Application Support Engineer

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

Job summary

Newbridge seeks an experienced Application Support Engineer to manage the UAT environment for key Payment Systems. You will work with Development, QA and Infra teams to ensure high availability and smooth UAT cycles, taking ownership of deployments and incident handling.

Responsibilities include end-to-end deployment, monitoring Linux/Solaris servers and Oracle DB 19c, and L2/L3 troubleshooting, with runbooks and SOPs to improve MTTR and automation.

Qualifications

• 4–8 years of experience in Application Support, UAT Support, or non-production environment management.
• Experience in Banking / Payment Systems domain (SWIFT, MEPS+, FAST, GIRO, PayNow) is highly preferred.
• Strong analytical and problem-solving skills with ownership.
• Excellent communication across Dev, QA and Infra.

Responsibilities

• Own UAT environment management and deployment activities.
• Perform end-to-end deployment of application releases, hotfixes and scripts (Shell, SQL, Java).
• Provide L2/L3 incident management, RCA and permanent fixes.
• Analyze Java logs, heap/thread dumps and Oracle AWR for RCA.
• Coordinate with Development, QA, DBA and Infra to resolve issues within SLA.
• Automate tasks for monitoring and recovery; maintain Runbooks and SOPs.

Skills

Java

Log analysis

Heap dumps

Thread dumps

Shell scripting

Linux administration

Oracle DB

Jenkins

Monitoring tools

Communication

Education

Bachelor's degree in Computer Science or Engineering

Tools

WebLogic

JBoss

Tomcat

Jenkins

JIRA

ServiceNow

AppDynamics

Dynatrace

Grafana

Job description

Our client is looking for an experienced Application Support Engineer to manage and support the UAT environment for their key Payment Systems. You will be part of a collaborative team working closely with Development, QA, and Infrastructure teams to ensure high availability, stability, and smooth execution of UAT cycles. This is a critical role requiring strong ownership in environment management, deployment, and L2/L3 troubleshooting.

2. Key Roles & Responsibilities

A. UAT Environment & Deployment Management

• Own the installation, configuration, and patching of Java-based applications in the UAT environment.
• Perform end-to-end deployment of application releases, hotfixes, and scripts (Shell, SQL, Java).
• Ensure environment readiness before each QA cycle and maintain deployment checklists in compliance with change management (JIRA / ServiceNow).

B. Monitoring & Stability

• Perform daily and weekly health-checks on application logs, servers (CPU, Memory, Disk - Linux / Solaris), Oracle DB 19c jobs, and batch jobs.
• Proactively identify performance bottlenecks and stability risks; implement proactive alerts and preventive measures.
• Drive continuous improvement initiatives to enhance UAT availability and stability.

C. Incident Management & Troubleshooting

• Provide L2/L3 support for UAT issues - perform detailed troubleshooting, Root Cause Analysis (RCA), and provide permanent fixes.
• Analyze Java logs, heap dumps, thread dumps, and Oracle AWR reports for RCA.
• Act as the central coordinator, engaging Development, QA, DBA and Infra teams to resolve issues within SLA.

D. Automation & Documentation

• Automate manual tasks related to monitoring, health-checks, and recovery to improve MTTR.
• Create and maintain Runbooks, SOPs, Deployment Guides, and Knowledge Base articles.
• Ensure all RCA documents are delivered within 48 hours of incident closure.

3. Tech Stack & Skills Required

• Programming / Debugging: Java 8/17/21 - strong in log analysis, heap/thread dump analysis
• OS & Scripting: Linux / Solaris Administration, Shell Scripting
• Database: Oracle DB 19c - SQL, job monitoring, AWR analysis
• Application Servers: WebLogic / JBoss / Tomcat
• Tools: Jenkins, JIRA, ServiceNow, Monitoring Tools (e.g., AppDynamics, Dynatrace, Grafana)
• Other: Batch job schedulers, CI/CD concepts

4. Deliverables & KPIs

Deliverables:

1. Weekly UAT Health & Stability Report
2. Deployment Log & Release Tracking
3. RCA Documentation (within 48h)
4. Automated Monitoring & Auto-Recovery Scripts
5. Maintained SOPs, Runbooks & Deployment Checklists

KPIs:

• UAT Environment Availability > 99.5%
• MTTR < 4 Hours
• Deployment Success Rate > 98%
• 100% compliance on documentation and reporting timelines

5. Qualifications

• 4-8 years of experience in Application Support, UAT Support, or Non-Production Environment Management.
• Experience in Banking / Payment Systems domain is highly preferred (SWIFT, MEPS+, FAST, GIRO, PayNow).
• Strong analytical and problem-solving skills with a strong sense of ownership.
• Excellent communication skills to manage multiple stakeholders across Dev, QA and Infra.
• Bachelor's Degree in Computer Science, Engineering or related field.
• ITIL knowledge is a plus