Senior Systems Administrator

SAIC

Senior systems administrator managing Azure, Windows, Linux, VMware, and M365 infrastructure for SAIC’s public-sector managed-services clients. Providing secure operations, troubleshooting, and 24x7 on-call support.

Posted 8/13/2026full-timeRemote • California • 🇺🇸 United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in managing Windows and Linux servers, Azure IaaS and PaaS services, and Active Directory. Proficient in troubleshooting application infrastructure and implementing security measures while ensuring operational efficiency.

Highest-signal resume keywords

Azure IaaS And PaaS AdministrationWindows Server AdministrationLinux Server AdministrationActive Directory ManagementVMware ESXi And vCenter Administration

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Performance TuningBackup And RecoveryInfrastructure As CodePowerShell ScriptingPython ScriptingAzure CLIDockerKubernetesJSONBicep

Tools & Technologies

ServiceNowMicrosoft TeamsOffice 365Exchange OnlineVeritas NetBackupNetApp

Certifications & Qualifications

Azure Solution Architect ExpertDevOps Engineer ExpertAzure AdministratorWindows Server Hybrid AdministratorUSPV+

Industry Keywords

IaaSPaaSActive DirectoryGroup PolicyAzure PoliciesDNSDHCPKerberosVPN ConnectivityEdge SMTP Server

Tech Stack

Tools & technologies

AzureDNSDockerKubernetesLinuxPythonServiceNowSMTPVMware

About the role

Key responsibilities & impact

Manage the client’s Windows Servers, Linux Servers, Azure, and M365 services and systems
Install and manage IaaS and PaaS services, M365 services, Active Directory, Exchange, and VMware
Perform performance tuning, storage management, backup and recovery, security, and operational and application support
Participate in a rotating 7x24 on-call support schedule
Implement, monitor, and maintain Azure IaaS and PaaS solutions across compute, storage, networking, and security
Troubleshoot application infrastructure, connectivity, security, and server performance issues in Azure and on-premises environments
Build, configure, and maintain VMware ESXi and vCenter environments
Build and configure on-premises mailbox and Edge SMTP servers and perform day-to-day maintenance
Administer Active Directory, Entra/Azure AD, Group Policy, Azure Policies, Exchange Online, Microsoft Teams, and Office 365
Manage incidents, changes, problems, and configurations using ServiceNow

Requirements

What you’ll need

Bachelor’s degree and five (5) years or more experience; four additional years’ experience may be considered in lieu of a degree
Certifications in Azure Solution Architect Expert, DevOps Engineer Expert, Azure Administrator, Windows Server Hybrid Administrator, or equivalent are highly recommended
Must be a US Citizen
Must be able to pass the California Department of Justice and FBI background check process
USPV+ is required
Must complete the USPV+ requirement before starting or receiving shipped equipment during onboarding
Extensive experience with Windows Server and Linux Server administrative tooling
Experience administering Azure IaaS and PaaS services, including compute, storage, networking, and security
Working knowledge of container infrastructure on Azure, including Docker, Kubernetes, and AKS
Experience with Azure backup, recovery, and high-availability solutions
Experience developing Infrastructure as Code using PowerShell, Python, Azure CLI, JSON, Bicep, or similar tools
Windows Server installation, configuration, upgrades, migration, and patching experience
Linux Server configuration, upgrades, migration, and patching experience
Experience troubleshooting Azure and on-premises application infrastructure, connectivity, and security issues
Experience troubleshooting CPU, memory, disk, and other server resource performance issues
VMware ESXi and vCenter administration experience
On-premises Exchange mailbox server and Edge SMTP server administration experience
Strong Active Directory and Entra/Azure AD design and server administration background, including Group Policy and Azure Policies
Knowledge of DNS, DHCP, Kerberos, Windows authentication, VPN connectivity, and client troubleshooting
Experience administering Exchange Online, Microsoft Teams, and Office 365
Experience using ServiceNow for incident, change, problem, and configuration management
Veritas NetBackup and NetApp storage administration are nice to have

