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  • Java Developer – Backend Systems
    New
    Java

    Java Developer – Backend Systems

    Warszawa
    3 017 - 5 028 USDNet/month - B2B
    Type of work
    Full-time
    Experience
    Mid
    Employment Type
    B2B
    Operating mode
    Hybrid

    Tech stack

      Spring Boot

      advanced

      REST API

      advanced

      Java

      regular

      Java SE

      regular

      SQL

      regular

      TDD

      regular

      HTML

      nice to have

      CSS

      nice to have

      JavaScript

      nice to have

    Job description

    Online interview

    At Payarto, we specialize in consulting and implementation services for the electronic payments industry and beyond. We focus on creating innovative solutions and enhancing existing systems, working globally with financial institutions to deliver secure, high-performance applications and data solutions.



    About the Role:

    We are seeking an experienced Java Developer to design scalable backend applications that process large volumes of data. The role requires independent problem solving and decision-making skills. You'll collaborate with international clients and contribute to shaping secure, high-performance systems.


    Key Responsibilities:

    • Design and develop scalable backend systems using Java and Spring Boot.
    • Implement data models for secure and efficient processing of large datasets.
    • Create and maintain clear, detailed technical documentation for implemented solutions.
    • Deploy applications to internal and external environments.
    • Mentor junior developers and support testing.


    Qualifications:


    Essential:

    • Solid experience with Java, ideally Java SE 17 or higher.
    • Hands-on experience with backend-intensive applications (beyond CRUD).
    • Strong knowledge of Spring Boot and REST APIs.
    • Familiarity with SQL databases and complex data models.
    • Experience with Test-Driven Development (TDD).
    • Understanding of multithreaded programming.
    • Ability to work independently and make technical decisions.
    • Proficiency in Java design patterns and best practices.
    • Fluent in English (spoken and written).


    Nice-to-have:

    • Knowledge of cryptography and secure data management.
    • Experience with front-end technologies like HTML/CSS/JavaScript (ideally, supported by understanding of common frameworks).
    • Experience with digital payments and compliance standards.


    What We Offer:

    • Competitive salary and hybrid/full-remote work.
    • Flexible hours and work-life balance.
    • Private healthcare and Multi-Sport program.
    • Small, informal, and enthusiastic team.
    • Growth opportunities with tailored training.


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    Informujemy, że administratorem danych jest Payarto sp. z o.o. z siedzibą w Warszawie, ul. Grzybowska 4 (dalej jako "adm...more

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