L1 Production/Application Support - Core Banking & Payments

D L RESOURCES PTE LTD; Singapore; On-site; SGD 100,000 - 150,000; Full time

Job summary

D L RESOURCES PTE LTD in Singapore seeks a Banking Application & Infrastructure Production Support Engineer to provide end-to-end support for core banking and related services, ensuring 24x7 SLA adherence.

Responsibilities include incident, problem and change management, transaction tracing, logs analysis, automation, and collaboration with cross-functional teams to ensure availability, integrity and timely remediation of issues.

Qualifications

• Bachelor's degree in CS/IT/Engineering is required.
• 5+ years in banking application support or infrastructure operations.
• Experience supporting 24x7 mission-critical banking systems in SLA-driven environments.
• Strong end-to-end transaction tracing and log analysis skills.
• Hands-on UNIX/Linux, Windows, AS/400 and mainframe exposure.
• Familiar with ITIL processes: incident, problem and change management.
• Excellent communication and stakeholder management skills.

Responsibilities

• Investigate customer-reported payment failures, login issues, and card-processing problems.
• Perform end-to-end transaction tracing across applications, databases, and interfaces.
• Support Start-of-Day and End-of-Day processing, releases, deployments, and DR exercises.
• Coordinate with business users, operations, application, and infrastructure teams.
• Monitor systems, automate tasks, and maintain dashboards and alerts.
• Apply ITIL-based incident, problem and change management; drive RCA and remediation.

Skills

Banking domain

24x7 support

Incident management

Problem management

Change management

Root cause analysis

Log analysis

Transaction tracing

UNIX/Linux

Automation scripting

Education

Bachelor's degree in CS/IT/Engineering

Tools

Splunk

Geneos

Control-M

VMware

Ansible

PowerShell

Python

SQL

Windows Server

Job description

2 Types Of Work Schedule: Work Schedule (A): 24/7 rotation period, the typical shifts are:

• 7:00 AM – 6:00 PM
• 11:00 AM – 10:00 PM
• 9:30 PM – 8:00 AM

The usual work pattern is approximately 4 consecutive working days/nights followed by 3 days off. Because this is 24/7 coverage, shifts may fall on weekdays, weekends and potentially public holidays, depending on the roster.

Work Schedule (B) regular office-hour shifts, usually Monday to Friday with weekends off:

• 8:00 AM – 5:30 PM
• 9:00 AM – 6:30 PM
• 1:00 PM – 10:00 PM

For new hires, they will generally start on the regular Monday–Friday schedule for the first few months before transitioning into the 24/7 roster. The schedule also appears to rotate in block of 3 months. So the candidate should be comfortable with onsite shift work, including day/evening/night rotations and weekend coverage, although there should be at least around 3 months per year on regular office-hour shifts.

Responsibilities

Job Summary

The Banking Application & Infrastructure Production Support Engineer provides end-to-end support for customer-facing banking applications, transaction-processing services, and the underlying technology infrastructure. The role combines hands-on investigation of payment, login, transaction, core banking, cash-management, and card-related issues with infrastructure maintenance, monitoring, automation, and service recovery in a 24x7, SLA-driven environment.

Banking Application and Customer Issue Support

• Investigate customer-reported payment failures, delays, reversals, reconciliation exceptions, login and authentication issues, and failed, pending, duplicate, rejected, or delayed transactions.
• Support incidents affecting core banking, retail and wholesale banking, cash management, customer information, credit cards, debit cards, card processing, and account-related services.
• Assess customer and business impact, provide timely updates, develop safe workarounds where appropriate, and coordinate permanent corrective actions.

Transaction Investigation and Production Support

• Perform end-to-end transaction tracing across applications, databases, APIs, interfaces, middleware, operating systems, networks, storage, AS/400, mainframe, and downstream services.
• Analyze application and system logs, SQL data, batch records, error messages, monitoring alerts, and file-transfer results to isolate the point of failure.
• Identify whether an issue originates from an application, database, scheduler, operating system, network, storage platform, middleware, external interface, or third‑party service.
• Support Start‑of‑Day and End‑of‑Day processing, production releases, application deployments, service restoration, and Disaster Recovery exercises.

Infrastructure Maintenance and Engineering

• Perform or coordinate network troubleshooting, connectivity and network‑path validation, OS patching and upgrades, vulnerability remediation, storage patching, and capacity or performance checks.
• Support physical and virtual server deployment, configuration, migration, infrastructure service provisioning, environment builds, upgrades, and lifecycle activities.
• Safely stop and restart application, middleware, database, batch, and related services during maintenance; complete pre‑checks, post‑change validation, health checks, and business handover.
• Support high availability, backup, recovery, VMware or equivalent virtualization, and Disaster Recovery arrangements.

