Senior Java Full Stack Developer - Contract

Responsibilities

• Design, develop, test, deploy, and maintain scalable enterprise web applications using Java/J2EE technologies.
• Develop and support backend services using Java 11, Spring Framework, Spring MVC, Spring Boot, and Hibernate.
• Build responsive user interfaces using JavaScript, HTML, Angular, React.js, jQuery, and related front-end technologies.
• Configure, administer, and troubleshoot Apache Tomcat application servers and Internet Information Services (IIS).
• Develop and maintain RESTful APIs and integrate with external applications and third-party systems.
• Implement secure file transfer mechanisms using SFTP protocols.
• Perform database design, development, optimization, and maintenance activities for Oracle and Microsoft SQL Server environments.
• Manage and support Oracle RDS 19C databases and ensure database availability and performance.
• Administer and maintain Red Hat Linux environments supporting application infrastructure.
• Utilize open-source technologies and frameworks such as Log4j, Axis, Angular, React.js, and jQuery to support application development.
• Develop and maintain content management solutions using Adobe CQ5.
• Implement and support online electronic payment integrations.
• Participate in system integration activities involving APIs and external interfaces.
• Support application deployment, troubleshooting, performance tuning, and production issue resolution.
• Collaborate with business users, stakeholders, and technical teams to gather requirements and deliver technical solutions.
• Prepare technical documentation, system specifications, and operational procedures.
• Ensure applications comply with security, performance, and quality standards.
• Support high availability and disaster recovery configurations, including Microsoft Clustering environments.
• Participate in application testing, user acceptance testing, and production releases.
• Provide ongoing maintenance and enhancements for existing applications and systems.
• Job Requirements:
• Core Technologies
• Solid experience in Java/J2EE development using Java 11.
• Hands-on experience with Spring Framework, Spring MVC, Spring Boot, and Hibernate.
• Proficiency in JavaScript, HTML, and modern web technologies.
• Experience with front-end frameworks and libraries including: Angular, React.js, jQuery.
• Experience with open-source components such as: Log4j, Apache Axis.
• Application Servers & Infrastructure
• Experience administering and deploying applications on Apache Tomcat 9 and above.
• Knowledge of Internet Information Services (IIS).
• Experience with Red Hat Linux administration.
• Familiarity with Microsoft Clustering environments.
• Database Technologies
• Solid experience with: Microsoft SQL Server 2012 and above, Oracle Database Standard Edition 1 and above, Oracle RDS 19C Database Server.
• Ability to perform database design, query optimization, and performance tuning.
• Integration & API
• Experience in designing and consuming RESTful APIs and web services.
• Knowledge of API protocols and system integration.
• Experience with SFTP protocol and secure file transfer mechanisms.
• Experience integrating with electronic bill payment/online payment systems.
• Content Management & Web Tools
• Experience with Adobe CQ5 (Adobe Experience Manager).
• Proficiency in web design and web development tools.
• Domain Knowledge
• Knowledge of SHIP and HATS1 systems/processes is preferable.
• Experience integrating with Singapore Government digital identity platforms is advantageous: SingPass (Good to Have) / CorpPass (Good to Have)

Requirements

• Bachelor's Degree in Computer Science, Information Technology, Software Engineering, or a related discipline.
• Excellent analytical, troubleshooting, and problem-solving skills.
• Experience working in enterprise or government-sector environments.
• Ability to work independently and collaboratively in cross-functional teams.
• Good communication and documentation skills.
• Interested candidates can click apply for more information.
• ** We regret to inform that only shortlisted candidates will be notified. **
• We respect your privacy and all communication will be treated with confidentiality. If you wish to know more about this position or explore other roles, please prepare your updated profile and get in touch with our consultants.
• Please note that your response to this advertisement and communications with us pursuant to this advertisement will constitute informed consent to the collection, use and/or disclosure of personal data by Manpower for the p

Additional Information

Job Scope: We are seeking an experienced Senior Java Full Stack Developer to design, develop, enhance, and maintain enterprise-grade web applications and integrated systems. The ideal candidate should possess solid expertise in Java/J2EE technologies, modern web frameworks, database management, application servers, and API integration. Experience with government authentication platforms and payment gateway integrations will be advantageous.

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