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System Administrator
Job Location:
Job Location:
Fort Belvoir, VA - USA
Yearly Salary:
$ 78000 - 110000
Yearly Salary:
Posted:
21 August 2026 (14 days ago)
Posted:
Application Deadline:
18 November 2026
Application Deadline:
Vacancies:
1 Vacancy
Vacancies:
Job Summary
System Administrator
Location: Fort Belvoir VA
Security Clearance: Active Secret Security Clearance
Position Overview
Nationwide IT Services (NIS) is seeking an experienced System Administrator to support a Department of Defense customer at Fort Belvoir VA. This position is responsible for ensuring the reliability security and performance of enterprise servers network infrastructure and mission-critical systems across multiple operational locations.
The ideal candidate will have extensive experience administering Windows and/or Linux environments maintaining secure enterprise networks automating system administration tasks and providing advanced technical support. This role works closely with network engineers cybersecurity personnel and other IT professionals to deliver a stable highly available infrastructure that supports critical DoD operations.
Key Responsibilities
Nationwide IT Services is committed to delivering innovative technology solutions that support our nations critical missions. As part of our team youll work alongside experienced IT professionals supporting secure enterprise infrastructure for the Department of Defense. We offer a collaborative environment opportunities for professional growth and the chance to make a meaningful impact supporting our nations warfighters.
Salary range: $78000 to $110000 annually
The salary range is a general guideline. We consider several factors when determining base salary offers including the positions scope and responsibilities the candidates experience education and skills and current market conditions.
Location: Fort Belvoir VA
Security Clearance: Active Secret Security Clearance
Position Overview
Nationwide IT Services (NIS) is seeking an experienced System Administrator to support a Department of Defense customer at Fort Belvoir VA. This position is responsible for ensuring the reliability security and performance of enterprise servers network infrastructure and mission-critical systems across multiple operational locations.
The ideal candidate will have extensive experience administering Windows and/or Linux environments maintaining secure enterprise networks automating system administration tasks and providing advanced technical support. This role works closely with network engineers cybersecurity personnel and other IT professionals to deliver a stable highly available infrastructure that supports critical DoD operations.
Key Responsibilities
- Install configure administer and maintain enterprise servers operating systems and network software.
- Plan implement and optimize system configurations to maximize performance reliability and availability.
- Support server installations upgrades migrations and maintenance activities across multiple locations.
- Monitor system health troubleshoot performance issues and resolve complex technical problems.
- Manage application networking load balancing and fault-tolerant system configurations.
- Perform vulnerability management activities including identifying analyzing and remediating security vulnerabilities.
- Conduct system capacity planning and performance analysis recommending hardware and software upgrades as needed.
- Develop and maintain automation scripts and tools to improve operational efficiency and standardize administrative processes.
- Create and maintain system administration procedures technical documentation and operational standards.
- Provide technical leadership and guidance to junior system administrators and support personnel.
- Support end users by resolving advanced software hardware and connectivity issues while providing technical guidance and training.
- Collaborate with network cybersecurity and application teams to ensure secure reliable enterprise operations.
- Support infrastructure modernization initiatives and evolving mission requirements.
- Bachelors degree in information technology Computer Science Engineering or a related technical discipline.
- Seven (7) to ten (10) years of experience administering enterprise Windows and/or Linux server environments.
- Active Secret Security Clearance.
- Current CompTIA Security certification (preferred) or Network or Certified Network Defender (CND) certification.
- Experience administering enterprise servers networking and operating system environments.
- Experience performing vulnerability management system hardening and security best practices.
- Strong troubleshooting and analytical skills with the ability to resolve complex infrastructure issues.
- Experience supporting Department of Defense or other Federal Government enterprise environments.
- Experience with enterprise networking load balancing and high-availability system architectures.
- Knowledge of virtualization technologies enterprise storage and backup solutions.
- Experience with scripting and automation tools such as PowerShell Bash or Python.
- Familiarity with Microsoft Active Directory Group Policy DNS DHCP and enterprise server technologies.
- Experience supporting data center operations and infrastructure modernization efforts.
- Excellent communication skills with the ability to work effectively across cross-functional technical teams.
Nationwide IT Services is committed to delivering innovative technology solutions that support our nations critical missions. As part of our team youll work alongside experienced IT professionals supporting secure enterprise infrastructure for the Department of Defense. We offer a collaborative environment opportunities for professional growth and the chance to make a meaningful impact supporting our nations warfighters.
Salary range: $78000 to $110000 annually
The salary range is a general guideline. We consider several factors when determining base salary offers including the positions scope and responsibilities the candidates experience education and skills and current market conditions.
Required Experience:
Senior IC
