Monday, October 27, 2025
Adtelligent Inc.

Sysadmin Team Lead

Posted: 5 days ago

Job Description

REQUIREMENTS:Extensive experience in Windows administration (10-11): system installation, office suite management, BitLocker configuration, and troubleshootingExperience with Linux (Ubuntu): system installation, additional package installation, disk encryptionMicrosoft 365 services administration: experience with Azure AD/Entra ID, handling enterprise applications, implementing OAuth2 for company resources, managing Exchange users, redirections, and redirect rules, troubleshooting mail delivery and phishing issues, and managing Microsoft Teams with global policiesProficiency in Hyper-V virtualization: creating and maintaining virtual machines for both Windows and Linux environmentsHands-on experience with RDP, SSH, TeamViewer, and AnyDesk for remote administrationStrong networking knowledge: ability to subnet networks, understand network and broadcast addresses, troubleshoot network issues, manage switches and patch panels, connect ports in patch panels, and work with network equipment (routers, switches)Expertise in Cisco: internet setup, dual provider failover, VLAN configuration, port forwarding (NAT), and configuration troubleshooting. CCNA certification is a plusExpertise in Mikrotik: internet setup, networking, firewall management, dual provider failover, VLANs, port forwarding (NAT), and configuration troubleshooting. MTCNA certification is a plusExperience with Ubiquiti equipment: controller administration, adding new access points, and troubleshooting Wi-Fi networksJira Cloud administration: managing users, groups, and projects, working with permission schemasWork with BAF: creating financial plans and coordinating hardware purchases with the teamExperience with Google Workspace: adding users and configuring redirectionsWILL BE A PLUS:Experience with Grafana and GitLab, including granting user permissionsKnowledge of OpenVPN server setup and configuration on UbuntuRESPONSIBILITIES:Team ManagementCoordinate the sysadmin team: assign tasks, monitor deadlines, and ensure project delivery.Conduct training sessions and mentor team members to enhance their skills.Participate in hiring new team members and assess their technical competencies.Financial PlanningDevelop budgets for hardware and software procurement.Collaborate with the team to assess technical resource needs.System AdministrationInstall, configure, and update Windows (10-11) and Linux (Ubuntu) operating systems on servers and workstations.Manage data encryption: configure BitLocker for Windows and equivalent tools for Linux.Troubleshoot system issues, including log analysis and performance optimization.Ensure the stable operation of office suites and essential software.VirtualizationDeploy and maintain virtual machines on Hyper-V for both Windows and Linux environments.Monitor and optimize resource usage in virtualized environments for efficiency.Configure backup and recovery processes for virtual machines.Remote AdministrationSet up secure remote access using RDP, SSH, TeamViewer, or AnyDesk.Configure and maintain VPN connections for remote team operations.Ensure the security of remote sessions and protect against unauthorized access.Network AdministrationDesign network infrastructure: create subnets, configure VLANs, and manage routing.Administer network equipment (Cisco, Mikrotik): configure routers, switches, and firewalls.Implement network redundancy with dual provider setups (failover).Configure Wi-Fi networks (Ubiquiti): deploy access points, manage controllers, and troubleshoot issues.Diagnose and resolve network problems, including port patching and switch management.Cloud ServicesAdminister Microsoft 365: manage users in Azure AD/Entra ID, configure OAuth2, and support Exchange and Teams.Manage Google Workspace: add users and configure email forwarding.Administer Jira Cloud: create groups, manage access permissions, and support workflows.SecurityImplement security policies: enforce data encryption, access controls, and protection against external threats.Configure monitoring systems (e.g., Zabbix or Prometheus) to track infrastructure health.Respond to security incidents and analyze their root causes.Automation (Preferred)Automate routine tasks using scripts (Bash, PowerShell) or tools like Ansible.Additional Responsibilities (Advantage)Configure OpenVPN servers for secure access.Administer GitLab: manage projects and user permissions.Work with cloud platforms (AWS, Azure) to deploy services.

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