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BACKEND SOFTWARE ENGINEER – VERT.X AND RXJAVA for workrooms.net - the new DropBox and the CELUM MediaHub (m/w)

Location: in the south of Linz or Vienna

You feel comfortable with chaining Observables, while having a distaste for synchronized blocks. If you not only want to work with the state-of-the-art web application stacks but also want to contribute to it and develop it even further than CELUM will be the right place for you to work.

During the last one and a half years, CELUM has created its own full reactive stack, including technologies like Vert.x, RxJava, GraphDB. We have added to this mix our own Service Concept and Graph Data Model abstraction and query API, allowing data to be shown on the front-end while it is still delivered from the database. All of that is packed into Docker containers.


    • Working in an agile and cross-functional team
    • Working on both, the internals of our platform as well as new features for our products.
    • Discussing platform improvement ideas with the architects
    • Optimizing the dataflow from the graph database to the frontend
    • Ongoing improvements of development processes and methods together with your team


        • Completed technical degree with a focus on software (HTL, University or FH)
        • Experience with Java, Vert.x, and RxJava
        • Comprehensive practical experience with OOA/OOD
        • Experience with NoSQL and graph databases are  an advantage
        • Good English skills


          Position: full-time
          Start: as soon as possible

          Direct Superior: Rene Loitzenbauer (CTO)

          Salary Information:
          We offer a starting gross salary of EUR 50,000 per annum (could increase depending on qualifications, experience and seniority).

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