System Administrator

• Support government accounts due to federal export-control regulations
• Provide advanced system administration and lab operations support for hardware, network, and software environments used by HPE HPC & AI Performance Engineering teams
• Serve as a senior technical contributor and lab expert, providing design guidance, operational leadership, and escalation-level troubleshooting across complex HPC and AI lab environments
• Collaborate with AI benchmarking, R&D, and performance engineering teams to design and operate lab environments that meet internal, partner, and customer requirements
• Install, configure, and support job scheduling and resource management tools to maximize lab utilization.

HPC AI Systems Administrator

• An HPC Systems Administrator is responsible for managing and maintaining high-performance computing (HPC) systems, including hardware, software, and network infrastructure, ensuring optimal performance and stability for computationally intensive research or business applications.
• Installing and configuring HPC hardware (clusters, servers, storage).
• Deploying and configuring HPC software (operating systems, job schedulers, parallel programming environments).
• Setting up network infrastructure for high-speed data transfer.
• Monitoring system health and resource utilization.
• Analyzing job performance and identifying bottlenecks.
• Optimizing job scheduling algorithms to maximize throughput.
• Tuning system parameters for optimal performance.
• Providing technical support to HPC users on system access, job submission, and troubleshooting.
• Developing user documentation and training materials.
• Implementing security policies and procedures for HPC systems.
• Managing user access and permissions.
• Monitoring for potential security threats.
• Implementing data backup strategies for HPC systems.
• Testing and maintaining disaster recovery plans.
• Coordinating hardware repairs and upgrades with vendors.

HPC System Administrator

• Provide implementation and support of Informatica Power Center, Informatica Cloud tools (IDMC), Tibco Data Virtualization, Splunk including patches and upgrades for environments
• Set up and configuration of enterprise production, QA, development and disaster recovery environments
• Back-up and recovery of software, repository and configurations
• Disaster recovery planning, design, execution and documentation
• Monitoring environments and suggesting improvements for stability and performance tuning
• Provide technical support and work with infrastructure teams to ensure an effective operating environment including throughput, repository sizing, capacity planning and maintenance
• Make proposals and participate in the planning of new and enhanced technologies or services within area of expertise
• Define standards and implement best practices to manage and support all environments
• Creation and maintenance of technical documentation, deployment diagrams and checklists
• Automating routine tasks where appropriate
• Develop operating system scripts, data transfers, monitoring, etc.

ETL System Administrator II

• Resolve IT hardware and software infrastructure issues (servers, network, security, etc.) using advanced systems analysis techniques
• Analyze, troubleshoot, and resolve issues with IT infrastructure, including user systems, servers, storage, and network connectivity
• Provide system administration for assigned infrastructure and ensure robust security measures are in place
• Apply security patches and operating system upgrades to maintain the security and integrity of the technical environment
• Support new infrastructure projects and initiatives
• Maintain comprehensive configuration documentation for all assigned infrastructure
• Collaborate closely with architects, technical leads, software developers, testers, security teams, and stakeholders
• Be available for off-hours work as needed for support and deployments

Infrastructure/Systems Administrator

• Provide support for applications, services and servers at the University of Massachusetts Global.
• Responsible for the setup, installation, configuration, upgrading, and evaluation phases of providing applications, services, and servers for customer use.
• Provide technical, instructional, and administrative support to the UMass Global constituencies related to applications, services, and servers.
• Manage application and server backups across the enterprise and cloud (AWS and Azure).
• Diagnose, replace, upgrade, and repair applications, services, and servers for Windows and Linux.
• Install new, upgrade existing, and troubleshoot application, service, or server related issues.
• Use and maintain tools such as Azure Update Manager to manage operating system patching and enterprise services.
• Write and maintain PowerShell scripts for reporting and system automation.
• Handle technical inventories, shipping logistics, and equipment organization.
• Perform work in accordance with systems diagrams.
• Create and maintain training documentation for team members supporting applications and services.
• Continuously assess all documented processes for improvements.
• Provide high quality support to university customers.
• Work with teams and team members to provide our customers an excellent experience.
• Perform other duties as assigned.

