Fullstack Engineer (Java & React) — AI-Enhanced

Xebiacee; Polska; Hybrid; PLN 120,000 - 190,000; Full time

Job summary

Xebia is seeking a versatile developer to design and implement backend services in Java/Kotlin with Spring Boot, and to contribute to frontend work using React and TypeScript. You will build scalable microservices, ensure accessibility (WCAG), and collaborate across teams to deliver end-to-end customer experiences with a focus on code quality and automated testing.

You'll work with AI-assisted development tools, participate in improving performance and monitoring, and engage with European

Qualifications

• Strong commercial experience with Java and/or Kotlin.
• Hands-on experience with Spring Boot and REST API development.
• Practical experience working with distributed microservices architectures.
• Strong understanding of code quality, testing, performance, and monitoring.

Responsibilities

• Develop backend services using Java and/or Kotlin with Spring Boot and REST APIs.
• Contribute to frontend development using React, TypeScript, and modern JavaScript.
• Build responsive web applications with HTML5 and CSS.
• Collaborate across backend and frontend to deliver end-to-end customer experiences.

Skills

Java/Kotlin

Spring Boot

REST API

Microservices

TypeScript/JS

React

HTML/CSS

WCAG

AI-assisted tools

B2 Polish/English

Tools

GitHub Copilot

OpenCode

Cursor

Job description

Xebia is seeking a versatile developer to design and implement backend services in Java/Kotlin with Spring Boot, and to contribute to frontend work using React and TypeScript. You will build scalable microservices, ensure accessibility (WCAG), and collaborate across teams to deliver end-to-end customer experiences with a focus on code quality and automated testing.

You'll work with AI-assisted development tools, participate in improving performance and monitoring, and engage with European