Java Developer

Java Developer
We are looking for a Java Developer to join our team and contribute to building scalable, enterprise-level applications that support our global travel platforms. 
In this role, you will participate in the full software development lifecycle, working closely with Product Owners, QA Engineers, UX/UI Designers, and other developers to deliver reliable, high-quality solutions. You will play an important role in maintaining and enhancing business-critical systems while contributing to the continuous evolution of our technology landscape. 
Your responsibilities 
• Participate in the full software development lifecycle, from requirements gathering and solution design to deployment and support 
• Collaborate with Product Owners, Designers, QA Engineers, and Developers to deliver high-quality software solutions 
• Design, develop, and maintain applications using Java technologies 
• Write clean, efficient, and maintainable code following development best practices 
• Develop and maintain automated unit tests using JUnit 
• Design, implement, and maintain REST and SOAP web services 
• Create, optimize, and troubleshoot SQL and PL/SQL queries 
• Maintain and improve existing applications, including bug fixing and performance enhancements 
• Prepare and maintain technical documentation 
• Identify opportunities for system improvements and contribute to technical innovation 
Our requirements 
• Minimum 5 years of commercial experience as a Java Developer 
• Experience working with Java 8 and Java 17 
• Strong knowledge of Spring Framework, Hibernate, and EclipseLink 
• Proficiency in Oracle SQL and PL/SQL 
• Experience with tools such as GitHub, TeamCity, and Tomcat/Tomee 
• Experience designing and implementing REST and SOAP web services 
• Knowledge of JSP, Struts, and JavaScript 
• Experience with unit testing using JUnit 
• Strong analytical and problem-solving skills 
• Very good command of English and ability to work in an international environment 
Nice to have 
• Willingness to learn and work with React 
• Experience with Linux, Docker, or AWS 
• Familiarity with Java EE standards 
• Understanding of CI/CD processes and modern development practices 
How we work 
• Clean Code principles 
• Design patterns and software engineering best practices 
• Code reviews and knowledge sharing 
• Continuous Integration and Continuous Deployment (CI/CD) 
• Agile and collaborative development environment 
• Cross-functional teams working closely across Product, QA, UX/UI, and Engineering 
• Focus on quality, maintainability, and continuous improvement 
What we offer 
• Hybrid work model (1–2 days per week in our Katowice office) 
• Opportunity to work on international, large-scale projects used by customers worldwide 
• Attractive remuneration paid in EUR 
• Flexible working hours 
• Individual learning and development budget 
• Partially or fully funded training and certifications 
• English lessons 
• Mentoring and support from experienced technical leaders 
• Participation in conferences in Poland and abroad 
• A culture focused on collaboration, knowledge sharing, and continuous improvement 
• Space to innovate and bring your own ideas to life 
• Support for IT community initiatives and professional networking 
• Long-term cooperation in a stable, growing international organization