Responsibilities: Requirements & Analysis : Assist in gathering requirements from stakeholders and analyze the potential impact on related business applications. Software Development : Code, modify, test, correct, and document both new and existing programs using assigned languages, tools, and coding conventions. Testing Operations : Prepare and document test data, set up testing and production environments, and conduct unit, module, functional, and volume testing. Quality Assurance : Analyze all test results and take necessary corrective actions. Technical Documentation : Prepare and maintain comprehensive program and system documentation while producing deliverables according to group standards. System Design : Assist in establishing file structures and processing logic requirements. Project Support : Assist Project Leaders in the study and design of application systems, work coordination, project management, and user training. Maintenance & Support : Troubleshoot and support end-users during the implementation and maintenance of application systems. Team Development : Train other developers in relevant technical skills. Operational Resilience : Participate in Disaster Recovery activities, including simulation exercises at Disaster Recovery sites. Continuous Improvement : Learn and pick up new programming skills related to system development as assigned by supervisors. Prerequisites: Core Technical Requirements Three (3) years of experience (within the past four years) in each of the following: o JSP, Servlet, and Java Bean. o JavaScript and Session management. o JDBC and SQL. Two (2) years of experience (within the past three years) in coding using: o HTML 5, XHTML, AJAX, and JSON. o Java Server Faces. o EJB, including session, entity & message, Service Locator, Business Delegate, Data Transfer Object (DTO), and Data Access Object (DAO). Preferred Technical Skills Development Tools : Hands-on experience with Eclipse, or equivalent tools. Architecture : Experience in Portal and Portlet development and n-Tier Architecture. Security & Infrastructure : Knowledge of Java Web Security/LDAP, JEE Security, JEE Transaction, and JNDI. Web Technologies : Proficiency in XML, Web Services (SOAP), and AngularJS development. Design : Ability to work with UML diagrams. Secure Coding : Expertise in preventing application vulnerabilities, such as Cross-site scripting, Injection flows (SQL/Command), Race conditions, and improper error/exception handling. Integration : Experience with application integration for government services such as Corppass and Singpass.