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June 2, 2026

FullStack Developer

Mid • Hybrid

22,680 - 25,200 PLN

Krakow, Poland

Requirements description

  • Knowledge of the Java language and its Enterprise features for Back End development, including technologies such as:

    • Java 11, 17

    • Spring Ecosystem (Spring MVC, Spring Boot, Spring Batch, Spring Security, etc.)

    • Database Access (JPA, Spring Data JPA, Hibernate, JDBC)

    • Security protocols and technologies (JWT, Oauth2)

    • Messaging systems (RabbitMQ, Kafka)

  • UI

    • Angular 8+, npm, d3

    • REST API

  • Knowledge of database programming via SQL (MS SQL preferable), including

    • SQL

    • SQL analyzing tools, like Query Plan

  • Knowledge of Build tools like Maven. An IDE like Eclipse or IntelliJ.

  • Knowledge of Unit testing tools like JUnit and unit testing strategies.

  • Knowledge container and orchestrator such as Docker, Kubernetes (and/or OpenShift)

  • Knowledge of CI/CD tools and mainly git, Jenkins

  • Strong understanding of OOP, SOLID, and ACID principles

  • Knowledge and understanding of C4 model.

  • Knowledge of cloud solutions (AWS or Azure) and Redis will be additional asset

Soft skills

  • Good interpersonal skills and flexibility

  • Teamwork

  • Time management

Your responsibilities

  1. Back-end development in Java (60%) and Front-end development in Angular(40%)

  2. Design and development of REST APIs

  3. Database work (SQL, MS SQL, JPA, Hibernate, Spring Data, JDBC)

  4. SQL query analysis (Query Plan)

  5. Implementation of security mechanisms (JWT, OAuth2)

  6. Integration with messaging systems (RabbitMQ, Kafka)

  7. UI development (Angular 8+, npm, d3)

  8. Building and maintaining CI/CD pipelines (Git, Jenkins)

  9. Work with containers (Docker, Kubernetes / OpenShift)

  10. Creating unit tests (JUnit)

  11. Applying OOP, SOLID, ACID principles

  12. Architecture modeling using the C4 model

  13. Working with cloud solutions (AWS/Azure – nice to have)

  14. Using Redis – additional asset

  15. Maintaining code quality and performing code reviews