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Junior React / Node.js (Full-Stack) Developer — Warsaw (On-site)

Madfish

Madfish

Software Engineering
Poland
Posted on Nov 19, 2025

We’re a growing product team building modern web solutions in the fintech and entertainment domains.

We’re looking for a motivated Junior React / Node.js Developer who’s eager to learn from experienced mentors and grow into a strong Full-Stack Engineer.


📍 Location: Warsaw, Poland (on-site)
🕐 Start: ASAP

Requirements:

  • 1–2 years of experience with React, Node.js, and TypeScript
  • Understanding of RESTful APIs and CRUD operations
  • Experience with PostgreSQL or MongoDB
  • Good knowledge of HTML5, CSS3 (and preprocessors like SCSS)
  • Familiarity with Git and Agile development
  • English: Intermediate or higher (spoken communication required)

Nice to have:

  • Familiarity with CI/CD pipelines
  • Basic Docker or AWS experience

Responsibilities:

  • Development and maintenance of Front-end applications using React and Web Components;
  • Development Backend using Node.js
  • Optimization of application performance and scalability.
  • Testing and debugging of code.
  • Participation in technical discussions and collaborative development.

CONDITIONS:

— The trial period lasts 2 months;

— 15 vacation days per year included (1.25 days are charged every month);

— 5 sick days per year included.

We offer:

  • On-site position in Warsaw
  • Mentorship from senior developers
  • Real growth path from Junior to Middle level
  • Friendly team and stable environment
  • Competitive salary (discussed individually)

💬 If you are ready to join our team and work on exciting projects in Full-Stack development using React / Node.js, we invite you to submit your resume. Join us and showcase your talent in building high-quality, scalable web and mobile applications.