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September 9, 2026

Mid-Level Full Stack Developer – Java, Spring Boot & Vue.js

Mid • On-site

27,300 - 32,760 PLN/yr

Kraków, Poland

Quick Facts

  • Mid-Level Full Stack Developer
  • Hybrid work model: 2 days in office / 3 days remote

Description

You will support a critical web application migration from Windows to Linux servers, contributing to build, integration, testing, and deployment activities for web and Oracle backend systems. The role includes contributing to UAT testing, leading Oracle OAT installation and testing phases, supporting production deployment and go-live, validating configuration/connectivity/behavior, troubleshooting on Red Hat Linux, and fixing defects from UAT/OAT testing.

Responsibilities

  • Support UAT testing: defect fixing, regression testing, and collecting test evidence
  • Lead installation and testing phases of Oracle OAT
  • Support production deployment, preparation, and go-live activities
  • Validate configuration, connectivity, and application behavior in the UAT environment
  • Troubleshoot deployment and runtime issues on Red Hat Linux by analyzing logs, services, and permissions
  • Fix defects identified during UAT/OAT testing to ensure validated changes
  • Contribute to release readiness: stability, performance, and operational checks
  • Document configuration changes, deployment steps, and known issues
  • Collaborate with developers, testers, infrastructure, and release teams
  • Build new data pipelines into Oracle database using PL/SQL
  • Write Linux shell scripts for data quality controls and operational processes
  • Develop logging scripts for shell and Oracle processes
  • Support incident and defect resolution within PL/SQL and Shell scripting environments

Requirements

  • 4+ years full stack web development experience
  • Proficiency in Java and Spring Boot for backend development
  • Experience with Vue.js, JavaScript, HTML, and JSP for frontend development
  • Solid knowledge of Oracle PL/SQL and Unix Shell scripting
  • Hands-on experience with Red Hat Linux environments (deployment and troubleshooting)
  • Experience supporting UAT/OAT testing cycles and defect resolution
  • Ability to produce clear technical documentation (deployment steps, configuration notes)
  • Familiarity with DevOps tools like GitHub and Ansible
  • Language: English (communicative proficiency)
  • Eligibility: existing legal right to work in Europe

Benefits

Join a team dedicated to impactful digital solutions and career growth in dynamic environments.

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