Senior Systems Administrator

CAE USA

. Design, implement, and maintain core infrastructure services critical to enterprise operations .

Posted 10/21/2026full-timeArlington • Texas • United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in managing and implementing complex IT infrastructure, including networking, operating systems, and cloud technologies. Proficient in troubleshooting, system design, and maintaining high availability and disaster recovery protocols.

Highest-signal resume keywords

Networking And Operating System ExperienceActive Directory ManagementCloud Technologies ImplementationDisaster Recovery PlanningIT Project Management

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

VPS Windows And Linux Server TechnologiesHypervisor TechnologiesDatabase TechnologiesWeb Server ManagementMail Security GatewaysIdentity Management And Federation ServicesPlatform Configuration And Monitoring ToolsTCP/IP NetworkingTroubleshooting SkillsSystem Documentation

Soft Skills

Self-MotivatedTeam CollaborationTask PrioritizationProcess Documentation

Tools & Technologies

Microsoft Office 365AzurePRTGSolarWindsNagiosIISApacheTomcatCitrix Virtual DesktopOmnissa Horizon

Certifications & Qualifications

VMware Certified Professional (VCP)CompTIA Network+Microsoft Certified Solutions Associate (MCSA)Cisco Certified Network Associate (CCNA)CISSP

Industry Keywords

Disaster RecoveryHigh AvailabilityService-Level AgreementsDigital TransformationOn-Call SupportDoD Personal Security ClearanceCloud EnvironmentsIncident ManagementChange ManagementCross-Training

Tech Stack

Tools & technologies

ApacheAzureCitrixCloudDNSLinuxMySQLNGINXPostgresSMTPSQLTCP/IPVMware

About the role

Key responsibilities & impact

Design, implement, and maintain core infrastructure services critical to enterprise operations
Administer, maintain, monitor, report on, and support operating systems, hypervisors, applications, and services
Apply best practices for service-level agreements, redundancy, high availability, and disaster recovery
Analyze problems, troubleshoot complex issues, and design resolutions for systems and applications
Lead the design, planning, installation, and support of computer systems, network hardware, software applications, cloud platforms, and peripherals
Support business-driven initiatives through planning and system design
Promote adoption of AI, identity federation, hybrid-cloud, and other digital transformation technologies
Plan, schedule, organize, control, report on, and monitor IT projects
Use the Help Desk ticketing system for incident and problem management, customer interaction, and follow-up
Create and maintain system configuration documentation, standard operating procedures, runbooks, and architecture diagrams
Maintain reports on system downtime, preventative maintenance plans, and disaster recovery
Contribute to cross-training and task/role planning for junior staff development
Assist with Active Directory, Group Policies, Users, and Computers
Provide Tier-3 escalation support and coordinate unresolved issues or emergencies according to business continuity and disaster recovery plans
Liaise with end users, management, and systems departments to resolve IT support issues
Participate in on-call rotation and change management processes
Perform shift-based continuous monitoring of on-premises, remote, and cloud compute, platforms, and storage for a global network infrastructure

Requirements

What you’ll need

Bachelor’s degree in a computer-related curriculum and 5 years of networking and operating system experience, or associate degree and 6+ years in networking and operating system design, test, and maintenance, or equivalent related experience
Experience managing/implementing VPS Windows and Linux server technologies, including RHEL, CentOS, Alma Linux, Rocky, and Ubuntu, on-premises and in cloud environments
Strong understanding of Active Directory, DFS, DNS, DHCP, and Group Policy management
Experience with Microsoft Office 365/Azure, including Exchange Online, Teams, SharePoint Online, Intune, Purview, Copilot Studio/Microsoft Foundry, Blob storage, NSG, Azure Firewall, and Conditional Access Policies
Experience with hypervisor technologies including Broadcom/VMware, Hyper-V, and Azure Local
Experience with virtual desktop technologies including Azure Virtual Desktop, Omnissa Horizon, and Citrix Virtual Desktop
Experience with database technologies including Microsoft SQL, PostgreSQL, and MySQL
Experience with web servers including IIS, Apache/Tomcat, and Nginx
Experience with mail security gateways including IronPort, Proofpoint, and Exchange Online Protection
Experience with identity management and federation services including Microsoft ADFS/Entra, Identity Federation, and Cisco Duo
Experience with platform configuration and monitoring tools including PRTG, SolarWinds, and Nagios
Knowledge of TCP/IP networking and related services including DNS, ARP, VLANs, SMTP, DHCP, and load balancers
Self-motivated and able to work in a team environment
Well-refined troubleshooting skills and ability to determine root causes and resolve systemic problems
Ability to manage multiple tasks and prioritize effectively
Ability to create, document, and follow processes and procedures
Must be eligible for DoD Personal Security Clearance
Must hold one or more of: VMware Certified Professional (VCP), CompTIA Network+, Microsoft Certified Solutions Associate (MCSA), Cisco Certified Network Associate (CCNA), or CISSP
U.S. citizenship required due to U.S. Government contract requirements
Must be able to work overtime and on/off shifts as required
Must be available for 24x7 on-call support
Able to support rack-mounted equipment up to 7 feet off the ground

Benefits

Comp & perks

Comprehensive and competitive benefits package
Flexibility that promotes work-life balance
Recognition, professional development, and advancement opportunities
Employee assistance with reasonable accommodations