Senior Systems Administrator (Windows/IIS)
Senior Systems Administrator (Windows/IIS)
Location: Remote
Clearance Requirement: Must have an IRS High-Risk Background Investigation, IRS access processing, and required drug screening before CI network access.
About the Role
Nationwide IT Services (NIS) is seeking an experienced Senior Systems Administrator to support secure federal application environments. This role is responsible for maintaining Windows and IIS servers, supporting production systems, coordinating patching activities, monitoring system health, troubleshooting issues, and ensuring system security and reliability.
The ideal candidate has strong experience administering Windows-based environments, supporting IIS-hosted applications, and working in highly regulated federal environments.
Key ResponsibilitiesAdminister and maintain Windows servers and IIS environments
Provide software installations, upgrades, and system maintenance
Coordinate and implement security patches and updates
Monitor system performance and respond to alerts
Troubleshoot production issues and provide operational support
Manage user access and account support requests
Implement automation and operational improvements
Support application availability and performance requirements
Collaborate with developers, DBAs, cybersecurity, and infrastructure teams
Provide technical guidance, training, and support to project teams
Required Qualifications7+ years of Systems Administration experience
Strong Windows Server administration experience
Hands-on experience with IIS configuration and administration
Experience with patch management and system monitoring
Strong troubleshooting and production support skills
Experience supporting secure, enterprise-level environments
Excellent communication and collaboration skills
Preferred QualificationsExperience with SCOM or other enterprise monitoring tools
Experience supporting federal government environments
Familiarity with high-availability systems and SLA-driven operations
Experience coordinating with cybersecurity and infrastructure teams
Ability to support scheduled maintenance activities outside normal business hours when required
Technical Skills
Systems & InfrastructureWindows 11 / Windows Server Administration
Internet Information Services (IIS)
System Center Operations Manager (SCOM)
Monitoring and Alerting Tools
Access and Account Management
Server Operations and Security Maintenance
Application TechnologiesC#.NET, ASP.NET, VB.NET
.NET Framework
Visual Studio
JavaScript, AJAX
HTML, XML, Open XML
Database TechnologiesMicrosoft SQL Server Enterprise
SQL Administration and T-SQL
Database Backups and Maintenance
Crystal Reports
Business Objects
Cybersecurity & ComplianceFISMA
NIST Standards
IRS Internal Revenue Manual (IRM)
Security Control Assessments (SCA)
Enterprise Continuous Monitoring
Security Scan Remediation Tools (Guardium, Tripwire, AppScan)
Why Join NIS?100% Remote Opportunity
Support mission-critical federal programs
Collaborative and security-focused environment
Opportunity to work with modern enterprise technologies
Contribute to reliable, high-impact government systems
Location: Remote
Clearance Requirement: Must have an IRS High-Risk Background Investigation, IRS access processing, and required drug screening before CI network access.
About the Role
Nationwide IT Services (NIS) is seeking an experienced Senior Systems Administrator to support secure federal application environments. This role is responsible for maintaining Windows and IIS servers, supporting production systems, coordinating patching activities, monitoring system health, troubleshooting issues, and ensuring system security and reliability.
The ideal candidate has strong experience administering Windows-based environments, supporting IIS-hosted applications, and working in highly regulated federal environments.
Key ResponsibilitiesAdminister and maintain Windows servers and IIS environments
Provide software installations, upgrades, and system maintenance
Coordinate and implement security patches and updates
Monitor system performance and respond to alerts
Troubleshoot production issues and provide operational support
Manage user access and account support requests
Implement automation and operational improvements
Support application availability and performance requirements
Collaborate with developers, DBAs, cybersecurity, and infrastructure teams
Provide technical guidance, training, and support to project teams
Required Qualifications7+ years of Systems Administration experience
Strong Windows Server administration experience
Hands-on experience with IIS configuration and administration
Experience with patch management and system monitoring
Strong troubleshooting and production support skills
Experience supporting secure, enterprise-level environments
Excellent communication and collaboration skills
Preferred QualificationsExperience with SCOM or other enterprise monitoring tools
Experience supporting federal government environments
Familiarity with high-availability systems and SLA-driven operations
Experience coordinating with cybersecurity and infrastructure teams
Ability to support scheduled maintenance activities outside normal business hours when required
Technical Skills
Systems & InfrastructureWindows 11 / Windows Server Administration
Internet Information Services (IIS)
System Center Operations Manager (SCOM)
Monitoring and Alerting Tools
Access and Account Management
Server Operations and Security Maintenance
Application TechnologiesC#.NET, ASP.NET, VB.NET
.NET Framework
Visual Studio
JavaScript, AJAX
HTML, XML, Open XML
Database TechnologiesMicrosoft SQL Server Enterprise
SQL Administration and T-SQL
Database Backups and Maintenance
Crystal Reports
Business Objects
Cybersecurity & ComplianceFISMA
NIST Standards
IRS Internal Revenue Manual (IRM)
Security Control Assessments (SCA)
Enterprise Continuous Monitoring
Security Scan Remediation Tools (Guardium, Tripwire, AppScan)
Why Join NIS?100% Remote Opportunity
Support mission-critical federal programs
Collaborative and security-focused environment
Opportunity to work with modern enterprise technologies
Contribute to reliable, high-impact government systems