Java Software Engineer / C

Employment: Full-time Experience level: Mid-Senior Level Job Description We are looking for a Java Software Engineer to join a long-term development and maintenance project covering 7 business applications built in Java . You will become part of a 5-person development team responsible for further development of the client’s applications, implementing new functionalities and improvements, as well as supporting the resolution of application-related issues when needed. This role is a good fit for someone who feels comfortable working with existing enterprise applications while also actively contributing to their ongoing development. Your responsibilities Developing and enhancing Java-based applications Implementing new functionalities and improvements across the client’s application landscape Designing and implementing REST APIs Working with relational databases and optimizing SQL queries Managing database schema changes using Liquibase Supporting the investigation and resolution of support tickets when required Working closely with other members of the 5-person development team Contributing to the ongoing maintenance and technical development of the applications Qualifications Must-have skills Java & Backend Very good knowledge of Java 17+ Minimum 3 years of professional experience in Java backend development Good knowledge of Spring Boot 3.x Experience in designing and implementing REST APIs Databases Experience working with relational databases, particularly: Oracle Database PostgreSQL Strong SQL skills, including writing and optimizing queries Experience managing database schema changes with Liquibase Nice to have Systems & tools Knowledge of Java EE / Jakarta EE Basic knowledge of Linux Familiarity with Bash Experience working with Git Basic knowledge of Apache Kafka Experience with CI/CD tools such as Azure DevOps, GitHub Actions or Jenkins Knowledge of GlassFish 7 Business application frontend Knowledge of JSF Experience with PrimeFaces Additional Information Fluency in Polish and English required.  Hybrid work model: 2 days from the office, 3 days of home office. Office location:  Warsaw, Poznań, Lublin, Katowice, Rzeszów or Łódź.  Thank you for your interest in our offer. We will contact selected candidates whose experience best matches the requirements of the role.   Additional Information We hereby inform you that Inetum Polska sp. z o.o. has implemented an internal reporting (whistleblowing) procedure. The content of the procedure and the possibility to submit an internal report are available at: https://inetum.whispli.com/speakup?locale=pl Company Description Inetum Polska  is part of the global Inetum Group and plays a key role in driving the digital transformation of businesses and public institutions. Operating in cities such as Warsaw, Poznan, Katowice, Lublin, Rzeszow, Lodz the company offers a wide range of IT services. Inetum Polska actively supports employee development by fully funding training, certifications, and participation in technology conferences. Additionally, the company is involved in local social initiatives, such as charitable projects and promoting an active lifestyle. It prides itself on fostering a diverse and inclusive work environment, ensuring equal opportunities for all. Globally, Inetum operates in 19 countries and employs over 28,000 professionals. The company focuses on four key areas: Consulting (Inetum Consulting):  Strategic advisory services that help organizations define and implement innovative solutions. Infrastructure and Application Management (Inetum Technologies):  Designing and managing IT systems tailored to clients’ individual needs. Software Implementation (Inetum Solutions):  Deploying partner solutions from industry leaders like Microsoft, SAP, Salesforce, and ServiceNow. Custom Software Development (Inetum Software):  Creating unique software solutions to meet specific client needs. With strategic partnerships with major technology giants, including Microsoft, SAP, Salesforce, and ServiceNow, Inetum delivers advanced technological solutions tailored to customer requirements. In 2023, Inetum reported revenues of €2.5 billion, underscoring its strong position in the digital services market. Inetum distinguishes itself by offering a comprehensive range of benefits that meet the diverse needs of employees, providing flexibility, support and commitment. Here's what makes working at Inetum unique: Attractive financial benefits: A cafeteria system that allows employees to personalize benefits by choosing from a variety of options. Generous referral bonuses, offering up to PLN6,000 for referring specialists. Additional revenue sharing opportunities for initiating partnerships with new clients. Professional development and team support: Ongoing guidance from a dedicated Team Manager for each employee. Tailored technical mentoring from an assigned technical leader, depending on individual expertise and project needs. Community and Well-Being: Dedicated team-building budget for online and on-site team events. Opportunities to participate in charitable initiatives and local sports programs. A supportive and inclusive work culture with an emphasis on diversity and mutual respect.