Network Operations Engineer

Sea; Singapore; On-site; SGD 70,000 - 110,000; Full time

Job summary

Sea is seeking a Network Operations Engineer to sustain and advance Sea's regional network services across offices in Singapore and beyond. You will handle incidents, perform troubleshooting, monitor health, and participate in deployments and automation initiatives.

The role emphasizes operations, documentation, change management, and collaboration with internal teams, vendors, and service providers to ensure secure, reliable connectivity and continuous service improvement.

Qualifications

• Degree in computer science, information technology, network engineering, or equivalent hands-on networking experience.
• Familiarity with core networking fundamentals: TCP/IP, DNS, DHCP, routing and switching.
• Exposure to troubleshooting tools such as Wireshark, NMAP, packet captures, monitoring platforms, logs, and CLI utilities.

Responsibilities

• Provide day-to-day network operations support, including incident handling, service requests, troubleshooting, follow-up, escalation, and ticket closure.
• Monitor network infrastructure and services; identify potential degradation or failures and coordinate the appropriate response.
• Troubleshoot connectivity, routing, switching, wireless, firewall, VPN, authentication, and related infrastructure issues.
• Conduct root cause analysis, working with internal teams, local IT teams, service providers, and vendors to identify suitable workarounds and permanent solutions.
• Operate and support enterprise network infrastructure, including LAN, WLAN, firewall, SD-WAN, VPN, and network authentication services.
• Execute authorized configuration changes, maintenance, upgrades, and infrastructure improvements in accordance with established change management processes.
• Support network hardware installation, migration, refresh, and rollout activities across regional offices.
• Participate in vulnerability remediation and infrastructure hardening activities.
• Participate in regional network infrastructure deployments and projects, including requirements gathering, technical review, implementation, testing, UAT/SIT support, handover, and project closure.
• Explore automation, programming, and AI-assisted engineering tools to improve network operations, troubleshooting, documentation, and workflow efficiency.
• Maintain accurate network documentation, configuration records, operational procedures, troubleshooting guides, and knowledge base articles.
• Prepare technical documentation, reports, architecture diagrams, and presentation materials for technical and non-technical stakeholders.

Skills

Networking fundamentals

TCP/IP basics

DNS

DHCP

Routing & Switching

Wireshark

NMAP

Packet captures

Monitoring platforms

Education

Bachelor's degree in Computer Science/IT/Network Engineering

Tools

Wireshark

NMAP

Job description

Corporate IT is the backbone of Sea's business. Our team drives competitive advantage by defining technology objectives, evaluating solution options, and implementing technical solutions that support both strategic goals and day-to-day operational needs.

As part of the Network Operations team, you'll help keep network services across Sea's regional offices stable, secure, and reliable. The role is centered on operations and troubleshooting, with opportunities to contribute to infrastructure deployments, network projects, automation, and continuous service improvement.

Job Description

• Provide day-to-day network operations support, including incident handling, service requests, troubleshooting, follow-up, escalation, and ticket closure.
• Monitor network infrastructure and services; identify potential degradation or failures and coordinate the appropriate response.
• Troubleshoot connectivity, routing, switching, wireless, firewall, VPN, authentication, and related infrastructure issues.
• Conduct root cause analysis, working with internal teams, local IT teams, service providers, and vendors to identify suitable workarounds and permanent solutions.
• Operate and support enterprise network infrastructure, including LAN, WLAN, firewall, SD-WAN, VPN, and network authentication services.
• Execute authorized configuration changes, maintenance, upgrades, and infrastructure improvements in accordance with established change management processes.
• Support network hardware installation, migration, refresh, and rollout activities across regional offices.
• Participate in vulnerability remediation and infrastructure hardening activities.
• Participate in regional network infrastructure deployments and projects, including requirements gathering, technical review, implementation, testing, UAT/SIT support, handover, and project closure.
• Explore automation, programming, and AI-assisted engineering tools to improve network operations, troubleshooting, documentation, and workflow efficiency.
• Maintain accurate network documentation, configuration records, operational procedures, troubleshooting guides, and knowledge base articles.
• Prepare technical documentation, reports, architecture diagrams, and presentation materials for technical and non-technical stakeholders.

Requirements

• Degree in computer science, information technology, network engineering, or a related field—or equivalent hands-on experience in networking or infrastructure support.
• Familiarity with core networking fundamentals: TCP/IP, DNS, DHCP, and basic routing and switching.
• Some exposure to troubleshooting tools such as Wireshark, NMAP, packet captures, monitoring platforms, logs, and CLI utilities.