AMERICAN SYSTEMS

NISSC 3 Information Systems Security Engineer II (ISSE)

AMERICAN SYSTEMS$94K — $157K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 4-6 years of hands-on experience in systems security engineering or related fields, preferably in DoD environments.
  • Advanced understanding of systems security engineering principles and technical security controls implementation.
  • Experience conducting configuration, vulnerability, and risk assessments for high-assurance systems.
  • Proficient in configuring and validating security tools supporting RMF, NIST, and DoD compliance.
  • Familiarity with development and maintenance of RMF A&A packages and security documentation.
  • Demonstrated incident tracking and remediation experience in collaboration with cybersecurity teams.
  • Must possess at least one DoD 8140 certification and an active DoD Secret clearance.

Responsibilities

  • Operate and maintain automated information systems and secure network nodes.
  • Design and implement security controls aligned with RMF, NIST, and DoD standards.
  • Conduct assessments and risk evaluations for systems and applications.
  • Deploy and validate security solutions to safeguard against cyber threats.
  • Develop and maintain A&A packages and related security documentation.
  • Participate in incident investigation and risk mitigation efforts.
  • Lead technical discussions on security engineering best practices and system integration.

Benefits

  • Comprehensive healthcare benefits for employees and dependents.
  • Generous paid leave policy.
  • Retirement plans to secure your future.
  • Insurance programs for health and safety coverage.
  • Education and training assistance to foster professional development.
Full Job Description
Overview

As an Information Systems Security Engineer II (ISSE) on the NISSC 3 program, you will analyze, design, and implement technical security controls to protect mission-critical information systems and ensure continuous compliance with RMF, NIST, and DoD cybersecurity requirements.
You will perform configuration, vulnerability, and risk assessments; deploy and validate security tools; support Assessment & Authorization (A&A) activities; and provide technical leadership for cybersecurity integration across complex systems. You will work closely with systems engineering, configuration management, and the EDLM/UDLM (Emergency/Urgent Depot Level Maintenance) Manager to maintain cyber readiness and support incident response.

Responsibilities

  • Ensure automated information system (AIS) and network nodes are operated, maintained, and
  • Analyze, design, and implement technical security controls for complex information systems in accordance with RMF, NIST, and DoD requirements.
  • Perform configuration assessments, vulnerability assessments, and risk assessments for systems, applications, and supporting infrastructure.
  • Configure, deploy, and validate security tools and technologies to monitor, detect, and protect against cyber threats.
  • Support the development, documentation, and maintenance of assessment and authorization (A&A) packages, including system security plans (SSPs), plans of action and milestones (POA&Ms), and supporting artifacts.
  • Conduct security impact analyses for system changes and recommend appropriate security engineering solutions.
  • Participate in incident tracking and remediation activities; support root-cause analysis and corrective actions to prevent recurrence.
  • Provide technical leadership and guidance on systems security engineering best practices to project teams and stakeholders.
  • Oversee cybersecurity integration across systems, ensuring security controls are effectively implemented during design, development, test, deployment, and sustainment.
  • Support vulnerability management activities, including scanning, analysis, remediation planning, and status reporting.
  • Develop and submit security reports, threat analyses, and risk summaries to support program decision-making and senior leadership updates.
  • Collaborate closely with the EDLM/UDLM Manager to ensure that emergency and urgent depot-level maintenance actions comply with cybersecurity requirements and do not introduce unacceptable risk.
  • Contribute to continuous improvement of cybersecurity processes, procedures, and tooling in alignment with evolving DoD and NIST guidance.


Qualifications

  • 4-6 years of relevant, hands-on experience in systems security engineering, cybersecurity engineering, information assurance, or related discipline, ideally within a DoD or similarly regulated environment.
  • Advanced knowledge of systems security engineering principles and practices, with demonstrated experience designing and implementing technical security controls.
  • Hands-on experience conducting configuration assessments, vulnerability assessments, and risk assessments for DoD or similar high-assurance systems.
  • Proven ability to configure, manage, and validate security tools and technologies in support of RMF, NIST, and DoD compliance.
  • Experience supporting the development and maintenance of RMF A&A packages, including security documentation, control implementation statements, and evidence collection.
  • Demonstrated capabilities in incident tracking, triage, remediation support, and collaboration with incident response teams.
  • Proficiency in developing advanced security solutions and overseeing cybersecurity integration across complex systems and environments.
  • Experience with one or more of the following tools (or similar):
    • eMASS, XACTA, CORE
    • ACAS
    • SCAP tools
    • Nessus
    • Checkmarx
    • ZAP DAST
  • Ability to interpret and apply DoD, NIST, and RMF policy, standards, and guidance in an operational environment.
  • Strong written and verbal communication skills, including experience producing technical documentation, security reports, and risk/threat analyses.
  • Must hold at least one qualifying DoD 8140 certification (e.g., CCSP, Cloud+, CSC, GCLD, GSEC, SecurityX/CASP+).
  • Active DoD Secret clearance with eligibility to obtain TS/SCI.
  • Bachelor's degree in one of the following (or closely related) fields:
    • Information Technology (IT)
    • Cybersecurity
    • Computer Science (CS)
    • Information Systems (IS)
    • Data Science
    • Software Engineering
      OR Equivalent DoD/Military training in cybersecurity, information assurance, or systems security engineering.


Pay Transparency Statement

AMERICAN SYSTEMS is committed to pay transparency for our applicants and employee-owners. The salary range for this position is USD $94,400.00/Yr. - USD $157,600.00/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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