We are seeking an experienced Java developer to join our team. This role involves developing middleware to integrate various systems and requires a deep understanding of Java-based technologies and prior experience in building robust, scalable integration systems. Responsibilities: Design and develop high-performing middleware using Java, capable of handling complex data synchronization between different systems. Implement secure, scalable, and efficient APIs, with a specific focus on integrating using GraphQL. Collaborate with project managers and other team members to define requirements, set development goals, and meet project deadlines. Write well-designed, testable, and efficient code. Participate in the entire application lifecycle, focusing on coding, debugging, and testing. Prepare and produce releases of software components. Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review. Requirements: Proven hands-on Software Development experience in Java development. Hands-on experience in designing and developing applications using Java EE platforms. Object Oriented analysis and design using common design patterns. Profound insight of Java and JEE internals (Classloading, Memory Management, Transaction management, etc.). Excellent knowledge of Relational Databases, SQL, and ORM technologies (JPA2, Hibernate). Experience in developing web applications using at least one popular web framework (JSF, Wicket, GWT, Spring MVC). Experience with test-driven development. Mastery in software engineering tools. Ability to document requirements and specifications. Experience in building integrations and familiarity with GraphQL are highly desirable. Desirable Skills: Familiarity with concepts of MVC, JDBC, and RESTful. Experience with Spring Framework and its related sub-projects like Spring Boot, Spring MVC, and Spring Data. Knowledge of concurrency patterns in Java. Experience with building and managing Docker containers. Familiarity with CI/CD pipelines and tools like Jenkins. Knowledge of front-end technologies (JavaScript, HTML, CSS) is a plus, though not required. Application Requirements: Please submit a resume/CV detailing your relevant experience. Include a portfolio of your previous work that includes middleware projects, API integrations, or other relevant technologies. Employment Details: This is a full-time position with hybrid/remote work options. Project Duration: 6+ months, with the possibility of extension based on project needs and performance.