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IT Admin - Senior IT Infrastructure & Network Engineer

Missan IT SolutionsSharjah

Key Responsibilities

A. IT Department Leadership

  • Lead, manage, and supervise the IT infrastructure and technical support team.
  • Assign responsibilities, monitor team performance, and ensure timely completion of tasks and projects.
  • Establish technical standards, operational procedures, security policies, and infrastructure best practices.
  • Provide technical guidance, mentoring, and escalation support to engineers and technicians.
  • Coordinate with management, sales, procurement, and other departments to ensure smooth operations.
  • Monitor service delivery, resource utilisation, project progress, and departmental performance.

B. IT Infrastructure Project Delivery

  • Take ownership of IT infrastructure projects from initial client consultation through design, implementation, testing, commissioning, and final handover.
  • Conduct client-site visits, infrastructure assessments, technical surveys, and requirements gathering.
  • Design and deploy complete network and IT infrastructure solutions for new offices and existing client environments.
  • Prepare Bills of Materials (BOMs), technical proposals, implementation plans, project schedules, and resource estimates.
  • Coordinate hardware procurement, installation, configuration, testing, and commissioning.
  • Personally participate in critical technical installations, configurations, and troubleshooting activities.
  • Manage project timelines, technical dependencies, risks, and client expectations.
  • Ensure projects are delivered according to agreed scope, quality standards, and commercial requirements.

C. Networking & Firewall Security

  • Design, configure, deploy, and troubleshoot enterprise network infrastructure.
  • Configure and manage Fortinet FortiGate and SonicWall firewalls.
  • Implement VLANs, routing, switching, subnetting, NAT, ACLs, DHCP, DNS, VPNs, and network segmentation.
  • Manage enterprise switches, including Cisco Catalyst/Meraki, FortiSwitch, and equivalent platforms.
  • Configure routing protocols such as OSPF and BGP where required.
  • Implement site-to-site and remote-access VPNs, firewall security policies, and secure connectivity.
  • Monitor network performance, investigate complex issues, and implement corrective measures.
  • Maintain firmware updates, configuration backups, security hardening, and change records.

D. Wireless Network Design & Deployment

  • Conduct wireless site surveys, RF assessments, access point placement, and channel optimisation.
  • Design and deploy enterprise Wi-Fi solutions using Cisco Meraki, Fortinet FortiAP, Ubiquiti UniFi, Aruba, or equivalent platforms.
  • Configure wireless controllers, guest networks, captive portals, and network security policies.
  • Troubleshoot wireless coverage, interference, roaming, and performance issues.
  • Ensure reliable, secure, and scalable wireless connectivity for client environments.

E. Server, Storage & Virtualisation Management

  • Install, configure, and administer Windows Server 2019, 2022, and 2025 environments.
  • Manage Active Directory, Group Policy, DNS, DHCP, file services, print services, and other Windows Server roles.
  • Deploy and configure physical servers, including rack installation, cabling, RAID, firmware, and commissioning.
  • Design and implement SAN/NAS storage solutions, including iSCSI and Fibre Channel where required.
  • Deploy and manage Microsoft Hyper-V environments, including virtual machine provisioning, migration, resource allocation, and performance optimisation.
  • Configure Hyper-V Failover Clustering and Live Migration where required.
  • Implement backup, restoration, disaster recovery, and business continuity solutions using Veeam or equivalent tools.
  • Troubleshoot complex server, storage, virtualisation, and infrastructure performance issues.

F. Microsoft 365 & Cloud Administration

  • Administer Microsoft 365, Exchange Online, Microsoft Teams, SharePoint Online, and Microsoft Entra ID.
  • Manage user accounts, access permissions, licensing, identity management, and security policies.
  • Implement Microsoft Intune and endpoint management solutions where required.
  • Support email migrations, Microsoft 365 migrations, tenant configuration, and cloud integration projects.
  • Ensure secure configuration, appropriate access controls, and data protection practices.

