Sr. Network Administrator

Job Description: Network Administrator

About GECO

GECO Asia is a leading IT consulting and talent solutions provider, specializing in building and managing high-performing technology teams across Asia and Europe. With established operations in Singapore, Malaysia, and the Philippines, GECO partners with global enterprises to deliver innovative and sustainable technology solutions.

Our expertise spans IT infrastructure, cloud, cybersecurity, and digital transformation, supported by our proven track record in talent development programs (HTD/HTE) and managed services models. At GECO, we take pride in nurturing technical excellence and long-term client partnerships, enabling our people to grow while delivering measurable impact.

Position: Network Administrator

Primary Technical Abilities

Networking

• LAN/WAN/WLAN administration and troubleshooting
• Routing protocols: BGP, OSPF, EIGRP
• VLAN configuration, STP, VRRP, QoS, EtherChannel

Firewall & Security

• Advanced administration of Palo Alto Firewalls with Panorama (centralized management)
• Hands-on with Fortinet and Reverse Proxy solutions
• VPNs, NAT, App-ID, HA configuration
• Threat prevention and SIEM integration

Monitoring Tools

• SolarWinds (NPM, NTA, NetFlow) – setup, dashboards, alerting
• SNMP, syslog configuration for telemetry and alerts
• Custom dashboard creation and proactive monitoring

Automation & DevOps

• Scripting with Python, Ansible, PowerShell
• Configuration management (e.g., Git)
• Network provisioning automation (Terraform preferred)

DNS & IP Management

• Infoblox: DNS/DHCP management, IPAM, grid sync, API integration
• DNSSEC, failover, record updates (A, PTR, MX, CNAME)

SD-WAN & Cloud Integration

• Design and implementation of SD-WAN overlays
• Integration with Azure, AWS, and GCP environments
• Traffic steering, dynamic path selection, cloud routing

Reporting & Documentation

• Development of real-time monitoring dashboards
• SLA/uptime reporting and incident summaries
• SOP creation and Visio documentation

Secondary Technical Abilities

• Familiarity with ITIL-aligned incident, problem, and change management processes
• Exposure to storage and backup solutions: NetApp, Veeam, Commvault (advantageous)
• Knowledge of network compliance standards: ISO 27001, NIST, GDPR

Behavioral Abilities

• Minimum of 5 years’ experience in IT infrastructure, with at least 5 years as a Network Administrator
• Strong technical expertise in Cisco, Palo Alto (with Panorama), Infoblox, and Azure Firewall
• Highly motivated, collaborative, and customer service focused
• Strong problem-solving and communication skills (English proficiency required; French reading a plus)
• Ability to balance technical requirements with business needs

Technical Environment

• SolarWinds, Cisco, Palo Alto + Panorama, Infoblox, Azure/AWS
• VMware, NetFlow, SNMP, Terraform, Python, Ansible, PowerShell

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