AMERICAN SYSTEMS

System Administrator

• support the reliability, security, and performance of Red Hat Enterprise Linux (RHEL) environments
• focus on day-to-day operations, patching, incident response, and system monitoring
• follow established change management processes
• respond to service requests and incidents
• configure servers for monitoring and contribute to small- to medium-scale projects
• administer and maintain Red Hat Enterprise Linux systems
• apply system patches and updates
• configure and maintain monitoring of servers
• respond to incidents and service requests
• participate in project-based work
• collaborate with team members to document procedures
• monitor system performance and availability
• follow security and compliance requirements
• participate in on-call after hours IT infrastructure support rotation
• track and manage work using approved ITSM tools

Linux Systems Administrator II

• support the reliability, security, and performance of Red Hat Enterprise Linux (RHEL) environments
• administer and maintain Red Hat Enterprise Linux systems
• apply system patches and updates using Red Hat Satellite
• configure and maintain monitoring of servers using SolarWinds Orion
• respond to incidents and service requests
• participate in project-based work, including deployments and upgrades
• track and manage work using approved ITSM tools

• Provide system administration with a focus on Windows 10/11, Windows Server 2016/2019 and Red Hat Linux 7
• Plan, coordinate, and execute the installation, testing, operation, and maintenance of hardware and software systems within a SCADA/EMS real-time power operations system
• Ensure compliance with configuration management processes as required by the customer and industry standards
• Perform standard system administration duties, including account management, computer/server management, printer and resource shares
• Support and maintain hardware components such as Dell-EMC VxRail, Dell-EMC Data Domain, and HPE Proliant Gen 10 Servers

SCADA Systems Administrator I

Technical Writer

• create, prepare, edit, maintain high-quality technical documentation
• distribute internal and external customer-facing communications and user guides
• create various communication products
• work closely with the security team, IT, engineering, and other cross-functional teams
• organize and manage security documentation sets
• provide documentation support for security audits and compliance initiatives
• gather and incorporate feedback from users, stakeholders, and auditors
• implement improvements to documentation processes

Technical Writer II

Customer Support

• Answer incoming calls and retrieve voicemails, ensuring that calls are answered on the same day
• Transfer customers to appropriate secondary call centers as needed
• Respond to all incoming facsimiles
• Review and respond to incoming e-mails regarding patents, trademarks, publications, data quality, and products and services that have been sent to the general mailbox
• Use knowledge base of pre-approved responses to answer inquiries or requests consistently and accurately
• Send appropriate general information publications
• Use the Customer Contact Management System to track and enter detailed information of all inquiries/requests received including steps taken to resolve any problems encountered

Customer Service Representative

• Provide Tier II Linux systems administration support for HPC users with professional, responsive customer service
• Support day-to-day operations and maintenance of HPC compute, storage, and networking environments
• Assist senior system administrators in optimizing hardware and software performance
• Ensure availability, integrity, and reliability of servers, workstations, and data storage systems, including Lustre and Bright
• Administer and manage Linux user accounts, groups, and permissions
• Triage Tier I/II service desk tickets and produce basic service metrics and reports
• Support installation, configuration, and testing of HPC system components, including compute servers, storage systems, networking equipment, and peripherals
• Assist with Linux server configuration, backup operations, and security-related tasks
• Perform hardware replacements not covered by vendor maintenance agreements
• Assist network personnel with equipment configuration, firewall support, and network security activities
• Implement program security requirements and comply with RMF controls
• Adhere to all IT policies, processes, and procedures
• Manage changing priorities in a fast-paced, mission-driven environment

Tier II Linux Systems Administrator – HPC, Top Secret Clearance

Security Engineer

• Design and implement enterprise-level security architectures for SAP systems
• Apply JSIG requirements to system authorization, control implementation, and documentation
• Manually develop RMF/JSIG authorization artifacts, including SSPs, control narratives, POA&Ms, and supporting evidence
• Perform hands-on security assessments on Linux and Windows systems, including command-line audits, compliance scans, log review, and control validation
• Analyze scan results, identify security gaps, and support remediation planning and execution
• Validate and implement host-based firewall and security configurations in coordination with system administrators
• Manage and track POA&Ms through mitigation, remediation, or risk acceptance
• Ensure system compliance through continuous monitoring of controls, procedures, and documentation
• Identify security deficiencies and provide actionable remediation recommendations
• Support system recovery and security oversight following outages or incidents
• Participate in change management activities, assessing security impacts to SAP systems
• Support security investigations, incident response, and remediation activities
• Collaborate with engineering teams to integrate security requirements into system design and production releases

Information Systems Security Engineer – Top Secret Clearance, SCI Eligibility

• Administer and support Red Hat Linux systems in a classified, closed enclave
• Provide Tier II operational support for production and development environments
• Monitor system performance, storage capacity, and availability
• Review logs, validate backups, and support recovery operations
• Develop and maintain scripts using BASH and Python
• Manage users, groups, permissions, and local repositories per RMF requirements
• Support secure data transfers and automation workflows
• Author and maintain SOPs, SCTMs, and RMF documentation
• Collaborate with cybersecurity teams to maintain compliance
• Coordinate with geographically separated partner sites
• Recommend system, process, and architecture improvements
• Mentor junior administrators and support team development

Linux Systems Administrator II

Linux Systems Administrator II

SCADA Systems Administrator I

Technical Writer II

Customer Service Representative

Tier II Linux Systems Administrator – HPC, Top Secret Clearance

Information Systems Security Engineer – Top Secret Clearance, SCI Eligibility

Senior Linux Systems Administrator