Patch Operations Lead - Infra & Change Delivery

R SYSTEMS (SINGAPORE) PTE LIMITED; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

R SYSTEMS (SINGAPORE) PTE LIMITED is seeking an experienced Infrastructure Operations professional to manage patching, changes, and service delivery across infrastructure and middleware.

You will work hands-on with Windows, Linux/Unix, and middleware platforms, coordinating production changes and ensuring post-patch validation. Commitment to night/weekend support and strong documentation are essential.

Qualifications

• Minimum 5-8 years in infrastructure operations, patch management, change coordination, service delivery or technology process governance.
• Hands-on knowledge of Open Systems administration covering Windows, Linux/Unix and server patching principles.
• Middleware administration and patching: WebLogic, WebSphere, JBoss, Apache HTTPD/Tomcat or equivalent platforms.
• Experience coordinating production changes across infrastructure, middleware and application teams.
• Knowledge of CRQ/change processes, VRA/exception handling, rollback and post-patch validation.
• Comfortable supporting rostered overnight, weekend and public-holiday activities when patch windows require.
• Strong documentation, stakeholder follow-up, issue triage and escalation discipline.
• ITIL certification or equivalent service-management experience is preferred.

Responsibilities

• Coordinate production changes across infrastructure, middleware and applications.
• Support patch windows including overnight, weekends and public holidays.
• Document issues, track resolution and escalate as needed.
• Facilitate change coordination with multiple teams and stakeholders.

Skills

Infrastructure ops

Patch management

Change coordination

Service delivery

Tech process governance

Open Systems admin

Windows admin

Linux/Unix

Middleware patching

WebLogic/WebSphere

JBoss/Tomcat

Production changes

CRQ/change processes

Rollback validation

Overnight/weekend support

ITIL knowledge

Tools

WebLogic

WebSphere

JBoss

Apache Tomcat

WebServer patching

Job description

R SYSTEMS (SINGAPORE) PTE LIMITED is seeking an experienced Infrastructure Operations professional to manage patching, changes, and service delivery across infrastructure and middleware.

You will work hands-on with Windows, Linux/Unix, and middleware platforms, coordinating production changes and ensuring post-patch validation. Commitment to night/weekend support and strong documentation are essential.