Senior Java Developer

Univio relies on experience from over 500 completed projects to help organizations develop e-commerce and omnichannel models as well as implement data and AI-based solutions. The company cooperates with brands such as RTV EURO AGD, Wittchen, Agata, Tubądzin, Gemini Polska, Super-Pharm, and LuxMed, executing projects at the intersection of technology, data, and user experience. The specific project involves designing and implementing extensions and integrations based on Keycloak for a pharmaceutical client, focusing on user migration, federation and identity management, integration with client systems, and ensuring reliability and security of login processes and token handling.

• Minimum 5 years of commercial experience in Java.
• Strong knowledge of Spring Boot and Spring Security.
• Experience with system integrations using REST API.
• Practical use of OAuth2, OpenID Connect, and JWT.
• Experience with Keycloak as an integrator or extension developer.
• Worked with Keycloak SPI and UserStorageProvider.
• Participation in projects involving CIAM, SSO, or IdP.
• Practical experience with SQL and relational databases.
• Involvement in data or user migration projects, role and attribute mapping, integration error handling, and designing resilient integrations.
• Good knowledge of unit and integration testing.
• Analytical independence and ability to work at the intersection of architecture, business, and integration.

Nice to have:

• Knowledge of Freemarker.
• Experience with Magento or e-commerce environments.
• Basic knowledge of Docker and Kubernetes.
• Experience with Liquibase and Hibernate/JPA.

• Implement new business functionalities.
• Design and deploy scalable, highly available solutions tailored to client needs.
• Integrate the developed application with other systems via API.
• Collaborate with Univio teams and clients during analysis, development, and deployment phases.
• Maintain code quality and solution stability, including creating tests at various levels.
• Actively participate in scrum team activities such as planning, backlog refinement, grooming, and sprint prioritization.

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