Information Systems Security Engineer; ISSE; Red Hat Enterprise Linux; RHEL

Overview

AMERICAN SYSTEMS, a 100% employee-owned federal contractor, is seeking a highly experienced Information Systems Security Engineer (ISSE
) to support Red Hate Enterprise Linux systems in a High Performance Computing (HPC
) environment in Arlington, VA
.

This role includes a $10,000 sign-on bonus in addition to a generous compensation package.

As an Information Systems Security Engineer (ISSE) at AMERICAN SYSTEMS, you will:

• Design and implement enterprise-level security architectures for RHEL systems in a High Performance Computing (HPC) SAP environment
• Utilize RHEL command-line and systems knowledge to apply JSIG requirements across the entire environment.
• Manually develop RMF/JSIG authorization artifacts
  , including SSPs, control narratives, POA&Ms, and supporting evidence
• Perform hands-on security assessments on Linux, Palo Alto, Cisco, PostgreSQL and ESXI systems including command-line audits, compliance scans, log review, and control validation
• Analyze scan results, identify security gaps, develop remediation plans and execute these plans in a production environment.
• Validate and implement host-based firewall and auditd 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 deficiencie
  s and provide actionable remediation recommendations
• Support system recovery and lead technical security oversight following outages or incidents
• Lead incident response investigation, mitigation, reporting and remediation.
• Collaborate with engineering teams to integrate security requirements into system design and production releases.

• Active Top Secret/SCI with SAP eligibility
• Bachelor’s degree in a STEM discipline with 11–12 years of relevant experience, or
  • Master’s degree with 8–10 years of relevant experience
• Minimum 5 years of experience designing and implementing enterprise-scale security solutions with hands-on security assessment experience,
  including command-line validation
  , across Linux systems.
• DoD 8140 IAT Level III–equivalent certification (e.g., SecurityX, CISSP, CCNP Security, CISA, GCED, GCIH, or CCSP)
• Working experience in Linux command-line (eg. RHEL, Ubuntu, Fedora, CentOS)
• Strong background in RMF, ICD 503, NIST SP 800-53, DCID 6/3, or current DoW authorization practices
• Working knowledge of the JSIG and its application to RMF authorization
• Experience supporting security tools such as Splunk Enterprise
  , ACAS,
  SELinux
  , Rsyslog, Shorewall, Firewalld
• Demonstrated security engineering experience across Linux, Cisco networking, databases (SQL or Oracle), and virtualized environments

AMERICAN SYSTEMS is committed to pay transparency for our applicants and employee-owners. The salary range for this position is USD $/Yr.

- USD $200,000/Yr. Actual compensation will be determined based on several factors permitted by law. AMERICAN SYSTEMS provides for the welfare of its employees and their dependents through a comprehensive benefits program by offering healthcare benefits, paid leave, retirement plans, insurance programs, and education and training assistance.

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