What are the responsibilities and job description for the System Administrator position at GCA?
Position Overview
The System Administrator is responsible for installing, configuring, troubleshooting, and maintaining hardware and software systems and administering system accounts supporting OPTEVFOR Cyber Operational Test & Evaluation (OT&E) missions. The role ensures the security, availability, and reliability of Cyber OT&E infrastructure, toolsets, and flyaway kits, and provides technical consultation on network, system, and application issues. The System Administrator supports operational test requirements tailored to individual test events and provides real-time troubleshooting support during test execution.
Security Clearance Requirement:
Eligibility for Top Secret / Sensitive Compartmented Information (TS/SCI).
Qualifications
Infrastructure and Systems Administration
Knowledge
The System Administrator is responsible for installing, configuring, troubleshooting, and maintaining hardware and software systems and administering system accounts supporting OPTEVFOR Cyber Operational Test & Evaluation (OT&E) missions. The role ensures the security, availability, and reliability of Cyber OT&E infrastructure, toolsets, and flyaway kits, and provides technical consultation on network, system, and application issues. The System Administrator supports operational test requirements tailored to individual test events and provides real-time troubleshooting support during test execution.
Security Clearance Requirement:
Eligibility for Top Secret / Sensitive Compartmented Information (TS/SCI).
Qualifications
- Minimum of five (5) years of experience managing Windows Server and Active Directory environments, including installation, configuration, maintenance, troubleshooting, and operational support of computer systems and servers
Infrastructure and Systems Administration
- Install, configure, maintain, and troubleshoot server and workstation hardware and software supporting Cyber OT&E infrastructure
- Administer system accounts, group policies, and access controls to ensure compliance with organizational standards and security requirements
- Maintain the physical and logical security of network and system infrastructure and protect the integrity of resident data
- Manage multiple systems operating across one or more operating system platforms
- Implement and maintain STIGs, security patches, and operating system/application updates in accordance with DoD/DON policies and guidance
- Maintain system and network security posture, including regular security monitoring to detect potential intrusions
- Review ACAS/Tenable scan results and remediate identified vulnerabilities
- Apply operating system, network, and application hardening techniques to reduce attack surface
- Support secure VPN usage and access control mechanisms as required
- Manage backup and recovery solutions and procedures in accordance with DoD/DON policies
- Perform backup operations, verify job completion, and test recovery procedures
- Monitor system, server, and network performance, availability, and capacity
- Review system and application logs to identify faults, performance issues, or security concerns
- Perform file archival and purging activities as required
- Administer and maintain Cyber OT&E toolsets and flyaway kits, ensuring readiness for test execution
- Develop and maintain the master image for the Cyber OT&E toolset in accordance with Government requirements
- Clone and validate toolset builds to meet operational timelines and test-specific requirements
- Support infrastructure and toolset configuration tailored to individual test events
- Provide real-time troubleshooting and technical support during Cyber OT&E execution
- Support ongoing infrastructure status reporting to inform current and future operations planning and mission readiness
- Support development and maintenance of standard operating procedures (SOPs) governing use of computing resources
- Research and recommend innovative and automated approaches to system administration tasks
- Install new systems and rebuild existing servers, configuring hardware, peripherals, services, directories, storage, and settings in accordance with standards and operational requirements
- Upgrade and maintain administrative tools, utilities, and supporting software
Knowledge
- IT security principles and methods (firewalls, DMZs, encryption, VPN security)
- Enterprise IT architecture and system integration principles
- Network protocols and services (TCP/IP, DNS, DHCP, directory services)
- Identity and access management (e.g., PKI)
- Virtualization technologies and virtual machine lifecycle management
- System/server diagnostic tools and fault identification techniques
- Performance indicators for system availability, capacity, and reliability
- Routine maintenance requirements for enterprise IT equipment
- Operating system and server administration
- Monitoring and optimizing system/server performance
- Diagnosing and correcting physical and logical system issues
- Recovering failed systems and servers
- Installing system, software, and component upgrades
- Configuring and optimizing applications and services
- Diagnosing network connectivity issues
- Maintaining directory services and group policy objects
- Conducting system/server planning, management, and sustainment
- Using and managing virtual machines
- Identify and anticipate system performance, availability, capacity, and configuration risks
- Integrate system components to support operational requirements
- Design and enforce group policies and access controls aligned with organizational standards
- Apply system and operating system hardening techniques to maintain secure configurations