G. Presales & Client Engagement

  • Participate in client meetings to understand technical requirements and business objectives.
  • Conduct site surveys and evaluate existing infrastructure.
  • Prepare technical solution designs, network diagrams, BOMs, project estimates, and implementation proposals.
  • Recommend suitable hardware, software, licensing, and infrastructure solutions.
  • Coordinate with sales and procurement teams to validate technical specifications, compatibility, and project costs.
  • Present technical solutions to clients and clarify implementation requirements, risks, and timelines.
  • Ensure proposed solutions are technically feasible, commercially practical, and aligned with client expectations.

H. Technical Escalation & Security

  • Act as the senior technical escalation point for complex infrastructure and network issues.
  • Perform root-cause analysis and implement preventive measures for recurring incidents.
  • Establish patching, firmware update, monitoring, backup, and security hardening standards.
  • Maintain change management records and ensure infrastructure modifications are properly documented and approved.
  • Support incident response, recovery activities, and business continuity requirements.

I. Documentation & Project Handover

  • Prepare and maintain network topology diagrams, IP addressing plans, server inventories, configuration records, and implementation documents.
  • Maintain project schedules, testing records, commissioning reports, and installation checklists.
  • Prepare complete handover documentation for clients and internal support teams.
  • Ensure that asset details, warranty records, licensing information, and support arrangements are documented.
  • Follow approved secure procedures for transferring administrative credentials.
  • Obtain client acceptance and ensure all agreed project deliverables are completed.
  1. Required Qualifications
  • Bachelor's degree in Information Technology, Computer Science, Networking, or a related field is preferred.
  • Relevant technical certifications in networking, infrastructure, Microsoft technologies, or virtualisation are advantageous.
  • Strong practical knowledge of enterprise IT infrastructure design, deployment, and administration.
  1. Required Experience
  • Minimum 9 years of relevant IT infrastructure, networking, and systems administration experience.
  • Previous experience leading a technical team or managing infrastructure projects.
  • Proven track record of delivering end-to-end IT infrastructure projects for clients.
  • Strong hands-on experience in networking, firewalls, Windows Server, virtualisation, storage, and backup solutions.
  • Experience working with an IT solutions provider, systems integrator, managed services provider, or enterprise IT department is preferred.
  • Experience in client consultations, site surveys, technical design, project estimation, and final handover.
  • Valid UAE driving licence required for regular client-site visits, where applicable.
  1. Technical Skills Required

Networking & Security

  • Fortinet FortiGate and/or SonicWall
  • Cisco Catalyst/Meraki, FortiSwitch, or equivalent switching technologies
  • VLANs, routing, VPNs, NAT, ACLs, DHCP, DNS, OSPF/BGP
  • Enterprise Wi-Fi deployment and troubleshooting

Servers & Virtualisation

  • Windows Server 2019/2022/2025
  • Active Directory, Group Policy, DNS, and DHCP
  • Physical server installation and configuration
  • Microsoft Hyper-V, clustering, and Live Migration
  • SAN/NAS, RAID, and storage administration
  • Veeam or equivalent backup and disaster recovery solutions

Cloud & Enterprise Services

  • Microsoft 365, Exchange Online, Teams, SharePoint Online, and Entra ID
  • Microsoft Intune and endpoint management
  • Cloud and on-premises infrastructure integration

Project & Client Management

  • Infrastructure design and deployment
  • Site surveys and technical assessments
  • BOM preparation and technical proposals
  • Project planning, execution, testing, and commissioning
  • Documentation and client handover
  1. Preferred Certifications
  • Cisco CCNA or CCNP
  • Relevant Fortinet certifications
  • Microsoft Windows Server Hybrid Administrator certifications or current equivalents
  • Microsoft Azure or Microsoft 365 certifications
  • VMware or other relevant virtualisation certifications

Pay: AED6,000.00 - AED15,000.00 per hour

Application Question(s):

  • Total Years of UAE experience
  • Salary Expectation
  • Visa Status(Own Visa, Freelance Visa, Visit Visa, Spouse Visa)
  • Do you have the below certifications?

CCNA / CCNP (Cisco) Microsoft MS-900 / AZ-900 / MD-102 / AZ-800 (Windows Server Hybrid Administrator)

  • Do you have a valid driving license ?
  • Do you have own car?

Work Location: In person

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