09.07.2026 aktualisiert
KH
100 % verfügbar
Senior IT System Administrator
riyadh, Saudi Arabien
Nur Remote
Bachelor of Education (B.Ed) Osmania UniversitySkills
Active DirectoryHp ServerOracle Weblogic ServerConfiguration ManagementMicrosoft Exchange ServerWebserverHypervisorInformation Management SystemInformationsserverIp-AdressverwaltungIt Service ManagementLDAP AdminLinux-AdministrationMicrosoft OperationsMicrosoft-Server
Windows Server Administration & Active Directory
Administration of Windows Server environments (2003/2008/2019/2022) including implementation and management of Active Directory, Group Policies, DNS, DHCP, Forest/Domain Architecture, AD Service Owner Tasks, account provisioning, LDAP-S, and monitoring of AD replication and core services for 200+ users across multiple locations.
Network Configuration & Security
Configuration and management of network infrastructure including TCP/IP, DNS, DHCP, VLAN, LAN/WAN, VPN, firewall management, wireless routers, access points, Cisco router configuration, and implementation of network security policies and documentation.
Virtualization & Cloud Technologies
Deployment and maintenance of virtualization infrastructure using VMware vSphere and Hyper-V, ensuring optimal resource allocation and uptime. Implementation of cloud technologies including Microsoft Azure, Microsoft 365 services such as Exchange Online, OneDrive, and Teams, supporting hybrid Azure AD environments.
ERP System Management
Maintenance and management of the company ERP system including regular database backups, configuration, and troubleshooting to ensure continuous business operations.
Data Migration
Execution of end-to-end data migration projects from legacy systems to modern platforms using ETL tools, SQL, and scripting for data extraction, cleansing, transformation, and loading, including data validation and reconciliation.
Data Center Maintenance & Management
Monitoring of server health, storage utilization, and cooling systems. Implementation of backup and disaster recovery procedures, patch management, security hardening, capacity planning, and incident management.
Microsoft 365 & Office 365
Administration of Microsoft 365 services including Exchange Online, OneDrive, and Teams. Management of Office 365 environments supporting hybrid Azure AD configurations.
Storage & Backup Solutions
Installation of backup storage devices for HP and Iomega, implementation of automatic database backups, RAID concepts, and experience working with SAN (Storage Area Network).
Telephony System (Avaya Office Manager)
Management of SMB-focused Avaya IP Office telephony system including creating and editing extensions and hunt groups, managing IP/Digital phones, trunks, voicemail, and real-time system monitoring.
Microsoft SQL Server & Power BI
Use of Microsoft SQL Server Management Studio for database management and Power BI for data analysis and visualization.
Service Management & Ticketing
Documentation of support procedures, troubleshooting steps, and ticket resolutions using ticketing systems such as ServiceNow and Jira to support continuous improvement.
Administration of Windows Server environments (2003/2008/2019/2022) including implementation and management of Active Directory, Group Policies, DNS, DHCP, Forest/Domain Architecture, AD Service Owner Tasks, account provisioning, LDAP-S, and monitoring of AD replication and core services for 200+ users across multiple locations.
Network Configuration & Security
Configuration and management of network infrastructure including TCP/IP, DNS, DHCP, VLAN, LAN/WAN, VPN, firewall management, wireless routers, access points, Cisco router configuration, and implementation of network security policies and documentation.
Virtualization & Cloud Technologies
Deployment and maintenance of virtualization infrastructure using VMware vSphere and Hyper-V, ensuring optimal resource allocation and uptime. Implementation of cloud technologies including Microsoft Azure, Microsoft 365 services such as Exchange Online, OneDrive, and Teams, supporting hybrid Azure AD environments.
ERP System Management
Maintenance and management of the company ERP system including regular database backups, configuration, and troubleshooting to ensure continuous business operations.
Data Migration
Execution of end-to-end data migration projects from legacy systems to modern platforms using ETL tools, SQL, and scripting for data extraction, cleansing, transformation, and loading, including data validation and reconciliation.
Data Center Maintenance & Management
Monitoring of server health, storage utilization, and cooling systems. Implementation of backup and disaster recovery procedures, patch management, security hardening, capacity planning, and incident management.
Microsoft 365 & Office 365
Administration of Microsoft 365 services including Exchange Online, OneDrive, and Teams. Management of Office 365 environments supporting hybrid Azure AD configurations.
Storage & Backup Solutions
Installation of backup storage devices for HP and Iomega, implementation of automatic database backups, RAID concepts, and experience working with SAN (Storage Area Network).
Telephony System (Avaya Office Manager)
Management of SMB-focused Avaya IP Office telephony system including creating and editing extensions and hunt groups, managing IP/Digital phones, trunks, voicemail, and real-time system monitoring.
Microsoft SQL Server & Power BI
Use of Microsoft SQL Server Management Studio for database management and Power BI for data analysis and visualization.
Service Management & Ticketing
Documentation of support procedures, troubleshooting steps, and ticket resolutions using ticketing systems such as ServiceNow and Jira to support continuous improvement.
Erfahrung
Berufserfahrungmehr als 10 Jahre
Freelancer seit2024
Sprachen
Englishverhandlungssicher
Projekthistorie
Administration of Windows Server environments, Active Directory, Group Policy, DNS, and DHCP for 200+ users. Deployment and maintenance of virtualization infrastructure using VMware and Hyper-V. Administration of Microsoft 365 services including Exchange Online, OneDrive, and Teams supporting hybrid Azure AD. System upgrades, patch management, antivirus deployments, ERP system management, data migration projects, data center maintenance, Avaya telephony system management, network firewall management, and Cisco router configuration.
Designing networks to client specifications, configuring Windows NT4 and Win2000 Servers, troubleshooting desktop PCs, cabling RJ45/RJ11, installation and configuration of server resources, taking regular application server backups, configuring internet access and sharing, virus scanning, implementation of network security, LAN troubleshooting, system administration, managing user accounts and access permissions using Active Directory and Azure AD, monitoring LAN/WAN/VPN connectivity, and conducting routine system maintenance and security patches.