Senior Network Engineer

QUESS SELECTION & SERVICES PTE. LTD.; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

A technology consulting firm in Singapore is seeking a Senior/Lead Network Consultant to support and enhance enterprise and data centre network operations. The role involves troubleshooting complex incidents, managing problem resolution, and contributing to network architecture improvements. The ideal candidate will have 6–10 years of relevant experience, a degree in IT or engineering, and certifications like CCNP. This position offers the opportunity to work in an advanced technical environment focused on SDN and automation.

Qualifications

• 6–10 years of hands-on experience in network engineering or consulting.
• CCNP (minimum) required; CCIE preferred.

Responsibilities

• Diagnose and resolve complex network issues, disruptions, and root causes.
• Implement and review infrastructure configurations and upgrades.
• Support SDN environments and prepare technical documentation.

Skills

Enterprise and Data Centre network design & operations

IPv4/IPv6, routing protocols (BGP)

Network resiliency and redundancy

TCP/IP, HTTP/S, SSH, FTP

Ansible, Python, REST API

Education

Degree in IT, Computer Engineering, or related discipline

Tools

SNMP

Syslog

NetFlow

Wireshark

Job description

Senior / Lead Network Consultant

Network Practice (Day 2, P2–P3)
Location: Singapore

Job Overview

We are seeking a Senior/Lead Network Consultant to support and enhance enterprise and data centre network operations. The role involves troubleshooting complex incidents, managing problem resolution, executing infrastructure changes, and contributing to network architecture improvements, including SDN and automation capabilities.

Key Responsibilities

• Diagnose and resolve complex network issues, disruptions, and root causes.

• Perform problem management, incident analysis, and end-to-end technical ownership.

• Implement and review infrastructure configurations, upgrades, and change requests.

• Conduct network performance reviews and recommend optimisations.

• Troubleshoot using industry tools (e.g., SNMP, Syslog, NetFlow, Wireshark).

• Support SDN environments—program basic rules, monitor controllers, and adjust network-wide traffic flows.

• Prepare and update SOPs, technical documentation, and user guides.

• Support enterprise network technologies, data centre environments, and security components.

• Manage technical escalations and guide engineers during critical incidents.

Requirements

Experience & Education

• Degree in IT, Computer Engineering, or related discipline.

• 6–10 years of hands‑on experience in network engineering or consulting.

Certifications

• CCNP (minimum) required.

• CCIE preferred.

Core Technical Skills

• Enterprise and Data Centre network design & operations.

• IPv4/IPv6, routing protocols (BGP), network resiliency, redundancy.

• ACLs, dACLs, RADIUS, TACACS, NAC.

• TCP/IP, HTTP/S, SSH, FTP.

• Troubleshooting tools: SNMP, Syslog, NetFlow, Wireshark.

Specialised Knowledge (at least 2 domains; expert in 1)

Data Centre (Cisco Nexus / ACI):

• Nexus 2K/5K/7K/9K, NX‑OS, vPC, Anycast Gateway, OTV, VxLAN, ACI fabrics, L2/L3 Out, VMM integration.

Enterprise Networks:

• 2-tier/3-tier, MPLS VPN, MP‑BGP, VRF‑lite, wired/wireless design, 802.1X, posturing, profiling.

SD-Access / SD-WAN:

• Cisco DNA Center, APIC‑EM, automation, VxLAN, QoS.

Security:

• NGFW, NGIPS, StealthWatch, AMP, DNS security, network baselines, vulnerability assessment.

Programmability (Good to have):

• Ansible, Python, REST API, OpenStack, OpenShift.

Soft Skills

• Strong communication and stakeholder engagement.

• Ability to mentor junior engineers and manage escalations.