Senior Systems Administrator

Quoris

. Administer, maintain, and optimize Windows and Linux server environments, including Active Directory, Group Policy, DNS, DHCP, and file services .

Posted 10/20/2026full-timeRemote • United StatesSenior💰 $95,000 - $112,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in administering and optimizing Windows and Linux server environments, with strong expertise in Active Directory, Group Policy, and cloud platforms like Microsoft Azure and AWS. Proficient in managing virtualization infrastructure, backup solutions, and implementing security controls in compliance with industry standards.

Highest-signal resume keywords

Windows Server AdministrationActive Directory ManagementMicrosoft Azure AdministrationVMware vSphere AdministrationBackup And Disaster Recovery Solutions

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Linux Server AdministrationGroup PolicyDNSDHCPTCP/IPVLANsScripting With PowerShellScripting With BashScripting With PythonTroubleshooting

Soft Skills

Excellent Communication SkillsProblem-Solving SkillsAbility To Work IndependentlyTime Management

Tools & Technologies

VMwareHyper-VSCCMIntuneJamfServiceNowFirewallsVPNsWireless SystemsEndpoint Management

Certifications & Qualifications

MCSAMCSEAzure Administrator AssociateVMware Certification (VCP)

Industry Keywords

Healthcare ITHIPAA Security RequirementsDisaster RecoveryBusiness ContinuityIdentity And Access Management

Tech Stack

Tools & technologies

AWSAzureCloudDNSFirewallsJamfLinuxPythonServiceNowTCP/IPVMware

About the role

Key responsibilities & impact

Administer, maintain, and optimize Windows and Linux server environments, including Active Directory, Group Policy, DNS, DHCP, and file services
Manage VMware or Hyper-V virtualization infrastructure
Administer Microsoft Azure or AWS cloud platforms
Manage switches, firewalls, VPNs, and wireless systems
Monitor system performance, capacity, and availability and proactively resolve issues
Manage backup, disaster recovery, and business continuity processes and testing
Administer endpoint management, patch management, software deployment, and device configuration
Support identity and access management systems, including Active Directory and Azure AD
Implement security controls, hardening standards, and compliance requirements
Lead and contribute to infrastructure upgrades, migrations, and deployments
Document system configurations, procedures, and runbooks
Provide senior-level technical escalation support for helpdesk and IT operations teams

Requirements

What you’ll need

5+ years of enterprise systems administration experience in a complex IT environment
Strong expertise in Windows Server administration, including Active Directory, Group Policy, DNS, and DHCP
Experience administering VMware vSphere or Microsoft Hyper-V
Hands-on experience with Microsoft Azure or AWS
Understanding of TCP/IP, VLANs, firewalls, and VPNs
Experience with backup and disaster recovery solutions and testing
Strong troubleshooting and problem-solving skills
Excellent communication skills with technical and non-technical stakeholders
Ability to work independently and manage multiple priorities
Must be eligible to work in the U.S. without company sponsorship
Experience in a healthcare IT environment and familiarity with HIPAA security requirements
Linux server administration experience
Microsoft certifications such as MCSA, MCSE, or Azure Administrator Associate
VMware certification (VCP) or equivalent
Experience with SCCM, Intune, or Jamf
Experience with ServiceNow or similar ticketing platforms
Scripting experience with PowerShell, Bash, or Python

Benefits

Comp & perks

Health insurance
Dental insurance
Vision insurance
401(k)
Competitive compensation
Collaborative culture