System Administrator

CareerUS Solutions; United States; On-site; USD 65,000 - 95,000; Full time

Job summary

CareerUS Solutions is seeking an experienced System Administrator to manage and troubleshoot IT infrastructure across Windows and Linux environments. You will handle AD, DNS/DHCP, backups, DR, and security controls while supporting cloud platforms like AWS and Azure.

Applicants should have strong scripting skills (PowerShell, Bash, Python) and a track record of maintaining reliable systems, monitoring performance, and collaborating with network, security, and applications teams.

Qualifications

• Strong experience managing Windows Server and Linux environments.

Responsibilities

• Install, configure, maintain, and troubleshoot servers and IT systems.
• Manage Windows and Linux operating systems.
• Monitor system performance, availability, and capacity.
• Manage user accounts, permissions, and access controls.
• Perform system upgrades, patches, and security updates.
• Configure and maintain Active Directory, Group Policy, and DNS/DHCP.
• Manage backups, disaster recovery, and system restoration procedures.
• Troubleshoot hardware, software, network, and system issues.
• Monitor system logs and investigate performance or security issues.
• Support cloud infrastructure such as AWS and Azure.
• Implement and maintain security controls and endpoint protection.
• Automate routine administrative tasks using scripting tools.
• Maintain system documentation and procedures.
• Collaborate with network, security, cloud, and application teams.
• Provide technical support and respond to system incidents.

Skills

Windows Server

Linux

Active Directory

DNS

DHCP

Group Policy

Microsoft 365

VMware

Hyper-V

AWS

Azure

TCP/IP

VPN

Firewalls

Routing

Backup and disaster recovery

System monitoring

PowerShell

Bash

Python

Tools

VMware

Hyper-V

Windows Admin Center

Job description

We are looking for an experienced System Administrator to manage, maintain, and troubleshoot an organization's IT infrastructure. The ideal candidate will have strong experience with servers, networks, cloud environments, security, and system monitoring.

Key Responsibilities

• Install, configure, maintain, and troubleshoot servers and IT systems.
• Manage Windows and Linux operating systems.
• Monitor system performance, availability, and capacity.
• Manage user accounts, permissions, and access controls.
• Perform system upgrades, patches, and security updates.
• Configure and maintain Active Directory, Group Policy, and DNS/DHCP.
• Manage backups, disaster recovery, and system restoration procedures.
• Troubleshoot hardware, software, network, and system issues.
• Monitor system logs and investigate performance or security issues.
• Support cloud infrastructure such as AWS, Azure, or Google Cloud.
• Implement and maintain security controls and endpoint protection.
• Automate routine administrative tasks using scripting tools.
• Maintain system documentation, configurations, and operational procedures.
• Collaborate with network, security, cloud, and application teams.
• Provide technical support and respond to system incidents.

Required Skills

• Strong knowledge of Windows Server and Linux.
• Experience with Active Directory, DNS, DHCP, Group Policy, and Microsoft 365.
• Knowledge of virtualization technologies such as VMware or Hyper-V.
• Experience with cloud platforms such as AWS or Azure.
• Understanding of networking concepts including TCP/IP, VPN, firewalls, and routing.
• Experience with backup and disaster recovery solutions.
• Knowledge of system monitoring and troubleshooting tools.
• Scripting experience with PowerShell, Bash, or Python.
• Strong problem-solving and communication skills.