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Senior Backend Developer - Python & Java

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REWE Group Österreich

Job

  • Level
    Senior
  • Job Field
    Data, Back End
  • Employment Type
    Full Time
  • Contract Type
    Permanent employment
  • Salary
    from 50.000 € Gross/Year
  • Location
    Vienna
  • Working Model
    Hybrid, Onsite

    • Job Summary

    In this role, you will develop robust backend systems using Java and Python, design APIs, and process large datasets to support CRM and analytics. Your solutions will be scalable and future-proof.

    Job Technologies

    Your role in the team

    • As the IT organization of REWE International, we work with more than 700 colleagues to build innovative IT products and services for our business units in Austria and across international markets--setting the pace for modern retail.
    • We are looking for a Java Backend / Python Developer who enjoys building robust, scalable backend systems and working with complex, data-driven platforms.
    • In this role, you will design and implement high-quality services and APIs, and work with a broad range of business and customer-related data across different domains.
    • Using Java and Python, you will develop backend services, process and enrich larger datasets, and contribute to a platform that supports CRM, customer analytics, and operational use cases, as well as spatial and location-related scenarios where relevant.
    • A key focus is to design solutions that are scalable, reusable, and well prepared for future analytics and AI use cases.
    • You will collaborate closely with stakeholders across IT and business and support requirements engineering where needed.
    • You will report directly to the CPO and work in a high-ownership setup without a dedicated team, where initiative, technical excellence, and hands-on problem solving make a real difference.
    • You support the full software development lifecycle -- from designing and modeling required components to implementing and customizing software solutions.
    • You build high-performing, scalable backend services using Java (Spring Boot) and/or Python, ensuring technical robustness and long-term maintainability.
    • Through thoughtful design and continuous optimization, you ensure our IT solutions are future-proof and ready for long-term, international use.
    • Together with your colleagues, you align code architecture and API/interface contracts across teams and products, and document solutions in a clear and traceable way.
    • You critically evaluate technical decisions and provide constructive feedback on their impact on structure, performance, reliability, and business/system logic.
    • You actively contribute to evolving our engineering and quality standards -- from clean code practices and automated testing to CI/CD and delivery pipelines.
    • Working closely with your team, you help drive the technical modernization of our product and platform.

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    Our expectations of you

    Education

    • You have a solid technical education (HTL, University of Applied Sciences, or University degree) and minimum 3 years of professional experience in backend development.

    Qualifications

    • Strong proficiency in modern Java (Spring Boot) and building robust, maintainable microservices.
    • You work confidently with RESTful APIs (design, implementation, versioning) and understand how to build stable interface contracts in distributed systems.
    • Foundational understanding of event-driven architectures and platform tools (e.g., Kafka, Docker, Kubernetes, GitLab, Liquibase), with a strong motivation to deepen your expertise.
    • You bring practical Python skills for data processing and automation, such as building data pipelines, transforming datasets, and developing ETL or backend support scripts.
    • You enjoy working in agile teams (Scrum or Kanban) and maintain an open, constructive approach to learning from mistakes.
    • Analytical and self-driven, with a strong ability to collaborate and deliver production-ready solutions.
    • Minimum Level B2 (confident spoken and written communication in everyday work situations).

    Experience

    • You have strong experience with relational databases and enjoy working in a data-driven way; you know how to model data, write efficient SQL, and optimize queries.
    • Interest in or experience with GIS/geospatial workflows and spatial data processing.

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    What we offer

    • Long-term, interesting, and varied work for a reliable employer in a supportive team.
    • A family-friendly company culture with flexible working hours and remote working options available according to your individual needs.
    • Numerous training and further development opportunities within the Group (5% of working time for self-organized training and education).
    • Staff shopping and travel discounts.
    • Easy public access and on-site parking.
    • An attractive annual gross salary, market-compliant and performance-related, starting at EUR 50,000 with the possibility of higher pay based on your qualifications and professional experience.

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    Benefits

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    Job Locations

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    • Location Vienna

      Austria

    This is your employer

    REWE Group Österreich

    REWE Group Österreich

    Wien, Premstätten, Wiener Neudorf, Wien

    The IT department of the REWE Group Austria is made up of over 500 talented employees who develop innovative IT products and services that provide the best shopping experience in markets like BILLA, BILLA PLUS, PENNY, BIPA and ADEG. With customers and partners in Austria, Italy and nine other European countries, we are constantly developing new solutions for retail that will revolutionize commerce. In cross-functional product teams, colleagues from fields like IT Consulting, Development/Programming ,IT Operations and Organizational Management work together to digitize trade.

    Description

  • Company Size
    250+ Employees
  • Founding year
    1953
  • Company Type
    Established Company
  • Working Model
    Full Remote, Hybrid, Onsite
  • Industry
    Trade, Internet, IT, Telecommunication

    • Dev Reviews

    by devworkplaces.com

    Total

    (4 Reviews)
    3.8

    • Workingconditions

      3.8

    • Career Growth

      4.3

    • Engineering

      3.4

    • Culture

      3.6
    Show All Dev Reviews
    Logo REWE Group Österreich

    Senior Backend Developer - Python & Java

    REWE Group Österreich
    Salary
    from 50.000 € Gross/Year
    Location
    Vienna
    Working Model
    Hybrid, Onsite
    Diversity
    Open for all genders

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