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Senior Network Administrator

Senior Network Administrator

GECO Asia Pte LtdMalaysia
12 jam yang lalu
Penerangan pekerjaan

Senior Network Administrator

We are seeking a

Senior Network Administrator

to manage, optimize, and secure our global network infrastructure. This role combines hands-on engineering with operational leadership, ensuring high availability, performance, and security across LAN, WAN, WLAN, and cloud-connected environments.

Key Responsibilities

Network Operations & Maintenance

  • Monitor uptime, performance, and availability of network systems.
  • Apply patches, upgrades, and security updates to maintain stability.
  • Ensure compliance with operational standards, SLAs, and ITIL processes.
  • Collaborate with support teams on incident, change, and problem management.

Design, Build & Deployment

  • Design and implement LAN, WAN, WLAN, and load balancing solutions.
  • Configure routing protocols (BGP, OSPF, EIGRP), VLANs, STP, and Wi-Fi access points.
  • Deploy and manage firewalls (Palo Alto, Fortinet), VPNs (Global Protect, IPsec), and endpoint security solutions.
  • Automate provisioning and configuration via Ansible, Terraform, or Python.

    • Advanced Troubleshooting & Support

  • Act as L3 support for complex incidents and recurring problems.
  • Lead root cause analysis and implement preventive solutions.
  • Proactively ensure network stability, redundancy, and lifecycle consistency.
  • Provide detailed reporting on incidents, performance, and capacity.

    • Reporting, Documentation & Lifecycle Management

  • Produce regular network performance and incident trend reports.
  • Maintain dashboards for real-time monitoring and alerting.
  • Keep documentation (diagrams, SOPs, change logs) updated.
  • Plan and execute lifecycle upgrades and capacity expansion.

    • Core Technical Skills

  • Cisco Networking

    • : VLANs, STP optimization, EtherChannel, ACLs, HSRP / VRRP, NetFlow / SNMP (CCNA required; CCNP preferred).

  • Palo Alto Firewalls

    • : NAT, App-ID / User-ID, VPN (GlobalProtect, site-to-site), HA configuration, SIEM integration.

  • Infoblox

    • : DNS / DHCP / IPAM, Grid management, DNSSEC, API-driven automation.

  • SD-WAN

    • : Architecture design, traffic steering, cloud integration (Azure, AWS, GCP).

  • Monitoring Tools

    • : SolarWinds NPM / NTA, custom dashboards, syslog / SNMP configuration.

  • Security

    • : Firewall administration (Palo Alto, Fortinet), reverse proxy, remote access.

    Secondary Skills (Nice to Have) :

  • Network automation (Python, Ansible, PowerShell).
  • Configuration management (Git).
  • Documentation (Visio diagrams, runbooks).
  • Security standards (ISO 27001, NIST, GDPR).

    • What We're Looking For

  • 10 years

    • of IT infrastructure experience, with at least

    5-7

    years in network administration

  • Deep knowledge of

    • Cisco, Palo Alto, Infoblox, and Azure Firewall

  • Strong troubleshooting and analytical skills.
  • Excellent written and verbal communication in English (French reading is a plus).
  • A collaborative, customer-focused mindset with eagerness to learn.
    • Buat amaran kerja untuk carian ini

    Administrator • Malaysia