Network Engineer (L1)

SAGL CONSULTING PTE. LTD.; Singapore; On-site; SGD 67,000 - 100,000; Full time

Job summary

SAGL CONSULTING PTE. LTD. is seeking a Network Administrator to administer, monitor, and secure enterprise network infrastructure across the Singapore office.

You will ensure high availability, performance, and strict SLA compliance. You will manage routers, switches, firewalls, VPNs, and related devices; respond to incidents; monitor via NMS; document topologies and capacity; and coordinate with vendors. Candidates should have 3+ years in enterprise networking, hold CCNA and ITIL Foundation,

Qualifications

• 3+ years of hands-on operational experience in enterprise network and security infrastructure management.
• Diploma in IT or related technical discipline.
• Strong L2/L3 routing and switching, firewall policy administration, analytical troubleshooting, and ITSM proficiency.

Responsibilities

• Infrastructure Admin: Provision, configure, and manage routers, switches, firewalls, and related devices.
• Incident Response: conduct rapid fault isolation and root-cause analysis per ITIL SLAs.
• Network Operations: monitor telemetry, traffic patterns, and security events via NMS.
• Documentation: maintain topology diagrams, backups, RMA pipelines, and capacity metrics.
• Vendor Management: escalate and coordinate with ISPs, telcos, and vendors for provisioning.

Skills

L2/L3 routing & switching

Firewall policy administration

ITSM platforms

Analytical troubleshooting

Vendor coordination

Education

Diploma in Information Technology

CCNA (or equivalent)

ITIL Foundation

Job description

Objective: Administer, monitor, and secure enterprise network infrastructure, ensuring high availability, performance, and strict SLA compliance.

Technical Responsibilities:

• Infrastructure Admin: Provision, configure, and manage core networking and security hardware, including Routers, Switches, Firewalls, IDS/IPS, WLCs, NAC appliances, Load Balancers, VPNs, and Proxies.

• Incident Response: Execute rapid fault isolation and root-cause analysis for network degradation and outages under high-pressure scenarios, strictly adhering to ITIL incident workflows and SLAs.

• Network Operations: Monitor network telemetry, traffic patterns, and security events utilizing enterprise Network Management Systems (NMS).

• Documentation: Maintain up-to-date network topology diagrams, configuration backups, RMA pipelines, and capacity planning metrics.

• Vendor Management: Drive technical escalations and integrations with ISPs, telcos, and third-party vendors for circuit provisioning and hardware onboarding.

Technical Requirements:

• Experience: 3+ years of hands-on operational experience in enterprise network and security infrastructure management.

• Certifications: Active CCNA (or equivalent vendor certification) and ITIL Foundation.

• Education: Diploma in Information Technology or a related technical discipline.

• Core Competencies: Strong L2/L3 routing and switching, firewall policy administration, highly analytical troubleshooting skills, and proficiency with ITSM platforms.