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September 2, 2026

Junior React Developer

Junior • Remote

600 - 960 PLN/yr

Warsaw, Poland

The project is in the finance/stock exchange industry and involves building a web portal for managing financial accounts and investments. Agile teams use modern technologies to maintain an appropriate level of security.

Tech stack

  • React
  • Web App principles
  • RESTful API
  • Karma/Jasmine

Responsibilities

  • Work on ambitious projects using modern technologies and standards.
  • Generate and maintain code in accordance with coding standards and best practices.
  • Design technical solutions for new functionality and maintain existing functionality.
  • Investigate, debug, and deliver fixes for critical production incidents.
  • Research the latest technologies to meet future business needs.

Requirements

  • At least 1 year of practical experience and knowledge of ReactJS and its ecosystem.
  • Knowledge of Progressive Web App principles.
  • Ability to write clean, testable, and easily maintainable code.
  • Ability to clearly communicate and discuss ideas and concepts.
  • Knowledge of Git.

Nice to have

  • Knowledge of writing unit tests with Karma/Jasmine.
  • Experience designing RESTful APIs.
  • Understanding of OOP and reactive programming standards.
  • Basic knowledge of Docker and Kubernetes.
  • Experience with continuous integration and continuous delivery systems.

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