AMERICAN SYSTEMS

Information Systems Security Engineer (ISSE) - Red Hat Enterprise Linux (RHEL)

AMERICAN SYSTEMS$165K — $200K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Active Top Secret/SCI security clearance with SAP eligibility
  • Bachelor's degree in a STEM discipline plus 11-12 years of relevant experience, or Master's degree with 8-10 years
  • 5+ years designing and implementing security solutions with hands-on assessment experience
  • DoD 8140 IAT Level III-equivalent certification (e.g., CISSP or Security+
  • Working experience with Linux command-line environments (e.g., RHEL, CentOS)
  • Strong knowledge of RMF, JSIG, and relevant NIST guidelines
  • Familiarity with security tools like Splunk and SELinux

Responsibilities

  • Design and implement security architectures for RHEL systems in HPC SAP environments
  • Apply JSIG requirements utilizing RHEL command-line knowledge
  • Develop RMF/JSIG authorization documents including SSPs and control narratives
  • Conduct security assessments on various systems, focusing on compliance and log review
  • Analyze security scan results and formulate remediation plans
  • Validate host-based firewall configurations with system administrators
  • Lead incident response efforts and oversee technical security operations

Benefits

  • $10,000 sign-on bonus
  • Comprehensive healthcare benefits
  • Paid leave
  • Retirement plans
  • Insurance programs
  • Education and training assistance
Full Job Description
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.

ResponsibilitiesAs 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 deficiencies 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.
Qualifications
  • 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
Pay Transparency StatementAMERICAN SYSTEMS is committed to pay transparency for our applicants and employee-owners. The salary range for this position is USD $165,000.00/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.

About AMERICAN SYSTEMS

AMERICAN SYSTEMS is a government IT solutions provider. The Company provides solutions in national security, healthcare, and public sector markets. Its services include acquisition and lifecycle support, enterprise IT, healthcare IT, intelligence analysis, and training and simulation. The Company's customers include the Department of Defense, Department of State, Department of Justice, and Department of Homeland Security. AMERICAN SYSTEMS was founded in 1975 and is headquartered in Chantilly, Virginia.
Learn more about AMERICAN SYSTEMS
Size
1,500 employees
Industry
Founded
1975

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