Systems Administrator

• Manage the day-to-day operations and administration of our global Research and Development Lab (RDL) networks.
• Monitor the health, performance, and uptime of all RDL hardware.
• Implement localized VLAN adjustments, IP address allocations, and switch port provisioning.
• Execute hardware diagnostics, physical cabling checks, and firmware/OS updates.
• Provision local user accounts and role-based permissions directly on Linux-based jump hosts.
• Manage access credentials in a strict, decentralized non-Active Directory environment.
• Execute and monitor the secure transfer of "transfer bundles" containing OS packages and software libraries across the air gap.
• Act as the primary technical point of contact for HPS design engineers needing network troubleshooting.

Research & Development Labs Network Admin

• Act as the onsite lead for bringing new clinics onto Harbor's IT stack, including networking, desktop services, telephony, and clinical endpoints
• Oversee site IT builds, clinic cutovers, and post-go-live stabilization
• Manage imaging, deployment, and lifecycle of desktops, laptops, printers, and clinical devices
• SaaS system administration and account lifecycle management
• Apply Harbor's configuration standards and patching practices in coordination with IT and Security
• Handle elevated (Tier 3+) support work routed from the IT Service Desk
• Partner with vendors and IT leadership to maintain reliable, secure clinic networks
• Troubleshoot connectivity, telephony, and device escalations
• Maintain asset inventories and ensure accurate equipment tracking across all sites
• Support endpoint security, enforce security protocols, and maintain secure configuration practices
• Surface risks and anomalies to Harbor's Cybersecurity team
• Operate independently on clinic integration projects from scoping through go-live
• Balance project responsibilities with day-to-day support and operations
• Maintain documentation of site configurations, standards, and changes
• Provide timely updates and feedback to ensure continuity across the team

Regional IT Systems Administrator

• Design, build, and maintain automation solutions that eliminate repetitive manual work across infrastructure, identity, and Microsoft 365 services.
• Develop and manage Infrastructure as Code (IaC) to provision, configure, and govern cloud and on-premises resources in a repeatable, auditable way.
• Build automation and integrations using the Microsoft Graph API to streamline identity, licensing, Teams, Exchange, and SharePoint operations.
• Author and maintain PowerShell scripts and runbooks to automate provisioning, reporting, lifecycle management, and remediation tasks.
• Design, implement, and operate Microsoft cloud solutions including Azure services (compute, networking, storage, monitoring), Entra ID (access controls, roles, MFA, conditional access), and Microsoft 365 (Exchange, Teams, Viva Engage, SharePoint).
• Configure and maintain Windows Server environments across cloud and on-premises, including Active Directory, Group Policy, DNS, DHCP, and IIS.
• Maintain the security, compliance, disaster recovery readiness, and performance of cloud and on-premises services.
• Identify root causes of recurring issues and eliminate them through automation rather than repeated manual resolution.
• Collaborate with cross-functional teams (Security, Application Support, Data, PMO) to deliver scalable and secure solutions.
• Perform other duties as needed.

Systems Administrator Engineer – Cloud, Automation

• Design, deploy, administer, and secure Azure resources
• Manage secure file transfer solutions
• Collaborate with DevOps and Database teams
• Perform advanced network troubleshooting

Network Systems Administrator, Azure

• Supports the installation, configuration, and maintenance of purchased applications or application frameworks.
• Participates in the design configuration, problem diagnosis, maintenance, and installation of application systems and/or user group profiles.
• Validates system functionality after changes.
• Participates in testing and installing new software releases and application system upgrades.
• Analyzes, monitors, and fine-tunes the application system to achieve optimum performance levels.
• Works with internal infrastructure teams and vendors to resolve issues with hardware and software.
• Maintains a comprehensive operating system hardware and software configuration database/library of all supporting documentation to ensure data integrity.
• Participates with application system problem resolution by working with application developers, vendors and internal infrastructure team members to troubleshoot.