Benefits

Comp & perks

🌐 Worldwide ❌ Jobs You've Hidden ⭐️ Saved Jobs ✅ Applied Jobs ✉️ Email Alerts 👤 Account SAIC Website LinkedIn All Job Openings 10,000+ employees Founded 1969 ☁️ SaaS 📣 Marketing 🏢 Enterprise 🔥 Funding within the last year 💰 $500M Post-IPO Debt - SAIC on 2025-09 SaaS
Marketing
Enterprise SAIC is represented in the supplied content by marketing and product copy that matches Bitly — a cloud-based link management and QR-code platform. The material describes a SaaS offering for URL shortening, dynamic QR Codes, link analytics, mobile-friendly landing pages, branded links, UTM campaign tracking, digital business cards, developer APIs and AI-enhanced features. It targets marketers, developers, and enterprises across industries (retail, CPG, hospitality, media, healthcare, finance, education) and emphasizes integrations, analytics, and enterprise-grade capabilities. Note: the provided text appears to be Bitly’s website content rather than information about SAIC; if you intended the defense/technology firm SAIC (Science Applications International Corporation), please provide relevant content. Senior Systems Administrator 🔥 0 minutes ago 🏄 California – Remote ⏰ Full Time 🟠 Senior ⌨️ Systems Administrator Apply Now Customize resume + cover letter Report problem ☆ Save ☑️ Mark as applied ❌ Hide 📋 Description
Manage the client’s Windows Servers, Linux Servers, Azure, and M365 services and systems
Install and manage IaaS and PaaS services, M365 services, Active Directory, Exchange, and VMware
Perform performance tuning, storage management, backup and recovery, security, and operational and application support
Participate in a rotating 7x24 on-call support schedule
Implement, monitor, and maintain Azure IaaS and PaaS solutions across compute, storage, networking, and security
Troubleshoot application infrastructure, connectivity, security, and server performance issues in Azure and on-premises environments
Build, configure, and maintain VMware ESXi and vCenter environments
Build and configure on-premises mailbox and Edge SMTP servers and perform day-to-day maintenance
Administer Active Directory, Entra/Azure AD, Group Policy, Azure Policies, Exchange Online, Microsoft Teams, and Office 365
Manage incidents, changes, problems, and configurations using ServiceNow 🎯 Requirements
Bachelor’s degree and five (5) years or more experience; four additional years’ experience may be considered in lieu of a degree
Certifications in Azure Solution Architect Expert, DevOps Engineer Expert, Azure Administrator, Windows Server Hybrid Administrator, or equivalent are highly recommended
Must be a US Citizen
Must be able to pass the California Department of Justice and FBI background check process
USPV+ is required
Must complete the USPV+ requirement before starting or receiving shipped equipment during onboarding
Extensive experience with Windows Server and Linux Server administrative tooling
Experience administering Azure IaaS and PaaS services, including compute, storage, networking, and security
Working knowledge of container infrastructure on Azure, including Docker, Kubernetes, and AKS
Experience with Azure backup, recovery, and high-availability solutions
Experience developing Infrastructure as Code using PowerShell, Python, Azure CLI, JSON, Bicep, or similar tools
Windows Server installation, configuration, upgrades, migration, and patching experience
Linux Server configuration, upgrades, migration, and patching experience
Experience troubleshooting Azure and on-premises application infrastructure, connectivity, and security issues
Experience troubleshooting CPU, memory, disk, and other server resource performance issues
VMware ESXi and vCenter administration experience
On-premises Exchange mailbox server and Edge SMTP server administration experience
Strong Active Directory and Entra/Azure AD design and server administration background, including Group Policy and Azure Policies
Knowledge of DNS, DHCP, Kerberos, Windows authentication, VPN connectivity, and client troubleshooting
Experience administering Exchange Online, Microsoft Teams, and Office 365
Experience using ServiceNow for incident, change, problem, and configuration management
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