Monitoring, Batch Operations, and Automation

• Monitor systems, transactions, batch jobs, interfaces, scheduled tasks, and file transfers using Splunk, Geneos, Control‑M, SQL Monitor, and other enterprise tools.
• Create and maintain dashboards, alerts, operational views, and actionable monitoring for application and infrastructure services.
• Develop automation using Ansible, UNIX/Linux shell scripting, PowerShell, Python, SQL, or equivalent technologies to improve reliability and reduce manual effort.

Service Operations and ITIL Management

• Apply Incident, Problem, and Change Management practices; participate in major incident recovery and restore services within agreed SLA and KPI targets.
• Conduct root‑cause analysis and post‑incident reviews, track corrective and preventive actions, and coordinate permanent remediation for recurring issues.
• Prepare change records, risk and impact assessments, implementation steps, validation procedures, rollback plans, and production‑readiness evidence.
• Support Release and Deployment Management, Service Request Management, operational acceptance, SLA reporting, and service‑availability reporting.

Stakeholder, Documentation, and Compliance

• Coordinate with business users, customer service, banking operations, application, database, infrastructure, network, storage, cybersecurity, command‑centre, and vendor teams.
• Provide clear management updates during service disruptions and maintain incident reports, SOPs, runbooks, recovery procedures, implementation plans, and knowledge articles.
• Ensure production activities comply with banking technology‑risk, information‑security, regulatory, audit, access‑control, and change‑governance requirements.

Requirements

Mandatory Experience and Required Skills

• Banking or financial-services experience is mandatory, with a minimum of 5 years of hands‑on experience in banking application support, infrastructure operations, production support, or a combination of these areas.
• Proven experience supporting 24x7 mission‑critical banking systems in an SLA‑driven environment, including customer‑impacting and high‑severity incident recovery.
• Hands‑on experience investigating payment, login, authentication, transaction, core banking, cash‑management, card‑processing, batch, interface, or file‑transfer issues.
• Strong capability in end‑to‑end transaction tracing, log analysis, SQL investigation, data validation, troubleshooting, and root‑cause analysis without compromising production‑data integrity.
• Working knowledge of UNIX/Linux, Red Hat Enterprise Linux, IBM AIX, Microsoft Windows Server, AS/400, and/or mainframe systems, with deep hands‑on expertise in multiple platforms.
• Experience with Splunk, Geneos, Control‑M, SQL monitoring, enterprise application monitoring, and infrastructure monitoring.
• Experience with networking, OS and storage patching, server deployment, VMware or equivalent virtualization, infrastructure service builds, high availability, backup, and Disaster Recovery.
• Automation or scripting experience using Ansible, UNIX/Linux shell scripting, PowerShell, Python, SQL, or equivalent technologies.
• Strong practical experience in Incident, Problem, and Change Management, including major incidents, implementation planning, risk assessment, validation, rollback, and post‑incident review.
• Strong written and verbal communication, stakeholder management, documentation, analytical, and problem‑solving skills.
• Ability to work independently and collaboratively under strict time constraints, with a strong focus on customer impact, transaction integrity, operational risk, availability, and timely recovery.
• Willingness to participate in rotating shifts, 24x7 on‑call coverage, weekend maintenance, public‑holiday support where required, and after‑hours implementation activities.

Preferred Skills and Experience

• Experience supporting retail banking, wholesale banking, payments, core banking, cash management, customer‑information, or card‑processing platforms.
• Experience with transaction monitoring, reconciliation, clearing, settlement, batch processing, APIs, middleware, managed file transfer, Oracle, or Microsoft SQL Server.
• Experience creating Splunk and Geneos dashboards and automating investigation, monitoring, deployment, patch validation, or infrastructure‑maintenance tasks.
• Exposure to Microsoft Azure, AWS, market‑data services, banking cybersecurity, vulnerability management, regulatory compliance, and audit controls.
• Experience working with distributed technology teams and third‑party service providers.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related discipline; equivalent relevant professional experience may be considered in line with hiring policy.
• Relevant certifications such as ITIL Foundation, RHCSA/RHCE, IBM AIX, Microsoft, VMware, Ansible, cloud, database, or infrastructure certifications are advantageous.

Working Conditions

• The role operates within a 24x7 banking production‑support environment and may require rotating shifts, on‑call coverage, weekend or public‑holiday support, and after‑hours releases or maintenance.
• Extended support may be required during high‑severity incidents until the service is stabilized or formally handed over.

Key Domain/ Technical Skills

• Banking Support: Payments, login and authentication, transactions, core banking, cash management, cards, batch, reconciliation, and customer‑impacting incidents
• Platforms & Tools: UNIX/Linux, RHEL, AIX, Windows Server, SQL, AS/400, mainframe, Splunk, Geneos, Control‑M, VMware, Ansible, shell scripting
• Service Operations: 24x7 production support, Incident, Problem, and Change Management, major incidents, RCA, SLA/KPI, release, DR, and infrastructure maintenance