Senior Full Stack Java/React Developer

ITDS

Krakow, Poland • 3h ago • On-site

Senior

On-site

20,160 - 24,360 PLN/yr

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Quick Facts

  • Role: Senior Full Stack Java/React Developer

  • Focus: Collaborative platform solutions (backend services, Web APIs, React frontend, and PostgreSQL data modeling)

Description

Build and maintain the CollaborationHub platform, including backend services and Web APIs in Java and dynamic frontend features using React. You will design and optimize PostgreSQL databases, integrate APIs and data flows, and participate in testing, QA, defect investigation, and release validation.

Responsibilities

  • Contribute to platform solution design and technical strategy

  • Develop and maintain backend services and Web APIs in Java

  • Build frontend features with React, HTML, and CSS

  • Design and optimize PostgreSQL databases (data models and SQL queries)

  • Integrate services, APIs, and data flows across the platform

  • Write, execute, and maintain tests; support QA, defect investigation, and release validation

  • Collaborate with cross-functional teams for high-quality delivery and continuous improvement

Requirements

  • 5+ years of professional full stack development experience

  • Strong proficiency in Java and SQL (PostgreSQL), including database design

  • Extensive experience with JavaScript, React, HTML, and CSS

  • Hands-on experience with ETL/ELT pipelines

  • Solid understanding of SDLC and Git

  • Strong problem-solving and attention to detail

  • Good communication skills

  • English proficiency at B2+ level

  • Existing legal right to work in the European Union

Benefits

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