Software Engineer (Core Banking / Payments)

OPTIMUM SOLUTIONS (SINGAPORE) PTE LTD; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

OPTIMUM SOLUTIONS (SINGAPORE) PTE LTD is looking for a Production Support Analyst to manage stability, maintenance, and defect remediation for enterprise payment and core banking applications. You will provide L2/L3 production support, perform root cause analysis, and support end-to-end testing and releases in a high-availability environment.

The role requires a Bachelor's degree in Computer Science or equivalent and at least 3 years of production support experience across multiple platforms and

Qualifications

• Bachelor's degree in Computer Science or equivalent.
• 3+ years of production support experience across multiple platforms/technologies.

Responsibilities

• Incident & Problem Management: perform root cause analysis and remediation, assist L2 with incidents.
• Maintenance & Enhancements: debugging, minor fixes, support SIT/UAT/production testing during maintenance windows.
• System Resiliency: identify performance bottlenecks to improve throughput and stability for high-volume processing.
• Release & Change Management: follow SDM policies, assess risks for deployments, document changes.
• Stakeholder Engagement: communicate incident status, root cause findings, and release notes to users and vendors.

Skills

AS400/iSeries

RPG/LE

SQL

Query400

COBOL400

Code debugging

Monitoring

Education

Bachelor's degree in Computer Science or equivalent

Tools

ALDON

IBM RDi

Control-M

Splunk

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: Conduct code debugging, 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 in multiple platforms and 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).