AMERICAN SYSTEMS

Information Systems Security Engineer – Top Secret Clearance, SCI Eligibility

AMERICAN SYSTEMS

full-time

Posted on:

Location Type: Office

Location: Dallas • Texas • 🇺🇸 United States

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Salary

💰 $129,800 - $216,700 per year

Job Level

SeniorLead

Tech Stack

LinuxOracleSplunkSQL

About the role

  • 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

Requirements

  • Active Top Secret clearance with SCI eligibility
  • Willingness to submit for a CI Polygraph
  • Bachelor’s degree in a STEM discipline with 10–11 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
  • DoD 8140 IAT Level III –equivalent certification (e.g., SecurityX, CISSP, CCNP Security, CISA, GCED, GCIH, or CCSP)
  • Demonstrated experience supporting Special Access Programs (SAP)
  • Working knowledge of JSIG and its application to RMF authorization
  • Proven experience authoring RMF/JSIG artifacts by hand, without reliance on automated RMF tools (eMASS, Xacta, etc.)
  • Hands-on security assessment experience across Linux systems, including command-line validation when required
  • 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
Benefits
  • healthcare benefits
  • paid leave
  • retirement plans
  • insurance programs
  • education and training assistance

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
security architecture designsystem authorizationcontrol implementationRMF authorizationsecurity assessmentscompliance scanslog reviewfirewall configurationsecurity remediationincident response
Soft skills
collaborationcommunicationproblem-solvinganalytical thinkingattention to detailorganizational skillsleadershipadaptabilitycritical thinkingchange management
Certifications
Top Secret clearanceSCI eligibilityDoD 8140 IAT Level IIISecurityXCISSPCCNP SecurityCISAGCEDGCIHCCSP