OverviewAMERICAN SYSTEMS, a 100% employee-owned federal contractor, is seeking a highly experienced Information Systems Security Engineer (ISSE) to support RHEL and Windows 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.
Responsibilities
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
- 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
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 across Linux systems, including command-line validation
- DoD 8140 IAT Level III–equivalent certification (e.g., SecurityX, CISSP, CCNP Security, CISA, GCED, GCIH, or CCSP)
- Strong background in RMF, ICD 503, NIST SP 800-53, DCID 6/3, or current DoD authorization practices
- Working knowledge of the JSIG and its application to RMF authorization
- Proven experience authoring RMF/JSIG artifacts by hand, without reliance on automated RMF tools (eMASS, Xacta, etc.)
- Experience supporting security tools such as Splunk Enterprise, HBSS, McAfee ePO, ENS, and DLP
- Demonstrated security engineering experience across Linux, Windows, Cisco platforms, 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.
