Job Summary: BESIDE is seeking a Java Backend Developer to join a client’s team, developing advanced applications, microservices, and extensible architecture. Key Highlights: 1. Advanced development of Java applications and scalable microservices 2. Integration with cloud platforms and DevSecOps environments 3. Design of extensible architecture and module marketplace DESCRIPTION At BESIDE, we champion top-tier talent within the technology sector. We operate a specialized Recruitment Unit focused on profiles to be integrated into our clients’ permanent teams. We collaborate with a broad range of companies, enabling us to identify the position best aligned with your professional needs and interests. You will have the opportunity to join highly innovative companies and work on cutting-edge projects across fields such as R\+D, automotive, pharma, machinery design, product development, etc. We are recruiting a **Java Backend Developer** to join the team of one of our key clients. **What will you do? Your main responsibilities will include:** * Advanced development of applications using Java. * Use of Java frameworks, especially Spring Framework, Spring Boot, and Spring Cloud, to build robust and scalable services. * Implementation and management of object\-relational mapping (ORM) with Hibernate. * Management and querying of relational databases (SQL Server, MySQL, PostgreSQL) and non-relational databases (MongoDB). * Deployment and implementation of solutions on cloud platforms such as AWS, Azure, or Google Cloud. * Work in DevSecOps environments, utilizing tools that facilitate continuous integration and deployment (CI/CD). * Design and execution of unit tests and other techniques to ensure software quality. * Development and maintenance of microservices, working with containerization and orchestration technologies such as Docker and Kubernetes. * Use of integrated development environments such as IntelliJ and Visual Studio Code for daily programming. * Design of an extensible architecture enabling third-party development of new modules integrated with the product core. * Implementation of an internal event system and exposure via webhooks. * Design of an internal marketplace for installable modules. * Construction of isolation mechanisms (security, resources, permissions, …) * Integration with message queues and buses (e.g., Azure Service Bus). * Documentation of architecture, SDKs, and extensibility patterns. **Benefits** * Permanent contract * Hybrid work model (3 days onsite / 2 remote) * Working hours: 2 days per week from 08:00 to 14:00 and from 15:00 to 18:30 / 3 days per week from 08:00 to 15:00. * Stable project within a growing company * Flexible compensation. REQUIREMENTS * **Minimum 3 years’ experience** as a Backend Developer in Java environments. * **Primary tech stack:** Java, Spring (Spring Boot, Spring Cloud). * **Backend and architecture:** experience in microservice development, event-driven architectures, and **multi\-tenant** environments. * **Databases:** relational (SQL Server, MySQL, PostgreSQL) and NoSQL (MongoDB). * **Cloud and DevOps environments:** experience with AWS, Azure or GCP, CI/CD, Docker and Kubernetes. * **Best practices:** testing, code quality, and technical documentation. * **Experience building SDKs, integrations or developer tools.** * **Agile environment experience**, using tools such as Jira, Confluence or Bitbucket. * **Technical English.** * Experience in **enterprise management software, ERP or accounting systems** will be valued.