Network & System Administrator
DICETEK LLC
- الإمارات
- دائم
- دوام كامل
Company Name - Dicetek
Location - Sharjah JobSummary:
We are seeking a highly skilled and proactive Network & System Administrator to manage and maintain the end-to-end IT infrastructure of our contact center, consisting of 240 seats. The ideal candidate will hold valid CCNP and MCSE certifications and be capable of supporting both network and server systems in a high-availability environment. The candidate must be flexible in working on rotating shift schedule to provide support coverage to staff.Key Responsibilities:
Network Administration: - Manage and maintain the stacked access switches (Layer 2) and core L3 switches.
- Configure and troubleshoot VLANs, DHCP relay, inter-VLAN routing, and Port-Channels (LAGs).
- Administer FortiGate firewalls, including NAT policies, security rules, SD-WAN settings, and DNS filtering.
- Ensure redundancy and routing between dual internet connections (ADSL), segregating VLAN traffic by route.
- Maintain and monitor the MPLS WAN link and ensure routing for internal applications is correctly prioritized.
System Administration: - Manage the Windows Server 2025 infrastructure
- Maintain local DNS resolution hierarchy with proper upstream forwarders.
- Support future DHCP failover/high-availability setup with a secondary server.
- Perform system patching, user provisioning, and asset lifecycle management.
- Troubleshoot and support endpoint connectivity (IP issues, DNS resolution, etc.).Required Qualifications:
- 5+ years of hands-on experience in network & system administration
- Deep understanding of:
- Layer 2/3 switching, spanning tree, port channels
- DHCP/DNS setup in enterprise networks, Routing protocols (OSPF, static routes, etc)
- FortiGate firewall configuration
- Stacked switches (Huawei, Cisco, Aruba, or equivalent)
- Managing VLAN-heavy environments
- MPLS & WAN routing policies
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