Top Systems Administrator Jobs

Administers and supports Azure customer enclaves for intelligence community environments. Responsibilities include architecture, technical leadership, system health monitoring, troubleshooting, incident escalation, patching, vulnerability remediation, configuration management, Azure solution deployment, Active Directory and Windows support, AVD administration, and operational maintenance. The role requires collaboration with Microsoft, customers, system owners, and migration teams while supporting C4 operational environments.

Own CloudFit’s people technology ecosystem, serving as the primary Workday administrator and supporting payroll continuity. Responsibilities include HRIS configuration, workflow design, integrations, reporting, data governance, employee lifecycle transactions, process automation, documentation, controls, and troubleshooting. The role partners with People Operations, Finance, Technology, and Compliance to improve scalable and compliant people processes, maintain payroll backup readiness, and deliver workforce dashboards and operational insights.

Provides senior Linux systems administration for mission-critical DoD supercomputing environments. Responsibilities include leading a local administration team, managing Red Hat and UNIX systems, tuning performance, installing and upgrading software, monitoring production systems, conducting acceptance testing, implementing STIG remediations, supporting security personnel, and maintaining compliance with operational standards.

Administer and support Hastings College’s IT infrastructure, including Windows Server, Hyper-V virtualization, Active Directory, networks, security systems, backups, and disaster recovery. Provide technical assistance, troubleshoot hardware and software issues, maintain documentation, support business continuity, collaborate with campus departments, and contribute to technology planning and service improvements.

Installs, configures, maintains, secures, and upgrades RHEL and Windows systems across physical, virtual, and cloud environments. Applies patches, conducts cybersecurity compliance scans, manages system performance, and supports RMF compliance. Develops documentation, troubleshooting guides, and configuration procedures; communicates technical risks and solutions to clients; analyzes network metrics; and helps modernize mission-critical infrastructure. The role also provides technical leadership and requires collaboration across systems administration, cybersecurity, virtualization, containerization, and cloud environments.

Provides tier-2 support and administration for ERP, CRM, financial, and operational systems. Responsibilities include troubleshooting user issues, maintaining data integrity, running SQL queries, monitoring integrations, supporting upgrades and testing, administering user access, documenting procedures, training employees, and coordinating with internal teams and vendors.

Administers and troubleshoots company hardware, software, networks, Wi-Fi, IP telephony, Active Directory, Office 365, Teams, and OneDrive. Installs, configures, upgrades, and repairs systems; manages employee accounts and equipment; evaluates new technology; supports workstation moves; and assists the IT Director with procedures and special projects.

Provides systems administration and operational support for intelligence training applications, servers, networks, LMS platforms, and end-user environments. Installs, configures, patches, troubleshoots, and maintains Windows, Unix, Linux, VMware, storage, VDI, and mission-planning systems. Manages accounts, permissions, backups, system baselines, images, and ticket resolution while supporting instructors and students. Serves as a cybersecurity liaison and subject matter expert for intelligence applications and training infrastructure.

Administers intelligence training applications, systems, servers, networks, virtual desktops, storage, and learning management platforms. Provides classroom and end-user support, troubleshooting, account administration, software and hardware deployment, system imaging, patching, backup and restoration, and performance monitoring. Manages VMware, NetApp, VxRail, Windows, Unix, and Linux environments; maintains technical documentation and courseware systems; tracks support tickets; and serves as a cybersecurity liaison for training networks. Requires active DoD Top Secret clearance and Security+ certification.

Manage, upgrade, configure, and tune DB2 for z/OS subsystems across enterprise R&D environments. Provide tier-3 DBA support, database design, utility management, SQL optimization, access control, high availability, data sharing, backup and recovery. Automate deployment and maintenance using Ansible, Python, REXX, JCL, REST APIs, and CI/CD integrations while collaborating with development, operations, and cloud architecture teams.

Provides advanced technical escalation and systems administration across endpoints, identity and access management, cloud platforms, operating systems, networking, and enterprise SaaS. Administers Intune, Jamf, Okta, and Google Workspace; troubleshoots Windows, macOS, Linux, and connectivity issues; supports infrastructure projects, migrations, security practices, documentation, and compliance. Collaborates with Engineering, Security, Networking, and IT Support teams and participates in on-call support.

Administer and optimize NetSuite and related financial systems, supporting configurations, integrations, permissions, troubleshooting, reporting, controls, and performance. Partner with Accounting, Tax, Order-to-Cash, and development teams on implementations and process improvements. Manage complex financial workflows including subscription billing, revenue recognition, and multi-system integrations while documenting requirements and delivering scalable solutions.

Supports and administers Oracle EPM Cloud, Hyperion, and other FP&A applications, databases, reports, and integrations. Maintains system performance, data integrity, security, and availability; troubleshoots issues and supports users. Develops requirements, data mappings, documentation, test cases, and upgrade implementations. Partners with finance, technology teams, vendors, and stakeholders on projects involving planning, forecasting, reporting, cost allocation, automation, and innovative enterprise application technologies.