Application Systems Administrator – Oracle, Linux Systems

• Monitor and maintain appropriate Cyber Security controls and ensure Operational Security requirements are according to the performance standards established in the C4IM Services List (latest version) for all assigned servers.
• Maintain all aspects of the Network Attached Storage (NAS) or any other back-up solution the Government will establish as a standard back-up solution (i.e. Global Enterprise Solution).
• Maintain control and access of data storage, space allocation, and device usage for authorized users; analyze file organization and database structure, taking action as required to eliminate deficiencies; set alarms and report unauthorized access attempts/intrusions, correct weaknesses/vulnerabilities, and document permission violations at local, group, or global level.
• Perform local database administration for standard database software for common user services.
• Perform backups for standard databases for common-user services.
• Manage virtual filers including Virtual File Manager system.
• Identify and replace failed hardware with government furnished replacements; ensure all back-up systems are operating on latest versions of software and have required patches and patches.
• Create and manage Group Policy Objects.
• Assist with development of an updated Quarterly Enterprise System Management Architectural Design Document describing service level offerings and planned enhancements.
• Draft and maintain SOP documents for the functional category.
• Contribute to T&T proposal activities and all other duties as assigned by T&T managers.

• Monitor and maintain appropriate Cyber Security controls
• Ensure Operational Security requirements are according to performance standards
• Maintain all aspects of the Network Attached Storage (NAS)
• Maintain control and access of data storage, space allocation, and device usage for authorized users
• Analyze file organization and database structure
• Set alarms and report unauthorized access attempts/intrusions
• Perform local database administration for standard database software
• Manage virtual filers including Virtual File Manager system
• Identify and replace failed hardware
• Create and manage Group Policy Objects
• Assist with development of updated Quarterly Enterprise System Management Architectural Design Document
• Draft and maintain SOP documents for functional category
• Contribute to T&T proposal activities and other duties as assigned

• Manage the macOS and Windows fleet end to end.
• Write and maintain Bash and PowerShell Worklets in Automox to automate endpoint actions.
• Provision, deprovision, and govern access across our identity provider and SaaS estate.
• Administer access and IAM across our cloud accounts (AWS and Azure).
• Design and deploy automations that integrate IT, identity, and SaaS systems.
• Own the internal ticket queue and handle level 1 and escalated level 2 tickets.
• Analyze current systems and processes, spot inefficiencies, and propose and ship the fixes.

IT Systems Administrator

• Image, configure, and upgrade servers with Linux operating systems
• Configure and manage multiple root slots hosting varied operating system images
• Provide design guidance and operational support for virtualized lab infrastructure
• Provide design guidance for lab storage solutions
• Provide guidance for hardware and software installation and configuration
• Collaborate with AI benchmarking, R&D, and performance engineering teams
• Design lab layouts, networks, and operational policies
• Prioritize and coordinate lab work activities
• Make recommendations on lab resource usage
• Oversee and support lab transitions
• Install, configure, and support job scheduling and resource management tools
• Serve as a technical mentor to junior system administrators and lab staff
• Communicate lab successes, risks, failures, and issues to management

HPC AI Linux Systems Administrator

• Manage day-to-day operations of the ServiceNow platform, including user access, instance health, scheduled jobs, access governance, license management and environment management.
• Design, configure, and maintain ServiceNow modules such as ITSM, HRSD, ITOM, CMDB, and custom applications to meet business requirements.
• Ensure platform configurations comply with industry regulations (e.g., FedRAMP, NIST, DFARS, ITAR) and internal cybersecurity policies.
• Develop and maintain automated workflows, business rules, and integrations to streamline business processes.
• Support integration with enterprise systems (e.g., ERP, HRIS, IAM) using APIs, MID servers, and integration hubs.
• Create and maintain performance analytics, dashboards, and reports to support operational visibility and decision-making.
• Participate in change control processes, ensuring updates are tested, documented, and deployed with minimal disruption.
• Work closely with other DT teams, cybersecurity, compliance, and business units to gather requirements and deliver solutions aligned with strategic goals.
• Perform platform upgrades, patching, cloning, and feature rollouts while minimizing downtime and ensuring compatibility with existing configurations.

