Enterprise Network Engineer (L1) — High Availability & Security

SAGL Consulting; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

SAGL Consulting seeks an experienced Network Administrator to administer, monitor, and secure enterprise network infrastructure in Singapore. You will ensure high availability, implement security controls, and meet SLAs.

Responsibilities include provisioning routers, switches, firewalls, and VPNs; performing incident response per ITIL; monitoring via NMS; maintaining diagrams and backups; and coordinating with ISPs and vendors for circuit provisioning.

Qualifications

• Diploma in IT or related field.
• CCNA and ITIL Foundation certifications.
• 3+ years of hands-on enterprise network and security infrastructure experience.
• Strong routing and switching, firewall policy administration, and ITSM familiarity.

Responsibilities

• Provision, configure, and manage core networking and security hardware (Routers, Switches, Firewalls, VPNs, proxies, load balancers).
• Execute rapid fault isolation and root-cause analysis per ITIL workflows.
• Monitor network telemetry, patterns, and security events using enterprise NMS.
• Maintain up-to-date topology diagrams, backups, and capacity planning metrics.
• Coordinate vendor escalations and circuit provisioning with ISPs and third parties.

Skills

L2/L3 routing

Firewall policy

Troubleshooting

ITSM platforms

Education

Diploma in Information Technology

CCNA

ITIL Foundation

Tools

NMS

ITSM platforms

Job description

SAGL Consulting seeks an experienced Network Administrator to administer, monitor, and secure enterprise network infrastructure in Singapore. You will ensure high availability, implement security controls, and meet SLAs.

Responsibilities include provisioning routers, switches, firewalls, and VPNs; performing incident response per ITIL; monitoring via NMS; maintaining diagrams and backups; and coordinating with ISPs and vendors for circuit provisioning.