Manage Windows domain environments, network architecture, structured cabling, web administration, and NASA IT security compliance. Provide complex troubleshooting, infrastructure project support, preventative maintenance, audits, and system upgrades. Deliver 24x7 IT support during international flight campaigns and peak mission periods, including field operations and network communications installations. The position requires U.S. citizenship, NASA PIV background screening, drug screening, and approximately two weeks of annual travel to New Mexico.

Supports enterprise Linux systems by assisting with installation, configuration, patching, monitoring, troubleshooting, compliance audits, vulnerability remediation, certificate management, and documentation. The role primarily supports RHEL environments, Red Hat Satellite, Ansible, Splunk, and SolarWinds Orion. Responsibilities also include incident management, FISMA and CIP compliance, information security activities, and legacy application support in air-gapped federal environments.

Administer and maintain mission-critical Linux and enterprise IT infrastructure in a highly classified DoD and Intelligence Community environment. Responsibilities include firewall and VPN administration, virtualization, automation with Python, Bash, and Ansible, system hardening, patching, vulnerability remediation, STIG compliance, monitoring, hardware deployment, documentation, and complex infrastructure troubleshooting. The role requires an active TS/SCI clearance with a current polygraph and extensive secure systems administration experience.

The IT Systems Administrator manages Microsoft 365, hybrid Active Directory, cloud, network, security, server, virtualization, endpoint, backup, and disaster recovery environments. Responsibilities include Tier 1–3 support, troubleshooting, patching, automation, system upgrades, asset management, vendor coordination, documentation, staff training, and HIPAA security compliance. The role administers Windows and Linux systems, UniFi and Fortinet infrastructure, Microsoft Intune, security tools, and related communications and access-control systems.

Administer and optimize enterprise Linux and Windows infrastructure, VMware virtualization, storage, networks, firewalls, cloud services, and business applications. Support business continuity and disaster recovery planning, backups, replication, testing, and system restoration. Contribute to cybersecurity operations, vulnerability management, incident response, access controls, and network security. Provide application, endpoint, Active Directory, and infrastructure support while coordinating vendors, maintaining documentation, and ensuring 24x7 availability.

Serves as the primary Azure Administrator supporting an Army training directorate. Manages Azure identity, governance, storage, compute, virtual networks, and Microsoft 365. Supports hardware, operating systems, applications, security, upgrades, backups, and archiving. Diagnoses system deficiencies, prepares reports and acquisition documentation, and supports configuration management and accreditation under DoD and Army directives. Requires extensive systems administration experience, an active DoD Secret clearance, cybersecurity certification, Azure expertise, and RMF knowledge.

Provides administrative support to the Information Systems department and Director. Responsibilities include screening calls, greeting visitors, handling mail, preparing documents, data entry, maintaining filing systems, scheduling appointments, answering routine inquiries, researching records, compiling reports, and supporting departmental paperwork flow. The role requires high school education or equivalent, 12–18 months of related experience or training, intermediate word-processing and typing skills, and basic 10-key proficiency.

Provides senior-level administration, troubleshooting, monitoring, configuration, and maintenance for Linux, Unix, Windows, server, storage, network, and mobile IT systems. Manages ServiceNow, ITSM processes, security patching, configuration management, access controls, compliance milestones, capacity planning, escalated incidents, and system integrations. Coordinates with security and system owners, supports mission architecture, and resolves complex hardware, software, and integration issues in an onsite environment requiring TS/SCI with polygraph clearance.

Administers, configures, supports, documents, and improves Ashoka’s global NetSuite OneWorld environment, including NetSuite Planning and Budgeting. Partners with Finance, Accounting, country offices, and technology resources to support implementations, remediation, standardization, and user adoption across approximately 30 countries.

Administer and optimize enterprise .NET web applications across Azure, Windows Server, IIS, and SQL Server environments. Responsibilities include deployments, Tier 3 support, troubleshooting, incident response, automation, CI/CD, monitoring, release coordination, infrastructure administration, security improvements, and customer collaboration. The role supports highly available SaaS platforms and partners with development, DevOps, DBA, and business teams to improve reliability and operational efficiency.

Administer and configure application and database servers across development, testing, and production environments. Maintain CGI Momentum Financials, Kubernetes clusters, Windows and Linux systems, and OpenShift-based infrastructure. Implement information assurance controls, automate administrative tasks, support development and deployment activities, document configurations, and contribute to project planning. Collaborate with developers, database administrators, security specialists, and customers while independently resolving technical issues and managing competing priorities.

Administer and maintain AWS-based development, test, and production systems across Windows and Linux environments. Manage OpenText and PeopleSoft applications, cloud infrastructure, batch processes, backups, user accounts, security monitoring, incident resolution, and system performance. Automate production processes, execute zero-downtime infrastructure changes, maintain NIST and intelligence-community compliance, and provide customer support including after-hours and on-call coverage.