Java Developer Senior&Junior

Java Developer Senior&Junior We are looking for a Junior Java Developer to join our team supporting the development and maintenance of our custom CRM system. You will work alongside experienced engineers to develop new features, fix bugs, integrate third-party components, and help modernize parts of the system. Key Responsibilities: Contribute to the development and maintenance of backend services in Java (version 8–11). Assist with frontend logic and presentation integration (e.g., JSP, basic JavaScript). Configure and maintain Apache Tomcat servers. Work with SOAP APIs for integrations with external systems. Assist in debugging, troubleshooting, and applying bug fixes. Support logging and monitoring with Log4J. Help integrate and maintain third-party libraries and components. Collaborate with senior developers on system enhancements and upgrades. Document development work and implementation steps in Confluence to support onboarding and future maintenance. Review Jira tickets and log time using Jira/Tempo (training provided). Desired Skills and Qualifications: 2+ years of experience in Java application development. Familiarity with Java 8–11. Basic understanding of backend frameworks (e.g., Spring, Hibernate). Exposure to SOAP-based web services. Experience with version control (e.g., Git). Understanding of basic frontend concepts (HTML, JSP, JavaScript). Willingness to learn and work with legacy systems and third-party tools. Strong problem-solving and debugging skills. Willingness to document work in Confluence as part of the regular development process. Basic familiarity with Jira and Tempo for time tracking (training provided). Exposure to or willingness to learn the Eclipse Development Environment. We're seeking a Senior Java Developer to lead technical efforts on our internal CRM system. You'll be responsible for system enhancements, resolving technical debt, modernizing integrations, and mentoring junior developers. This role requires hands-on experience across backend development, integrations, and DevOps support. Key Responsibilities: Design, implement, and enhance Java-based backend services (Java 8–11). Lead efforts to upgrade and modernize third-party component integrations. Manage system configuration and deployment via Apache Tomcat. Troubleshoot and resolve SOAP integration issues. Own logging strategy and implementation using Log4J. Identify and address technical debt and end-of-life components. Develop and deploy bug fixes and performance improvements. Collaborate with stakeholders to gather technical requirements. Mentor junior developers and enforce best practices in code quality and architecture. Document solutions and implementation steps in Confluence to support maintainability and onboarding. Review Jira tickets and log time using Jira/Tempo (training can be provided). Desired Skills and Qualifications: 5+ years of professional Java development experience. Strong command of Java 8–11 and modern backend frameworks (Spring, Hibernate, etc.). Experience working with and configuring Tomcat servers. Proficiency in integrating and maintaining SOAP APIs. Hands-on experience with Log4J and log management practices. Experience with 3rd party component integration and version lifecycle management. Comfortable working with legacy systems and upgrading older libraries or frameworks. Strong debugging, problem-solving, and performance optimization skills. Experience working with cross-functional teams and mentoring junior team members. Familiarity with documenting technical work in Confluence. Basic knowledge of Jira and time tracking tools like Tempo (training can be provided). Experience using the Eclipse Development Environment. Locations Kraków Remote status Fully Remote About Infotree Global Solutions At Infotree, meeting your career needs is a top priority. Client satisfaction is largely dependent on the resources we can provide, and we take pride in our delivery. We have a supportive team in place to give quality people a chance to grow and challenge themselves in their roles which has resulted in that we have placed many employees in positions that have grown into lifelong careers. We have a team of dedicated recruiters and consultant care representatives that are committed to your success and well-being. Check out our open roles to get started. Infotree Poland Sp. z o.o. is part of Infotree Global Solutions. Agency number: 15970. Founded in 2002 Co-workers More than 5000