Network & Infrastructure Engineer

Job Summary We are seeking an experienced Network & Infrastructure Engineer to design, implement, maintain, secure, and troubleshoot enterprise network and IT infrastructure across multiple locations. The ideal candidate will have strong hands-on experience in Cisco/HP Aruba networking, enterprise wireless, firewalls, VPNs, NAC, structured cabling, telephony, CCTV, IoT, and IT/OT connectivity. Key Responsibilities • Network Infrastructure: Configure and manage LAN/WAN, Cisco and HP/Aruba switches, routers, VLANs, OSPF/BGP, routing, redundancy, SD-WAN, IP addressing, and ISP connectivity. • Wireless Networking: Manage enterprise Wi-Fi, access points, controllers, SSIDs, authentication, guest networks, coverage surveys, and performance optimization. • Telephony & VoIP: Administer 3CX, Cisco Unified Communications, SIP trunks, extensions, IVR, call routing, VoIP gateways, and QoS. • Network Security: Manage next-generation firewalls (FortiGate, Palo Alto, Cisco Firepower or equivalent), security policies, NAT, IPS/IDS, VPNs, HA, NAC, 802.1X, RADIUS/TACACS+, and network segmentation. Support endpoint security (EDR/XDR), email security, and security incident investigation. • Structured Cabling: Plan and supervise Cat6/Cat6A and fiber-optic installations, MDF/IDF rooms, racks, patch panels, cable management, Fluke certification, fiber testing, and contractor activities. • CCTV & Surveillance: Deploy and troubleshoot IP cameras, NVR/VMS, PoE, video storage, CCTV VLANs, and access-control integration, ensuring compliance with applicable UAE security authority requirements, including SIRA/MCC where relevant. • IoT, OT & Smart Infrastructure: Support industrial devices, sensors, gateways, wireless bridges, and IT/OT connectivity; implement secure segmentation and DMZs while coordinating with engineering, automation, and application teams. • Monitoring & Troubleshooting: Monitor network health, availability, latency, packet loss, and bandwidth using PRTG, SolarWinds, ManageEngine, or equivalent tools. Resolve complex L2/L3, firewall, VPN, wireless, fiber, and application connectivity issues using Wireshark and other diagnostic tools. • Incident & Change Management: Perform root cause analysis (RCA), implement corrective actions, support upgrades and outages, and follow approved maintenance and change-management procedures. • Documentation & Compliance: Maintain network diagrams, IP/VLAN plans, configurations, backups, asset inventories, rack layouts, cable records, SOPs, and audit documentation. Coordinate with IT teams, vendors, contractors, security teams, telecom providers, and business stakeholders. Required Qualifications & Skills • Minimum 5 years of hands-on experience in network engineering, infrastructure, or systems/network administration; multi-site enterprise experience is preferred. • Strong knowledge of TCP/IP, IPv4/IPv6, subnetting, switching, routing, OSPF/BGP, DNS/DHCP, SNMP, Syslog, QoS, VPNs, and high availability. • Practical experience with Cisco, HPE Aruba, enterprise wireless, next-generation firewalls, NAC, telephony, copper/fiber infrastructure, IP CCTV, and IoT networking. • Knowledge of EDR/XDR, email security, SPF/DKIM/DMARC, packet analysis, network segmentation, and IT/OT security. Familiarity with Modbus, OPC, Profinet, or EtherNet/IP is an advantage. • Strong troubleshooting, analytical, documentation, communication, and problem-management skills, with the ability to perform under pressure. Education & Certifications • Bachelor’s degree in IT, Computer Science, Electronics, Telecommunications, Engineering, or a related field is preferred; equivalent hands-on experience and certifications may be considered. • Preferred certifications: Cisco CCNA/CCNP Enterprise, Aruba, Fortinet FCP/FCSS, Palo Alto PCNSA/PCNSE, or equivalent security certifications. Additional Requirements • UAE experience and a valid UAE driving licence are preferred. • Willingness to travel between company sites and provide planned maintenance and after-hours support when required. • Ability to work independently and collaboratively across data centres, offices, warehouses, factories, farms, and outdoor operational environments.