IT Infrastructure Principal Engineer

About the role

BCS, a wholly owned subsidiary of Network for Electronic Transfers (NETS) and part of the NETS Group, manages and operates clearing and payment infrastructure for the Singapore Automated Clearing House, including FAST, Inter-bank GIRO, Cheque Truncation System, PayNow and SGQR. The IT Infrastructure Principal Engineer oversees the organisation's physical IT infrastructure, including new projects and ongoing upgrades, and ensures the reliability, security, performance and efficiency of servers, storage, networks, data centres and other on-premises infrastructure.

Key responsibilities

• Lead administration, support and maintenance of RHEL-based Linux infrastructure and enterprise middleware (IBM MQ, IBM Connect:Direct, Axway, LDAP) across Production, UAT and Development environments.
• Drive the Solaris-to-RHEL migration programme, decommissioning legacy Solaris platforms and adopting RHEL as the strategic OS.
• Ensure platform availability, performance, security and compliance through monitoring, capacity planning, patch management, vulnerability remediation and middleware upgrades.
• Act as technical lead and escalation point for critical incidents, working with Application, Network, Database, Security and Cloud teams.
• Lead disaster recovery, business continuity, automation and operational excellence, setting standards, governance, KPIs, SLAs and best practices.
• Lead and mentor the UNIX/Linux and Middleware team, manage incident, problem, change, release and capacity management, and handle resource planning, vendor engagement and 24x7 support.
• Drive patch management, vulnerability remediation and security hardening, and review remediation plans for security findings.
• Oversee system monitoring, performance tuning, capacity planning, backup and recovery testing, and establish and monitor KPIs, SLAs and KRIs.

Required profile

• Bachelor's degree in Information Technology, Information Systems, Computer Science or a related field.
• Minimum 10 years of infrastructure operations experience, including at least 5 years in mission-critical banking or financial services environments.
• Minimum 3-5 years of leadership experience managing infrastructure or middleware teams in a 24x7 production support environment.
• Proven experience leading RHEL Linux infrastructure and enterprise middleware platforms.
• Strong stakeholder, vendor, incident and service delivery management experience.

Required skills

• Hands-on RHEL administration, troubleshooting, performance tuning, security hardening, patch management and automation.
• Working knowledge of Solaris and experience with IBM MQ, IBM Connect:Direct, Axway SecureTransport and LDAP.
• Experience in large-scale infrastructure transformation, platform modernisation and migration projects.
• Understanding of security controls, vulnerability management, regulatory compliance and audit requirements.
• Preferred: RHCE or RHCSA, ITIL Foundation, IBM MQ Administration, Red Hat Ansible Automation certifications; cloud certifications (AWS, Azure, OpenShift) are an added advantage.