Kerja Sepenuh Masa Application Maintenance Engineer, Gaji tinggi SGD 5,000 di OPTIMUM SOLUTIONS (SINGAPORE) PTE LTD Islandwide (Singapore) - Maukerja

Responsibilities

• Perform root cause analysis and resolve application, batch processing, database and connectivity issues.

• Develop, maintain and troubleshoot applications using Java, Spring Boot, REST APIs and microservices.

• Support FIS Open Payment Framework (OPF), including defect remediation, troubleshooting and production deployment.

• Conduct SIT, support UAT, validate fixes and coordinate production releases based on defect priority.

• Monitor application performance and troubleshoot issues across databases, middleware, operating systems and messaging platforms.

• Manage incident, problem and defect lifecycles, ensuring timely resolution and compliance with closure KPIs.

• Coordinate with development, QA, infrastructure teams and vendors to maintain production stability and improve application quality.

Requirements

• Degree in Computer Science, Information Technology or a related discipline, with at least 6 years of relevant experience.

• Strong hands-on experience in Java, Spring Boot, REST APIs, microservices and Hibernate ORM.

• Mandatory experience in FIS Open Payment Framework (OPF) troubleshooting, maintenance and deployment.

• Experience with SQL/Oracle databases, Linux/Solaris, JBoss, OpenShift and Apache.

• Knowledge of messaging and scheduling tools such as Kafka, IBM MQ, Connect:Direct and Control-M.

• Experience in production support, incident/problem management, CI/CD tools such as Jenkins, Bitbucket and SonarQube, and defect tracking using Remedy/JIRA.

• Strong troubleshooting, analytical skills; payment domain and SWIFT messaging experience are advantageous.