ServiceNow Sys Administrator

• Serve as a technical lead for system administration activities, coordinating issue resolution and daily operations with Government, contractor, cybersecurity, network, application, and service provider teams.
• Install, configure, maintain, patch, monitor, troubleshoot, and optimize Army-approved server operating systems, Windows services, enterprise applications, and supporting infrastructure.
• Administer Active Directory and core enterprise services, including user and computer accounts, security groups, permissions, Group Policy, DNS, DHCP, SMTP, file shares, certificate services, DoD PKI, and email/account request processes.
• Manage virtual, storage, and backup environments, including virtual servers, hosts, clusters, VDI components, NAS/SAN resources, file permissions, replication, recovery, disaster recovery, and continuity of operations support.
• Support SCCM and endpoint management activities, including software packaging, imaging, operating system deployment, patch deployment, third-party software deployment, client health monitoring, inventory, and compliance reporting.
• Monitor and resolve system administration trouble tickets, recommend improvements to performance, reliability, security, and infrastructure operations, and support contingency, emergency, exercise, surge, and after-hours requirements.

Senior System Administrator

• Administer and support Microsoft Azure services, including virtual machines, storage, networking, and identity integration.
• Manage Azure Active Directory, including user accounts, groups, access controls, and role‑based access.
• Monitor cloud resources to ensure performance, availability, and cost efficiency.
• Support hybrid environments integrating on‑premises infrastructure with Azure services.
• Maintain accurate system documentation and operational procedures.
• Collaborate with IT support, network, security, and application teams to resolve incidents and implement changes.
• Provide Tier 2 / Tier 3 escalation support for complex technical issues.

System Administrator – Information Technology

• Provide administration, sustainment, and operational support for application services, virtualization infrastructure, and virtual desktop infrastructure operating within Classified Digital Services environments.
• Install, configure, maintain, patch, secure, and troubleshoot Windows-based application servers, virtual machines, virtual desktops, supporting services, and associated platform components.
• Support VDI platforms and virtual application delivery technologies, including virtual desktop pools, persistent and non-persistent desktop images, connection brokers, agent software, user profiles, published applications, and supporting infrastructure.
• Troubleshoot complex issues involving application delivery, virtual desktops, virtualization platforms, authentication, storage, networking, user profiles, printing, peripheral access, performance, and security-tool integration.
• Work with cybersecurity professionals to support vulnerability remediation, application and operating system patching, DISA STIG compliance, secure configuration baselines, scanning activities, findings resolution, and audit evidence requirements.
• Support the integration of application services and VDI platforms with enterprise identity, endpoint-management, monitoring, logging, vulnerability-management, and cybersecurity capabilities.
• Use automation and scripting technologies such as PowerShell, Ansible, Python, or comparable tools to improve application deployment, VDI administration, patching, configuration management, compliance validation, and operational sustainment activities.
• Identify opportunities to automate repetitive administration tasks, image maintenance, application delivery, health checks, reporting, patch validation, or secure configuration activities.
• Participate in testing and implementation of infrastructure changes, application upgrades, desktop-image updates, software deployments, security patches, and platform modernization initiatives.
• Assist with monitoring service health, platform capacity, virtual desktop availability, application performance, resource utilization, system events, and operational trends.
• Support account administration, privileged access, application permissions, service accounts, group-policy dependencies, and other access-control requirements in accordance with approved security procedures.
• Create and maintain standard operating procedures, system administration guides, application support documentation, VDI support procedures, architecture diagrams, automation documentation, test plans, implementation plans, troubleshooting guides, and knowledge articles.
• Provide technical support during service disruptions, root-cause investigations, recovery activities, planned maintenance, and mission-critical operational events.
• Perform other duties and assignments in support of CDS application, virtualization, endpoint, and cybersecurity operations.

