Senior System & Network Administrator

General Overview:We are looking for a highly skilled and proactive Senior System & Network Administrator for our client a reputable organization in the UAE. The ideal candidate must bring strong hands-on expertise in managing complex IT infrastructures advanced network environments cybersecurity tools and enterprise-level systems.This role focuses heavily on network administration firewall management system security server infrastructure and high-availability environments. You will play a critical part in ensuring the stability resilience and security of the organizations IT landscape.Key Responsibilities:Network & Infrastructure ManagementDesign manage and optimize core IT network infrastructure including LAN/WAN VLAN segmentation Wi-Fi networks routing and switching.Configure administer and troubleshoot SonicWall firewalls (SSL & Site-to-Site VPNs NAT content filtering IPS/IDS).Perform network security hardening performance tuning firmware upgrades and real-time monitoring of traffic and devices.Implement test and maintain backup failover and disaster recovery strategies to ensure business continuity.Maintain comprehensive network documentation including IP addressing topology diagrams and configuration records.System Administration & SecurityAdminister and support Windows Server environments (AD DNS DHCP GPO file services).Manage NAS storage systems ensuring optimized performance high availability and secure access.Oversee endpoint protection through Trend Micro Apex One ensuring robust malware defense policy enforcement and compliance.Monitor analyze and enhance system and network security proactively identifying risks and vulnerabilities.Support & IT OperationsProvide advanced (Level 2/3) technical support for system network and security-related issues.Handle service requests and incidents through an IT ticketing system ensuring SLA compliance.Conduct IT asset management including hardware lifecycle software licenses and inventory control.Collaborate with vendors service providers and cross-functional teams for IT upgrades deployments and projects.Lead and participate in infrastructure enhancement initiatives assigned by management.Key Requirements:Bachelors degree in computer science Information Technology or a related field.46 years of strong hands-on experience in system and network administration within enterprise environments.Deep expertise in:SonicWall firewalls & VPN technologies (SSL & Site-to-Site)Windows Server administration & domain servicesNAS storage systems and data access controlsTrend Micro Apex One and Email Gateway securityNetworking protocols: TCP/IP VLANs DNS DHCP routing switchingIT support operations and ticketing systemsPreferred certifications: CCNA Network MCSA Security or equivalent industry credentials.Key Competencies:Strong problem-solving and analytical abilities with a security-first mindset.Excellent communication and stakeholder management skills.Ability to work independently manage priorities and perform under pressure.Proactive detail-oriented and committed to maintaining high system availability and security standards.Desirable Skills:Knowledge of ITIL framework and service desk operations.Experience with scripting/automation (PowerShell Bash).Exposure to Microsoft 365 Azure or cloud infrastructure solutions. Key Skills Network security,Active Directory,Customer Service,LAN,Routers,Windows,Infrastructure,Linux,Internet,Troubleshoot,PC,Backup,Setup,hardware,Technical Support Employment Type : Full Time Experience: years Vacancy: 1