Systems Administrator

Radiance Technologies is an employee-owned company with benefits that are unmatched by most companies in the Huntsville AL area, including employee ownership, a generous 401K, full health/dental/life/vision insurance, interesting assignments, educational reimbursement, competitive salaries, and a pleasant work environment.

About the Role

The Systems Administrator will provide design, maintenance, sustainment, and enhancement support for critical computer systems and network infrastructure in a classified environment. Responsibilities include ensuring compliance with applicable information assurance requirements, maintaining 24/7 continuity of operations, and creating and updating relevant system documents. While work hours are primarily normal business hours, occasional support during non-business hours may be required.

Behavioral Competencies

• Great attitude with a high degree of customer focus
• Flexible and adaptable to changing priorities
• Strong troubleshooting and problem-solving skills
• Reliable and committed to getting the job done, including after hours as required
• Excellent coping skills and ability to juggle multiple priorities
• Self-managed; able to work independently or with a team as required

Responsibilities

• Provide daily, on-site support for operations and maintenance across multiple classification-level environments
• Install, configure, and maintain Linux (Ubuntu, Red Hat Linux, CentOS) servers, desktops, and network devices in compliance with NIST 800-53A r4, DISA STIG, and SRG requirements
• Install, configure, and maintain Windows servers, desktops, and network devices in compliance with NIST 800-53A r4, DISA STIG, and SRG requirements
• Perform system design, hardware/software implementation and integration, and general infrastructure support within a software development environment using commercial, GOTS, and custom tooling
• Demonstrate experience with information systems deployments in an air-gapped environment
• Manage user accounts and access control (Active Directory, LDAP, User Access Control) in domain or stand-alone environments
• Integrate Linux workstations and servers with Windows Active Directory
• Configure and execute vulnerability scanning tools (Nessus), SCAP/STIG scans (SCC Tool, OpenSCAP, etc.), and remediate findings
• Provide backup and recovery services; manage file systems and disk space
• Work with log aggregation technologies for collecting and filtering Linux syslog and audit trails
• Support desktop and server virtualization within VMWare vSphere and EXSI
• Gain comprehension of new technologies to assist with new requirement implementation efforts

Requirements

• A minimum of two (2) years of experience as a System Administrator
• At least one year of experience as a System Administrator performing patching and configuring systems to be compliant with all applicable STIGs on a classified network
• Excellent written and verbal communication skills, with the ability to effectively interface with numerous cognizant security agencies, customers, and senior management
• Ability to manage multiple networks in a dynamic, demanding environment
• Basic knowledge of Risk Management Framework requirements and their impact on IT configuration requirements for Windows and Linux systems

Skills

• Minimum Secret clearance with the ability to obtain a Top Secret clearance
• DoD Directive 8570 / 8140 Information Assurance Technical (IAT) Level II certification (e.g., Security+ CE, CCNA Security, CySA+, GICSP, GSEC, CND, SSCP)

Qualifications

• Bachelor’s Degree in information technology or a related subject
• Previous experience working in a classified Collateral environment / SAP / SCI
• Prior experience as a System Administrator at an organization of similar size and complexity
• Understanding of network concepts and Type 1 encryption devices, such as TACLANE
• Understanding of networking concepts and cybersecurity-related tools, including DISA Security Technical Implementation Guides (STIG) and Security Content Automation Protocol (SCAP), and vulnerability scanners
• Knowledge of and ability to securely configure network equipment (switches and firewalls)
• Knowledge and experience with various network administration, monitoring, and security tools (Wireshark, Nessus, Snort, Netcat, and PRTG)
• Experience with SIEM tools, VMWare, NetApp, and endpoint security tools
• Familiarity with NISPOM/RMF, DAAPM, JSIG, and NIST/DFARS compliance security controls and their implementation on various OS computer systems

Benefits

• Employee ownership
• Generous 401K
• Full health, dental, life, and vision insurance
• Educational reimbursement
• Competitive salaries