Application Support Engineer

Unison Group; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

Unison Group in Singapore is seeking an experienced Application Support Engineer to provide 24x7 day-to-day support, ensure environment stability, monitor alerts, and manage incidents and problems across critical financial applications.

You will participate in deployments and respond to production queries from MAS, banks, auditors and other BCS users, collaborating with development and operations teams to diagnose root causes and implement timely fixes.

Qualifications

• Solid understanding of the Software Development Life Cycle (SDLC) in enterprise systems.
• Strong analytical and problem-solving skills with the ability to troubleshoot under pressure.
• Excellent written and oral communication; able to coordinate with multiple stakeholders.
• Hands-on experience with Java stack and relational databases; familiarity with cloud and containers is a plus.

Responsibilities

• Provide 24x7 day-to-day support and ensure stability of environments.
• Monitor alerts and manage incidents and problems to resolution.
• Participate in application deployments and production changes.
• Address regular production queries and RFIs from MAS, banks, auditors, and BCS users.
• Collaborate with development, operations, and external parties to diagnose root causes and preventive measures.

Skills

SDLC understanding

Analytical thinking

Communication

Working under pressure

Fast learner

Teamwork

Troubleshooting

Java

Kotlin

J2EE/JEE

SQL/PLSQL

MySQL

Oracle

APIs (RESTful/SOAP)

XML

Linux shell scripting

AWS (CloudWatch, KMS, S3, RDS, EKS)

Kubernetes

Docker

Spring / Spring Boot

ISO20022 knowledge

Financial Clearing / Payment Systems

Tools

Jasper Reports

Job description

Position Overview: The Application Support Engineer will assist in operational tasks such as 24x7 day-to-day support, ensure stability of environments, monitor alerts, and perform incident and problem management. The incumbent will also participate in application deployments and assist external parties, e.g. addressing regular production related queries and RFIs from MAS, banks, auditors and other BCS users.

Requirements

• Good understanding of Software Development Life Cycle (SDLC)
• Good analytical and problem-solving skills
• Good oral and written communication skills
• Ability to work under pressure and to handle tight SLAs
• Motivated, self-driven fast learner with ability to work independently and within a team
• Passionate reading the codebase and understanding how the system behaves
• Solid skills in troubleshooting and adapting different strategies based on the situation
• Technically with at least 5 years of hands‑on experience in Java, Kotlin, J2EE/JEE, MySQL, Oracle, SQL/ PLSQL, Jasper report, APIs (RESTful and SOAP) and/or XML
• Understanding of Linux OS such as RHEL and Unix shell scripting
• Experience in AWS services (CloudWatch, KMS, S3, RDS, EKS, ec2, ALB, Api Gateway)
• Knowledge of Cryptographic concepts like Encryption Keys and SSL certificates is a plus
• Understanding the micro services architecture & containers & orchestration services like Kubernetes and Docker
• Cloud-based architecture and DevSecOps technologies are a plus
• Experience in Spring 4.x / 5.x / 6.x and Struts 2.x frameworks, Spring Boot and/or Spring Batch, Spring Integration would be added advantage
• Domain knowledge of Financial Clearing and Payment Systems and ISO20022 standard is a plus