System Administrator

• Provide comprehensive L1/L2 technical support for a premier client
• Maintain enterprise infrastructure across Windows and Linux environments
• Manage server infrastructure and troubleshoot complex technical issues
• Provide advanced desktop support and maintain security protocols and system documentation
• Administer Windows Server 2016/2019/2022 and Active Directory
• Perform Linux system administration, shell scripting, and system maintenance
• Troubleshoot and maintain server hardware and networks, including TCP/IP, DNS, DHCP, and VLANs
• Support VMware vSphere and Hyper-V virtualization platforms
• Perform backup and recovery operations, patch management, security compliance monitoring, performance monitoring, and system optimization
• Resolve and escalate ITSM tickets
• Provide workstation break-fix support, IMAC operations, system imaging and deployment, asset lifecycle management, printer/peripheral support, Tech Bar support, hardware diagnostics, and network connectivity troubleshooting
• Provide regular onsite support in Tempe twice a week, with additional remote support responsibilities

Part-time L1/L2 System Administrator

• Administer, maintain, and support Windows 10/11 and Windows Server 2016/2019/2022 environments within a SCADA/Energy Management System real-time power operations system
• Plan, coordinate, and execute installation, testing, operation, and maintenance of Windows hardware and software in an air-gapped environment
• Plan and schedule installation of new or modified Windows servers, workstations, and applications
• Ensure compliance with configuration management processes and industry standards
• Manage the lifecycle of Windows hardware and peripheral equipment, including ordering, inventory, installation, deployment, maintenance, and decommissioning
• Perform Active Directory management, Group Policy administration, user account management, and resource sharing
• Administer VMware ESXi 8, Dell Precision Tower environments, Dell-EMC VxRail, Dell-EMC Data Domain, and HPE ProLiant servers
• Maintain availability, security, stability, and performance of critical infrastructure
• Identify and resolve Windows system issues to ensure operational continuity
• Provide technical support to end users and collaborate with cross-functional teams
• Create and maintain documentation for system logs, patching, security configurations, procedures, and troubleshooting guides

Windows Systems Administrator II

• Lead system administration for Linux and Windows-based systems in secure, mission-critical environments
• Diagnose and resolve hardware, software, and end-user technical issues
• Serve as a primary IT support contact, manage support tickets through resolution, and deliver responsive customer service
• Architect and manage complex server, storage, and virtualization infrastructure using VMware and KVM
• Perform OS installation, configuration, hardening, and patching in compliance with DoD STIGs and agency policies
• Monitor and tune system performance, conduct root cause analysis, and resolve complex issues
• Support backup/recovery strategies, disaster recovery plans, and continuity of operations
• Oversee and maintain automation scripts and infrastructure as code using Ansible, PowerShell, Bash, and related tools
• Maintain system documentation and configuration baselines, and support CM and RM activities
• Lead and support deployment of system enhancements and modernization initiatives for the Chinook program
• Collaborate with cybersecurity, network engineering, and software development teams
• Participate in security audits, incident response, and operational readiness activities
• Work in a fast-paced, classified environment supporting geospatial analytics, software development, and data services

Senior Systems Administrator/Helpdesk Engineer

• Provide Tier 1 and Tier 2 helpdesk support for users, resolving hardware, software, network, and system-related issues
• Install, configure, maintain, and troubleshoot Windows and Linux workstations and servers
• Manage user accounts, permissions, and access controls using Active Directory and related identity management tools
• Monitor system performance, identify issues proactively, and implement corrective actions to maintain system availability
• Install software updates, security patches, and operating system upgrades
• Document incidents, service requests, troubleshooting procedures, and system changes using established ticketing systems
• Collaborate with systems engineers, cybersecurity personnel, and network administrators to resolve complex technical issues
• Support system backups, disaster recovery activities, and configuration management processes
• Assist with workstation deployments, hardware refreshes, asset management, and inventory tracking
• Participate in on-call support and scheduled maintenance activities
• Oversee and maintain automation scripts and infrastructure as code
• Maintain system documentation, configuration baselines, and support CM and RM activities
• Participate in security audits, incident response, and operational readiness activities
• Contribute to continuous process improvements that enhance customer experience and operational efficiency