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April 8, 2026

Full-stack Front-end Developer (React, Java)

Mid • Remote

100 - 160 USD

Warsaw, Poland

We are looking for a Full-Stack Front-End Developer who is passionate about building modern, cloud-based applications and delivering excellent user experiences. You will work on developing and maintaining several existing applications and services, focusing on improving usability, performance, and scalability in a cloud environment.

Responsibilities

  • Maintain and develop high-quality user experiences across multiple web applications and services.

  • Build and enhance frontend features using React.js and modern JavaScript frameworks.

  • Collaborate with backend services developed in Java.

  • Improve application performance, usability, and responsiveness.

  • Work with cloud-based environments hosted on AWS.

  • Fix bugs, optimize existing solutions, and introduce improvements.

  • Collaborate closely with developers, product teams, and stakeholders.

  • Contribute to code reviews and follow best development practices.

Required Skills

  • Minimum 3 years of commercial experience with:

    • React.js

    • JavaScript

    • TypeScript

    • Java

    • AWS

  • Experience building responsive and user-focused web applications.

  • Understanding of frontend architecture and modern UI development practices.

  • Experience integrating frontend applications with APIs.

  • Knowledge of Agile development methodologies.

  • Strong problem-solving and communication skills.