24/7 IT Operations Specialist – Mainframe & Platforms

UNITED OVERSEAS BANK LIMITED; Singapore; On-site; SGD 48,000 - 60,000; Full time

Job summary

UNITED OVERSEAS BANK LIMITED is seeking an IT Operations professional to support the bank's IT systems across Mainframe, AS/400, UNIX/Linux and Windows in a 24x7 Command Center. You will monitor platforms, manage batch jobs, and handle incident escalation with discipline and teamwork.

The role requires 2+ years in IT operations, a degree or diploma in IT/CS, and fluency in English. A 12-hour rotating shift pattern is expected, with collaboration across infrastructure and application teams to

Qualifications

• Degree or Diploma in Information Technology, Computer Science, or related field.
• 2+ years of hands-on IT operations or command center experience.
• Familiarity with mainframe, AS/400, UNIX/Linux, or Windows environments.
• Working knowledge of Microsoft Office (Excel, Word, PowerPoint).
• Fluent in English, both written and spoken.
• Good interpersonal skills, teamwork, and ability to stay calm under pressure.
• Willingness to work 12-hour rotating shifts following a structured pattern.

Responsibilities

• As a member of the Computer Operations team, you will ensure seamless operation of IT systems across Mainframe, AS/400, UNIX, and Windows in a 24x7 Command Center.
• Real-time monitoring of platforms, applications, ATM services, and network infrastructure; escalate to support teams per SOPs.
• Track and manage scheduled batch jobs, ensuring timely execution and SLA adherence.
• Identify, escalate, and track incidents to minimize disruption to business operations.
• Provide first-level diagnosis and resolution of system and batch issues before escalation.
• Coordinate with infrastructure and application support teams during incidents and planned maintenance.
• Maintain accurate operation logs, incident records, and shift handover documentation for audits.

Skills

Attention to detail

Team player

Calm under pressure

Fluent English

Strong communication

Education

Degree or Diploma in IT / Computer Science

Tools

Microsoft Office

Job description

UNITED OVERSEAS BANK LIMITED is seeking an IT Operations professional to support the bank's IT systems across Mainframe, AS/400, UNIX/Linux and Windows in a 24x7 Command Center. You will monitor platforms, manage batch jobs, and handle incident escalation with discipline and teamwork.

The role requires 2+ years in IT operations, a degree or diploma in IT/CS, and fluency in English. A 12-hour rotating shift pattern is expected, with collaboration across infrastructure and application teams to