Virtual Applications System Administrator

• Provide Level 3–4 system administration, solution consultation, and engineering for Microsoft Exchange Online and on-premises Exchange Server SE infrastructure, including hybrid configuration management, SMTP relay governance for business-critical systems, mail flow architecture (connectors, transport rules, DNS/SPF/DKIM/DMARC), and mailbox lifecycle management.
• Administer SharePoint Online and OneDrive for Business, including site provisioning and governance, permission and access management, external sharing policies, Information Steward responsibilities, storage management, site modernization, file share-to-SharePoint migrations, and monitoring of high-risk admin changes across all management interfaces.
• Administer Microsoft Teams, including tenant policy, Teams governance (ownership lifecycle, archival processes), compliance, and app ecosystem governance (approval gates, permission policies, audits).
• Perform security patching, update management, and security hardening across servers and the M365 tenant; manage Entra ID role assignments (PIM/JIT), RBAC for applications, and conduct periodic admin access reviews across Exchange, SharePoint, and Teams admin roles to ensure least-privilege compliance.
• Support Microsoft Purview compliance functions across the M365 ecosystem, including eDiscovery and legal holds, Data Loss Prevention (DLP), retention labels and policies, audit log management, and data privacy requests (GDPR/SOX) spanning Exchange, SharePoint, Teams, and OneDrive content.
• Develop and maintain PowerShell scripts and automation for administrative tasks, reporting, health monitoring, bulk operations, and governance signals (e.g., owner attestation, guest recertification, OneDrive sync monitoring) across all M365 workloads.
• Actively monitor Microsoft Message Center posts, roadmap changes, and new feature releases; evaluate and prepare for rollouts; coordinate change communications with affected stakeholders; and drive feature enablement in partnership with Microsoft and internal teams (Security, Records Management, Data Privacy, Computer Services).
• Support strategic enterprise projects including migrations, Exchange infrastructure upgrades, licensing support, Microsoft feature deprecation, and cross-workload lifecycle alignment (Teams ↔ SharePoint ↔ Exchange) for retention and eDiscovery.

Microsoft 365 System Administrator

• Administer and maintain network enterprise infrastructure including switches, routers, wireless access points, and associated cabling and hardware.
• Monitor network performance and system health, respond to alerts and incidents, investigate anomalies and escalate complex issues to senior staff as appropriate.
• Participate in the design and implementation of multi-server Windows and Linux physical and virtual environments including IP address schemes, DNS, and network Ether-Channel (Bonding) configurations.
• Assist with network security administration including firewall rule reviews, content filtering, and log collection and escalate security events to appropriate teams.
• Provide telecommunications support including design, project management, analysis, and implementation of new voice and video technologies.
• Design, configure, deploy and maintain analog and digital telephony systems using various technologies including Voice over Internet Protocol (VoIP), and session initiation protocol (SIP).
• Administer DNS, DHCP, and IP address management, and maintain accurate network documentation and asset inventory.
• Support hybrid network connectivity, including cloud-based services and integration with on-premises infrastructure as needed.
• Manage assigned projects and program components to deliver services in accordance with established objectives and within budget.
• Maintain VPN and remote access infrastructure including user access configuration, certificate management, and basic troubleshooting for site-to-site and remote access connections.
• Troubleshoot malfunctions on network hardware and software applications, telephones, and security systems to resolve operational issues.
• Track and resolve support tickets while documenting issues, resolutions and operational procedures for future reference.
• Manage assigned infrastructure projects and contribute to capacity planning, system reliability, availability, security, and cost-effective network design.

System Administrator jobs in Texas

See all jobs on JobTailor

HPC AI Systems Administrator

HPC System Administrator

ETL System Administrator II

Infrastructure/Systems Administrator

Systems Administrator

Research & Development Labs Network Admin

Regional IT Systems Administrator

Systems Administrator Engineer – Cloud, Automation

Network Systems Administrator, Azure

Application Systems Administrator – Oracle, Linux Systems

System Administrator

System Administrator

IT Systems Administrator

HPC AI Linux Systems Administrator

ServiceNow Sys Administrator

Senior System Administrator

System Administrator – Information Technology

Virtual Applications System Administrator

Microsoft 365 System Administrator

Network Systems Administrator