Senior Java Developer (6-month contract)

Swan IT is searching for a Senior Java Developer for a 6-month contract. This position will be based in Johannesburg and requires someone with at least 8 years of Java Development experience.

Responsibilities:

• Analyze legacy system data models and business rules to map and migrate into new relational structures using Java and Spring Boot.


• Implemented batch processing jobs using Spring Batch for large volume data transfers and reconciliation


• Conducted comprehensive user interface testing to ensure ease of navigation and functionality for brokers and administrators.


• Tested commission calculations for multiple product types, verifying accuracy according to specified broker split percentages and product policies.


• Participated in broker management testing, including adding, editing, and removing broker houses, and ensuring data integrity during broker business transfers.


• Tested accreditation processes for brokers, verifying required documents, certifications, and permissions.


• Conducted product and contract management testing, ensuring accurate association of products with broker houses and contracts.


• Participated in integration testing with external systems and databases to verify data consistency and accuracy.


• Conducted security testing to identify and address authentication and authorization vulnerabilities.


• Performed regression testing after each feature or bug fix to maintain existing functionality.


• Ensured accuracy and completeness of user manuals, guides, and help documentation through documentation testing.


• Experience on Git, Maven, and Jenkins and working in agile methodology.

Requirements:

• 8 – 10 years of Java Development experience


• Previous experience in the banking industry on projects for insurance or financial products


• Relevant Degree in IT


• Sun Certified Java Certification


• Spring Framework, Spring Data JPA, SQL, REST API, Apache Kafka, Microservices, Oracle Data Base


• Java Technologies: Java SE 8 (Lambda Expressions, Functional Interfaces, Predicate, Function, Supplier, Consumer), J2EE (Servlets, JSP, JDBC, JAXB, JAX-WS, JAX-RS, Custom Tags, JSTL)


• Frameworks & Libraries: Spring Boot, Spring MVC, Spring Core, Spring JDBC, Spring Data JPA, Spring AOP, Spring Security, Spring Batch, Spring Transactions, Spring WebFlux (Mono, Flux), Hibernate, JPA, Apache Kafka, Kafka Stream, RESTful APIs, SOAP (JAX-WS)


• Cloud & DevOps: AWS (EC2, ALB), Docker


• Design Patterns: Singleton, Factory, Proxy


• Databases: Oracle 10g, Oracle, MySQL, SQL Server


• IDEs & Development Tools: IntelliJ IDEA, Eclipse, Spring Tool Suite (STS), Maven, Jenkins


• Testing Tools: JUnit, Mockito, JMeter