.js or a similar frontend framework
  • Experience writing RESTful APIs
  • Experience with either Spring or Hibernate
  • Good knowledge of SCRUM
  • Doing Code Reviews and unit testing systematically
  • Experience with SonarQube
  • Experience with ELK (Elasticsearch/LogStash/Kibana), Software Security (OWASP) or API Design is a big plus
  • Willingness to work on a large project with legacy code.
  • Fluent English skills, both written and oral
  • Self-organized and well-structured working style


  • Our software LAGO is around for 25 years, but it constantly gets renewed with new technologies and innovations being implemented.
  • We are currently transferring the last remnants of a legacy code from Flash to a modern JavaScript web application. Currently we are using Vaadin, but this is not the last word.
  • We have started transforming our application from a monolith to an API based software.
  • We have some other real innovations on the road ahead, that we’d like you to work on.
  • You and your team will be responsible for this process working closely with our product and sales colleagues.
  • You will work closely with the POs on analyzing the business requirements, suggesting solutions for bringing the most value to our customers.
  • Based on SCRUM you and your team will work on the agreed topics fully autonomously.
  • You will write both unit- and integration tests.
  • You will support our solution engineers solving customer issues.


SPECIAL CORONA CONDITIONS: We care about the health and well-being of our employees as well as their families and society. During the current Covid situation, it is not essential to work in the office. Comosoft supports remote working as well as flexible working hours during extreme situations such as confinement.  

  • We give you the opportunity to unleash your skills by providing you with the trust and free space to do it. Of course, your team is always there to help, if you need it.
  • A competitive salary – for work well done, we pay accordingly
  • If you want to improve your skills and have training courses or go to a conference, we’ll cover them.
  • It is never boring as we have many different customers and areas for you to explore.
  • You’ll have flexible working hours with a generous home-office policy.
  • A casual atmosphere, flat hierarchies and fast decisions.
  • We offer you state of the art hardware.
  • We want you to be healthy, hydrated and awake – thus fruits, water and coffee will be always there for you in the office


We are passionate about people, who love technology! We welcome and support diversity! We cherish when both work, personal life and hobbies merge into a fulfilling work-life-balance for every team member! At Comosoft:

  • You will meet colleagues who like music – from progressive rock to heavy metal, sail, surf, snowboard, play saxophone, manufacture soap, who are hobby astronomers and craft beer sommeliers.
  • We are a calm company, concentrating on getting the work done without the stress of constant busyness.
  • You will work with colleagues always willing to help and support you.
  • We celebrate our team spirit and our company with our annual summer parties.