**Requirements and responsibilities** **Junior Systems Administrator** **Key Responsibilities** * Maintain and support virtual servers both on\-premises and in the cloud (Microsoft Azure, GCP, VMware). * Monitor and validate backups, troubleshoot incidents, and escalate complex issues when needed. * Support help desk teams by resolving system and infrastructure escalations. * Administer on\-premises infrastructure including Active Directory, Windows Server 2022, Linux servers (Ubuntu), and application/web servers. * Manage Office 365 email accounts and Azure services. * Monitor and maintain firewalls (ASA) and switches. * Install and maintain IIS web servers; configure Apache/Nginx where required. * Apply system patches, security updates, and SSL certificate renewals. * Ensure high availability through clustering, load balancing, and redundancy configurations. * Maintain infrastructure services such as DNS, DHCP, Certificate Authority, and file servers. * Document procedures and contribute to knowledge sharing. **Technical Requirements** **Core Skills:** * Cloud administration experience (Microsoft Azure and/or Google Cloud Platform). * Strong Linux administration (Ubuntu) and Windows Server 2022 skills. * VMware vSphere hands\-on experience. * Scripting ability (PowerShell, Bash). * Knowledge of networking fundamentals (Layer 2/Layer 3, VLANs, routing, switching). * Familiarity with web servers (IIS, Apache), SSL/TLS management, and HAProxy. * Backup and recovery experience (Veeam, SAN/NAS storage systems). * Monitoring tools experience (e.g., Zabbix). **Additional/Preferred Skills:** * Familiarity with Docker, Git, GitHub. * Knowledge of Microsoft SQL Server administration. * Experience with Windows Server clustering and Linux HA. **Junior System Administrator** * Works alongside a Senior System Administrator. * Focused on operational tasks, monitoring, patching, and first\-line troubleshooting. * Growth role with mentorship, with escalation path to senior staff for complex issues.