L3 Application Support

Hi5 Consult; Singapore; On-site; SGD 70,000 - 90,000; Full time

Job summary

Hi5 Consult is hiring an L3 Application Support Engineer in Singapore to ensure 24/7 reliability, performance, and security of critical banking apps. You will own incident resolution, drive automation, and partner with Dev, Security, and Business teams to maintain high availability and regulatory compliance.

Key responsibilities include L3 support with monitoring, incident triage, health checks, deployments, automation, and collaboration across teams to deliver long-term fixes and smooth change

Qualifications

• Experience in application support or DevOps environments is a plus.
• Familiarity with CI/CD concepts and automation tooling.
• Strong problem-solving and incident management skills.

Responsibilities

• Provide L3 application support with continuous monitoring of critical production banking apps to ensure maximum uptime.
• Triage, diagnose, and resolve P1/P2 incidents while meeting corporate SLAs.
• Perform daily health checks, patches, and proactive monitoring to detect anomalies before business impact.
• Manage deployments, automated configurations, and batch jobs via CI/CD pipelines.
• Identify, prioritize, and remediate system vulnerabilities per compliance standards.
• Plan technical upgrades to ensure regulatory compliance and system integrity.
• Design and implement automation scripts in PowerShell, Bash, Python to eliminate repetitive tasks.
• Work with developers, vendors, security/compliance teams, and business units to investigate issues and deliver long-term fixes.
• Coordinate change/release management across Dev, UAT, and Production to maintain environment uniformity.

Job description

We’re hiring an L3 Application Support Engineer to ensure 24/7 reliability, performance, and security of critical banking applications.

You’ll own complex incident resolution, drive automation to reduce manual toil, and partner with Dev, Security, and Business teams to maintain high availability and compliance.

Core Day-to-Day Responsibilities

• System Reliability & Availability Management Provide L3 application support with continuous monitoring of critical production banking apps to ensure maximum uptime Rapidly triage, diagnose, and resolve P1/P2 incidents while meeting corporate financial SLAs Perform daily health checks, system updates, patches, and proactive monitoring to detect anomalies before business impact Support DR drills and lead high-severity incident response with swift troubleshooting to maintain system resilience
• DevOps Engineering & Automation Manage and support application deployments, automated configurations, and batch jobs via CI/CD pipelines Identify, prioritize, and remediate system vulnerabilities/security flaws per compliance standards Track EOS/EOL software components and plan technical upgrades to ensure system integrity and regulatory compliance Design and implement automation scripts in PowerShell, Bash, Python to eliminate repetitive tasks and streamline maintenance/reporting
• Cross-Functional Collaboration & Environment Control Work closely with developers, vendors, security/compliance teams, and business units to investigate issues and deliver long-term fixes Coordinate and execute change/release management across Dev, UAT, and Production to maintain environment uniformity Author and maintain technical runbooks, incident post-mortems, and engineering documentation to empower L1/L2 support and onboarding