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Java developer

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Vp-systeme Gmbh

Job

  • Level
    Senior
  • Job Field
    Back End
  • Employment Type
    Full Time
  • Contract Type
    Freelancer
  • Location
    Dusseldorf
  • Working Model
    Hybrid, Onsite

    • Job Summary

    In this role, you analyze specifications, create requirement sheets for interfaces, implement Java applications including web services and continuous integration, while maintaining and documenting the software.

    Job Technologies

    Your role in the team

    • Analysis of requirements specifications and creation of specifications for interface design.
    • Review of technical specifications of the target architecture for feasibility, implementation proposals.
    • Implementation of the application in the Java environment, creation and maintenance of web services.
    • Support of the development process: configuration management, build scripts/code generation, continuous integration, error management, testing procedures/QA.
    • Maintenance and servicing of existing software components.
    • Creation of documentation (specifications, installation, interface documentation).
    • Integration of the application into the existing production environment.

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    Our expectations of you

    Education

    • Completed university degree in Computer Science or a comparable qualification (e.g., apprenticeship as an IT specialist plus several years of relevant experience).

    Qualifications

    • Minimum of 3 years or moderate complexity in SQL and JPQL.
    • Solid knowledge of SOAP and REST-based web services on a Java platform.
    • Knowledge of object-oriented modeling and programming methods.
    • Very good spoken and written German skills.
    • All time periods must be verifiable through project references.

    Experience

    • 5 years of programming experience in Java.
    • Project experience in server-side JEE/Spring Boot applications: Java EE/Jakarta EE 8/ Spring Boot, EJB 3.x, JAX-WS, JPA; knowledge based on Java SE 17 or higher.
    • Project experience and solid knowledge of JBoss EAP (minimum 8.0); Wildfly from version 28 onwards is considered equivalent.
    • Minimum of 3 years of project experience with current Oracle databases (from Oracle 19 onwards).
    • Experience with XML data structures.
    • Minimum of 3 years of experience with Eclipse.
    • Practical experience with Gradle.
    • Practical experience with GIT.
    • Experience in team collaboration with at least 5 people.

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    What we offer

    • Project start: 04.01.2027, duration until 31.12.2027 with an option for annual extension.
    • Planned scope: 220 PT for the period from 04/01/2027 to 12/31/2027.
    • Mostly remote; typically no more than 1 day on-site per month.
    • Only persons subject to pension and social security contributions can be employed.
    • We offer freelancers a project-based permanent position (no employee leasing).

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    Topics You Will Work On

    Job Locations

    • Location Dusseldorf

      Nordrhein-Westfalen

      Germany

    About Your Employer

    Vp-systeme Gmbh

    Vp-systeme Gmbh

    Als zuverlässiger Premium-Dienstleister mit der Erfahrung aus über zehn Jahren Softwareentwicklung und der Zusammenarbeit mit nennenswerten Großkunden sind wir prädestiniert für langfristige Partnerschaften und dem Lösen komplexer Problemstellungen.

    Description

  • Company Type
    Established Company
  • Working Model
    Full Remote, Hybrid, Onsite
  • Industry
    Internet, IT, Telecommunication
    • Logo Vp-systeme Gmbh

    Java developer

    Vp-systeme Gmbh
    Location
    Dusseldorf
    Working Model
    Hybrid, Onsite
    Diversity
    Open for all genders

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