Full Stack Developer w Poland, Kraków

Expected, Java, Spring Boot, https://jobeax.com/link/tzGekrj9a8ToGEDv, JavaScript, HTML, JSP, Oracle PL, SQL, Linux Shell, GitHub, Ansible, PL/SQL

Operating system, Windows, Linux

About the project, 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?

This is how we work, agile

Your responsibilities, 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, https://jobeax.com/link/tzGekrj9a8ToGEDv, 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, https://jobeax.com/link/tzGekrj9a8ToGEDv, 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 Expected, , Migration:, •UAT defect fixing and sign-off support, •OAT installation and testing support through sign-off, •Production deployment readiness and go-live assistance, •Technical 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

Optional, 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

What we offer, Flexible cooperation model – choose the form that suits you best (B2B, employment contract, etc.)., Remote work setup, 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.

This is how we work on a project, Continuous Deployment, Continuous Integration, DevOps, functional tests, test automation, testing environments

Benefits, sharing the costs of sports activities, private medical care, sharing the costs of professional training & courses, life insurance

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.

Mindbox Sp. z o.o., At Mindbox, we connect top IT talents with technology projects for leading enterprises across Europe., Our focus is on matching your skills with work that matters – projects that use modern tech stacks, solve real business challenges, and give you space to grow. By joining us, you’ll deliver technology solutions for well-known brands, supported by the Mindbox team that values knowledge-sharing and continuous development. We make sure you have the tools, flexibility, and guidance to do your best work – and to keep moving forward in your career.