Network & System Administrator

Dicetek LLC; Dubai; On-site; AED 120,000 - 200,000; Full time

Job summary

A leading tech services company in Dubai is seeking an experienced Network and System Administrator. The ideal candidate will have current CCNP and MCSE certifications, with over 5 years of hands-on experience in network and system administration. Responsibilities include managing network infrastructure, handling security policies, and providing technical support. This role demands a deep understanding of network protocols and enterprise management.

Qualifications

• Current CCNP and MCSE certifications required.
• 5+ years of hands-on experience in network & system administration.
• Experience in configuring and managing enterprise network environments.

Responsibilities

• Manage and maintain network infrastructure, including switches and firewalls.
• Administer Windows Server 2025 infrastructure with Active Directory.
• Implement network security policies and regularly audit configurations.
• Provide Tier-2/Tier-3 technical support for network and server incidents.

Skills

Network Administration

System Administration

Security & Compliance

Technical Support

Documentation & Communication

Education

CCNP (Enterprise or Security)

MCSE (Windows Server)

5+ years of experience in network/system administration

Tools

FortiGate firewalls

SNMP monitoring tools

Scripting (PowerShell, Python)

Network monitoring tools (PRTG, SolarWinds)

Job description

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. Monitor network health, throughput, and uptime using SNMP and preferred monitoring tools. Setup and manage site-site VPN connections. Implement network and system monitoring tools.

• System Administration: Manage the Windows Server 2025 infrastructure including Active Directory (user / group management, GPO). DHCP & DNS configuration, cleanup, and failover planning. 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.).

• Security & Compliance: Implement and monitor network security policies (ACLs, port security, VLAN isolation). Ensure firewall rules align with security best practices for voice, data, and web traffic. Regularly audit logs, firmware updates, and access control configurations.

• Support & Operations: Provide Tier-2 / Tier-3 technical support for network and server incidents. Maintain documentation for all configurations, network topology, and incident history. Collaborate with vendors, ISPs, and internal stakeholders for upgrades or escalations. Plan and roll-out maintenance changes. Prepare RCA for any incidents. Prepare Change Management for any production changes.

Required Qualifications

• CCNP (Enterprise or Security) – must be current
• MCSE (Windows Server) – must be current or recently renewed
• 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

Preferred Skills (Nice To Have)

• Experience in contact center environments
• Scripting or automation (PowerShell, Python, etc.)
• Familiarity with IP telephony QoS and VoIP-aware routing
• Experience using network monitoring tools (PRTG, SolarWinds, etc.)
• Understanding of SD-WAN features and policy-based routing

Soft Skills

• Strong analytical and troubleshooting mindset
• Clear communicator, especially under pressure
• Capable of writing documentation and knowledge base articles
• Comfortable working independently and with cross-functional teams

Candidates must hold current CCNP and MCSE certifications and have over 5 years of hands-on experience in network and system administration.

A deep understanding of network protocols, firewall configuration, and enterprise network management is essential.