System Administrator (Fully Remote) – Top US MNC (Enterprise Software)

About the role

We are looking for an experienced System Administrator to join a leading US multinational corporation that delivers enterprise software solutions. This fully remote position offers the chance to work on large‑scale, mission‑critical infrastructure that supports global business operations.

Key responsibilities

• Install, configure, administer and maintain Windows and Linux server environments.
• Monitor performance, capacity, availability and security of systems.
• Manage Active Directory, Group Policies, DNS, DHCP, file services and identity management.
• Perform patching, upgrades, backups, disaster‑recovery and routine maintenance.
• Provision user accounts, permissions and access controls.
• Troubleshoot server, OS, network, storage and infrastructure issues.
• Support virtualization platforms such as VMware vSphere, Hyper‑V or Proxmox.
• Collaborate with cloud, network, security and application teams.
• Automate tasks using PowerShell, Bash or Python.
• Maintain documentation, procedures and standards.
• Participate in upgrades, migrations, incident response and on‑call support.

Required profile

• 3+ years of experience as a System or Infrastructure Administrator.
• Strong knowledge of Windows Server and/or Linux administration.
• Hands‑on experience with Active Directory, DNS, DHCP and Group Policy.
• Experience with virtualization (VMware, Hyper‑V, Proxmox).
• Good understanding of networking fundamentals (TCP/IP, VPN, firewalls, routing, switching).
• Familiarity with backup, recovery, monitoring and system management tools.
• Proficiency in scripting (PowerShell, Bash, Python).
• Excellent troubleshooting and analytical abilities.

Required skills

• Windows Server
• Linux (various distributions)
• Active Directory
• Group Policy
• DNS
• DHCP
• VMware vSphere
• Hyper‑V
• Proxmox
• TCP/IP networking
• VPN
• Firewalls
• Routing & switching
• Backup & recovery solutions
• Monitoring tools (e.g., Nagios, Zabbix, SolarWinds, Prometheus, Grafana)
• PowerShell
• Bash
• Python
• AWS, Azure or Google Cloud (preferred)
• Microsoft 365 / Azure AD / Entra ID (preferred)
• Docker & Kubernetes (preferred)
• Ansible, Terraform or Puppet (preferred)
• SAN/NAS storage technologies (preferred)