Core Banking Production Support Analyst (AS400 / Payments)

OPTIMUM SOLUTIONS (SINGAPORE) PTE LTD; Singapore; On-site; SGD 90,000 - 120,000; Full time

Job summary

OPTIMUM SOLUTIONS (SINGAPORE) PTE LTD is seeking a Production Support Analyst to manage stability, maintenance, and defect remediation of enterprise payments and core banking applications in a high-availability environment.

You will deliver L2/L3 production support, perform RCA, and support end-to-end testing and releases while coordinating with on-call rotations in Singapore.

Qualifications

• Bachelor's degree in Computer Science or equivalent.
• 3+ years of production support experience across multiple platforms/technologies.
• Hands-on experience in IBM AS400 / iSeries environment.
• Proficient in RPG/LE, CL/LE, COBOL400, SQL, and Query400.
• Experience with change management and version control tools (ALDON, IBM RDi).
• Proficiency with monitoring and scheduling tools (Control-M, Splunk, BMC Helix).
• Exposure to banking payments and settlement workflows (SWIFT MT/MX, ISO 20022).
• Strong troubleshooting and analytical capabilities.
• Willingness to participate in on-call rotation or weekend maintenance.

Responsibilities

• Incident & Problem Management: perform root cause analysis and provide remediation.
• Application Maintenance & Enhancements: debug code and support SIT/UAT/Prod deployments.
• System Resiliency: identify bottlenecks to improve throughput and stability.
• Release & Change Management: assess risks and maintain docs per SDM policies.
• Stakeholder Engagement: communicate incident status and release notes clearly to users and vendors.

Skills

Root Cause Analysis

Troubleshooting

Analytical skills

On-call readiness

Incident management

Education

Bachelor's degree in Computer Science or equivalent

Tools

AS/400

RPG/LE

CL/LE

COBOL400

SQL

Query400

ALDON

IBM RDi

Control-M

Splunk

BMC Helix

Job description

Role Overview

We are seeking a Production Support Analyst to manage the stability, maintenance, and defect remediation of our enterprise payment and core banking applications. You will deliver L2/L3 production support, perform root cause analysis (RCA), and support end-to-end testing and production releases in a high-availability environment.

Key Responsibilities

• Incident & Problem Management: Perform structured root cause analysis on application defects, provide technical remediation, and assist L2 teams with incident recovery and escalations.
• Application Maintenance & Enhancements : Debug code, make minor fixes, and support testing across SIT, UAT, and production deployments during scheduled maintenance windows.
• System Resiliency: Proactively identify performance bottlenecks to enhance application throughput, stability, and high-volume transaction processing.
• Release & Change Management: Comply with SDM policies, perform risk and impact assessments for all deployments, and maintain accurate technical documentation.
• Stakeholder Engagement: Communicate incident status, root cause findings, and release notes clearly to business users, internal support units, and external vendors.

Requirements

• Bachelor's degree in Computer Science or equivalent
• 3 or more years of production support experience across multiple platforms/technologies
• Core Technical Competencies:
  • Demonstrated hands-on proficiency in the IBM AS400 / iSeries environment.
  • Strong programming and query skills in RPG/LE, CL/LE, COBOL400, SQL, and Query400.
  • Experience with change management and version control tools (e.g., ALDON, IBM RDi).
  • Practical experience with monitoring and scheduling tools (e.g., Control-M, Splunk, BMC Helix).
• Domain Knowledge:
  • Exposure to banking payments and settlement workflows, including SWIFT messaging (MT/MX, ISO 20022), cross-border remittances, or regional clearing networks (e.g., MEPS+, RTGS, FAST, RENTAS, CNAPS).
• Professional Attributes:
  • Strong troubleshooting and analytical capabilities.
  • Ability to participate in scheduled on-call rotation or weekend maintenance windows as operationally required.