Manager / Senior Manager, IT (Network & Infrastructure)

Lifelong Learning SG; Singapore; On-site; SGD 60,000 - 100,000; Full time

Job summary

Lifelong Learning SG is seeking an IT Infrastructure professional to own and govern the organisation's network, servers, and end-user computing in a vendor-managed model. You will coordinate with external providers, ensure operational stability, and drive improvements in security and compliance.

You will support onboarding onto IT systems, manage incidents, and contribute to risk reduction while aligning with PDPA/ISO 27001 standards.

Qualifications

• Background in IT, Computer Science, or related discipline.
• Foundational knowledge of IT infrastructure and networking concepts.
• Basic understanding of TCP/IP, LAN/WAN, DNS, DHCP.
• Knowledge of network and security principles.
• Interest in cybersecurity, infrastructure, and IT operations.
• Comfortable working with external vendors and service providers.
• Willingness to learn and follow established procedures.
• Good communication, coordination, and documentation skills.
• Able to work under guidance in a structured environment.
• Candidates without required qualifications are welcome to apply.

Responsibilities

• Ensure availability, performance, and resilience of infrastructure services.
• Serve as primary in-house escalation point for infrastructure incidents.
• Coordinate vendors for incident resolution and changes.
• Maintain infrastructure documentation, diagrams, and asset records.
• Operate within a vendor-managed delivery model with in-house ownership.
• Review vendor proposals, designs, and change requests.
• Coordinate multi-vendor troubleshooting and resolution.
• Ensure compliance with IT policies, security standards.
• Support security and risk-related activities and audits.
• Suggest improvements and drive service optimisation.
• Assist with onboarding of officers onto IT systems.
• Escalate risks early to Head of Digital Services.

Skills

IT fundamentals

Networking concepts

Security principles

Vendor management

Documentation

Education

IT/Computer Science degree

Job description

Lifelong Learning SG (LLSG) strives to continues to strengthen its internal IT capabilities to support secure, reliable, and compliant operations. The employee will be responsible for the day-to-day ownership, governance, and continuous improvement of the organisation’s network, infrastructure, and end-user computing environment, operating within a vendor-managed service model.

The role reports to the Head of Digital Services and works closely with external service providers and internal stakeholders to ensure operational stability, cybersecurity, regulatory compliance, and service optimisation. The role also supports the onboarding of officers onto IT systems and standards and contributes to identifying opportunities for improvement, risk reduction, and infrastructure upgrades as part of ongoing operations.

Key Responsibilities

Network Infrastructure & EUCD Operations

• Ensure availability, performance, and resilience of infrastructure services.
• Act as the primary in-house escalation point for infrastructure-related incidents.
• Coordinate vendors for incident resolution, change implementation, and ongoing support.
• Maintain accurate infrastructure documentation, network diagrams, and asset records.
• Operate within a vendor-managed delivery model, retaining in-house ownership and accountability.
• Manage vendor performance against agreed SLAs and operational requirements.
• Review and validate vendor technical proposals, designs, and change requests.
• Coordinate multi-vendor troubleshooting and resolution activities.
• Ensure vendors comply with organisational IT policies, security standards, and governance requirements.

Change, Incident & Problem Management

• Oversee infrastructure-related change activities, ensuring proper impact assessment, rollback planning, and documentation.
• Manage and coordinate response to infrastructure incidents and service disruptions.
• Support root cause analysis (RCA) and follow-up preventive actions.
• Escalate risks, recurring issues, or service concerns to the Head of Digital Services where necessary.

Security, Risk & Compliance Support

• Support implementation and maintenance of technical security controls in line with PDPA requirements & ISO 27001 and organisational security policies
• Coordinate remediation of infrastructure- and EUCD-related findings from vulnerability assessments (VAPT) and security reviews.
• Ensure firewall rules, access controls, logging, and monitoring are properly implemented and reviewed.
• Support incident containment, investigation, and audit evidence gathering when required.

Technical Governance & Continuous Improvement

• Provide technical input and recommendations for infrastructure standards, configurations, and operational practices.
• Review infrastructure designs and configurations to ensure alignment with security, resilience, and operational requirements.
• Identify opportunities for service optimisation, risk reduction, and infrastructure improvements.
• Support knowledge sharing, documentation, and process improvement to enhance operational maturity.

Ad-hoc & Special Assignments

• Support ad-hoc IT or infrastructure-related assignments as directed by the Head of Digital Services.
• Participate in cross-functional initiatives involving Facilities, Security, or Business Units where infrastructure input is required.
• Escalate workload, capacity, or risk impacts early to ensure appropriate prioritisation.

Qualifications and Requirements

• Background and experience in IT, Computer Science, or related discipline.
• Foundational knowledge of IT infrastructure and networking concepts.
• Basic understanding of: TCP/IP, LAN/WAN, DNS, DHCP
• Network and security principles
• Interest in cybersecurity, infrastructure, and IT operations.
• Comfortable working with external vendors and service providers.
• Willingness to learn and follow established procedures.
• Good communication, coordination, and documentation skills.
• Able to work under guidance in a structured environment.

Candidates who do not have the required qualification or relevant experience are welcome to apply.

Successful candidates will be offered a 2-year contract in the first instance and may be considered for an extension or be placed on a permanent tenure.

Please note that only shortlisted candidates will be notified.