Senior Network & Security Escalation Engineer

SAGL CONSULTING PTE. LTD.; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

A leading consulting firm in Singapore is seeking a senior-level Network & Security Engineer. The ideal candidate will provide L3/4 support for complex incidents and manage firewalls, VPN, and network services. A key requirement is 5-10 years of experience in Network & Security roles, alongside relevant certifications such as CCNP/CCIE Security or CISSP. The role includes mentoring junior team members and ensuring compliance with security standards, within a dynamic enterprise environment.

Qualifications

• Certifications preferred: CCNP/CCIE Security, PCNSE, CISSP (added advantage).
• 5–10 years experience in advanced Network & Security engineering roles.

Responsibilities

• Provide L3/4 support for complex Network & Security incidents.
• Manage and troubleshoot firewalls and network services.
• Perform root-cause analysis and configuration reviews.
• Support change implementation with compliance to security standards.
• Mentor junior engineers and contribute to improvement activities.

Skills

L3/4 support for Network & Security incidents

Troubleshooting firewalls

Configuration reviews

Network services management

Mentoring junior engineers

Education

Degree/Diploma in IT, Network, Cybersecurity or equivalent

Tools

Fortinet

Check Point

Cisco

F5 WAF/ASM

RSA

Tenable/Nessus

Trend Micro

Splunk

CyberArk

SolarWinds

OPSWAT

Wireshark

tcpdump

Job description

About the Role

You will provide senior-level (L3/4) Network & Security support across enterprise environments, handling complex incidents, firewalls, network access controls, and security platforms. The role requires strong troubleshooting capability, cross-domain knowledge, and hands-on experience with enterprise security technologies.

Key Responsibilities

• Provide L3/4 support for complex Network & Security incidents and escalations.
• Manage and troubleshoot firewalls, IDS/IPS, VPN, NAC, load balancers and network services.
• Perform root‑cause analysis, configuration reviews, and remediation.
• Support change implementation and ensure compliance with security standards.
• Mentor junior engineers and contribute to continuous improvement activities.

Technical Skills

• Firewalls: Fortinet, Check Point, Cisco, F5 WAF/ASM.
• Security platforms: RSA, Tenable/Nessus, Trend Micro, Splunk, CyberArk.
• Networking: Routing & Switching, VLANs, VPN, Cisco ISE, NAC.
• Tools: SolarWinds, OPSWAT, Wireshark, tcpdump.

Qualifications

• Degree/Diploma in IT, Network, Cybersecurity or equivalent.
• Certifications preferred: CCNP/CCIE Security, PCNSE, CISSP (added advantage).
• 5–10 years experience in advanced Network & Security engineering roles.