At Mindbox we connect top IT talents with technology projects for leading enterprises across Europe.
We are seeking a Full Stack Developer to support the migration of a critical web application from Windows servers to a target application server hosted on Red Hat Linux, and subsequently provide development and maintenance for both the web layer and Oracle backend components post-migration. This role includes system integration, UAT/OAT support, defect resolution, production readiness, and ongoing enhancements in PL/SQL and scripting for data handling and automation.
This two-phase role is crucial for ensuring smooth migration completion in 2026 and delivering high-quality application development afterward.
Sounds like your kind of challenge?
- Flexible cooperation model - choose the form that suits you best
(B2B, employment contract, etc.) - Hybrid work setup - remote days available depending on the client's arrangements - 6 days a month from the office in Kraków
- Collaborative team culture - work alongside experienced professionals eager to share knowledge
- Continuous development - access to training platforms and growth opportunities
- Comprehensive benefits - including Interpolska Health Care, Multisport card, Warta Insurance, and more
- High quality equipment - laptop and essential software provided
- Environment & Deployment Coordination
- Validate configuration and operational readiness of UAT environments on Red Hat Linux
- Support installations in OAT and Production (deployment preparation, cutover readiness, post-go-live validation)
- Troubleshoot integration issues involving logs, services, configurations, and permissions
- Testing & Defect Resolution
- Support functional, technical, and regression testing in UAT and OAT phases
- Debug and resolve issues discovered during user acceptance and operational acceptance testing
- Contribute to release stability and operational resilience prior to go-live
- Documentation & Collaboration
- Maintain technical documentation for deployment steps, configurations, and known workarounds
- Work closely with developers, testers, infrastructure, release, and operations teams to execute migration successfully
Application Development & Maintenance (Post-migration)- Develop web functionality using Java, Spring Boot, Vue.js, HTML, JSP
- Create and optimize data pipelines into Oracle database with PL/SQL
- Build automation scripts for data checks, logging, and process monitoring in Shell scripting on Linux
- Perform defect resolution, incident handling, and small-scale enhancements for Oracle PL/SQL and web components
- Deliver secure, efficient, and well-documented code following group standards
Note: Detailed project information will be shared during the recruitment process.
Technical Skills (Required)
- Web: Java, Spring Boot, Vue.js, JavaScript, HTML, JSP
- Database & Backend: Oracle PL/SQL, Linux Shell scripting
- DevOps: GitHub, Ansible; experience in deployment and troubleshooting in Linux environments
- Strong experience debugging configuration and runtime issues on Red Hat Linux
- Familiarity with test-driven migration processes and ability to support regression testing
Deliverables ExpectedMigration:**
- UAT defect fixing and sign-off support
- OAT installation and testing support through sign-off
- Production deployment readiness and go-live assistanceTechnical documentation for configuration, deployment, and operational guidance
Development:
- New Oracle database pipelines via PL/SQL
- Linux shell scripts for automation, logging, and operational monitoring
- Defect resolution and performance tuning for application components
What You Bring- Proven experience as Full Stack Developer handling both web application migration and backend development
- Strong ability to troubleshoot Linux-based environments and automate tasks via scripting
- Excellent communication skills to work cross-functionally in global teams
- Problem-solving mindset and capability to work under strict timelines for go-live readiness
Nice to Have- Experience in data quality frameworks and ETL processes
- Familiarity with release management and runbook preparation
- Understanding of performance optimization techniques for Oracle and application servers
Joining this project you'll become part of Mindbox - a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We'll back you up every step of the way, accelerate your development, and ensure your skills make a difference.