Java Software Engineer / 1

Employment: Full-time Experience level: Mid-Senior Level Job Description We are seeking a Java Software Engineer to join our team. The primary responsibility of this role is to migrate our database from a Sybase environment to PostgreSQL within our Billing system, ensuring no functional changes occur during the process. Post-migration, you will utilize standard REST interfaces to maintain and enhance system functionality. Main Tasks: Migrate the database from Sybase to PostgreSQL within the Billing system without altering existing functionalities. Implement and maintain standard REST interfaces post-migration. Collaborate with cross-functional teams to ensure seamless integration and system performance. Conduct technical analysis of existing systems, business logic, and technical solutions to support the migration process. Develop and maintain high-quality code, ensuring adherence to best practices and industry standards. Qualifications Must-have requirements: Proficiency in the JVM Ecosystem, including Java 17/21, Spring Boot, Spring JDBC, REST APIs, Maven, and JUnit. Strong experience with PostgreSQL and Sybase databases. Familiarity with tools and DevOps practices, including Kubernetes, Jenkins, SonarQube, and OpenAPI/Swagger. Proven experience in technical analysis, including the ability to analyze existing systems, business logic, and technical solutions. Fluent communication skills in English and Polish (minimum B2 level), both written and spoken. Nice to have requirements: Experience in developing stored procedures in Sybase. Strong analytical skills and a keen interest in AI technologies. Previous experience in the Billing domain.   Additional Information Hybrid work model: 3 days from the office, 2 days of home office. Office locations:  Warszawa, Lublin, Poznań. 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.