GCA ยท 1 day ago
System Administrator
Norfolk, VA 23462
Full-time
Onsite
Senior Level
5+ years expGCA is a minority veteran owned small business providing solutions in the intelligence and information technology industries. They are seeking a System Administrator to install, configure, troubleshoot, and maintain hardware and software systems, ensuring the security and reliability of Cyber OT&E infrastructure while providing real-time support during test execution.
Information Technology & Services
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
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
Qualification
Required
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
Eligibility for Top Secret / Sensitive Compartmented Information (TS/SCI)
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
Company
GCA
GCA is a veteran owned small business providing solutions to customer requirements in every realm of the intelligence and information technology industries to include, imagery/intelligence analysis, related systems engineering and administration, operations and maintenance, networking and VTC services.
11-50 employees
Funding
Current Stage
Early StageLeadership Team
Anthony Tannoya
Chief Executive Officer
Michael Dorr
Vice President & COO
Company data provided by crunchbase