Full-Stack Developer (Java/Kotlin) | React & Microservices

Engg; Polska; On-site; PLN 150,000 - 210,000; Full time

Job summary

Xebia is a global AI-first, digital transformation and engineering partner. We are hiring a backend/frontend engineer to design scalable Java/Kotlin services with Spring Boot and build responsive UI with React, TypeScript, HTML5, and CSS.

You will work in a distributed microservices environment, emphasize code quality, testing, performance and monitoring, and collaborate across teams to deliver end-to-end customer experiences. EU work eligibility and occasional Warsaw visits are required.

Qualifications

• Strong commercial experience with Java and/or Kotlin.
• Hands-on Spring Boot and REST API development experience.
• Experience with distributed microservices architectures.
• Knowledge of TypeScript and modern JavaScript frameworks (React).
• Familiarity with WCAG accessibility standards.
• Proficiency in Polish and English (B2).
• EU work eligibility with willingness to visit Warsaw office.

Responsibilities

• Develop backend services in Java/Kotlin and Spring Boot, with REST APIs in a microservices setup.
• Contribute to frontend development using React, TypeScript, and modern JS.
• Build responsive, accessible web applications with HTML5 and CSS.
• Collaborate across backend and frontend components to deliver end-to-end customer experiences, focusing on quality, testing, performance, and monitoring.
• Leverage AI-powered assistants to improve productivity and quality in software delivery.
• Work with teams to evolve automotive marketplace and its customer experiences.

Skills

Java/Kotlin

Spring Boot

REST APIs

TypeScript/JavaScript

React

HTML5/CSS

WCAG

Polish & English B2

AI-assisted development

Tools

GitHub Copilot

OpenCode

Claude Code

GCP

Job description

Xebia is a global AI-first, digital transformation and engineering partner. We are hiring a backend/frontend engineer to design scalable Java/Kotlin services with Spring Boot and build responsive UI with React, TypeScript, HTML5, and CSS.

You will work in a distributed microservices environment, emphasize code quality, testing, performance and monitoring, and collaborate across teams to deliver end-to-end customer experiences. EU work eligibility and occasional Warsaw visits are required.