Information System Security Engineer; ISSE - Senior in Washington
Listed on 2026-05-31
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IT/Tech
Cybersecurity
Overview
Job Description Job Description
Work Environment- Location:
Washington, DC or Huntsville, AL - Remote or In-Person: 100% onsite
- Type of environment:
Office - Noise level:
Medium - Work schedule:
Schedule is day shift Monday – Friday. - Amount of Travel:
Less than 10%
Target salary range: $140,000 - $180,000. The salary range displayed is an estimate and will be determined based on several factors, including the individual’s combination of education, knowledge, skills, competencies, and experience, as well as contract parameters and organizational requirements. The listed salary represents one component of the total compensation package for employees.
Work Authorization / Security ClearanceU.S.
Mandatory:
Must hold an active TOP SECRET clearance with the ability to obtain an SCI.
The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. While performing the duties of this job, the employee is regularly required to use hands to handle, feel, touch; reach with hands and arms;
talk and hear. The employee is regularly required to stand; walk; sit; climb or balance; and stoop, kneel, crouch, or crawl. The employee is regularly required to lift up to 10 pounds. The employee is frequently required to lift up to 25 pounds; and up to 50 pounds. The vision requirements include close vision, distance vision, peripheral vision, depth perception, and ability to adjust focus.
Information
Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.
ResponsibilitiesWe are seeking an Information System Security Engineer (ISSE) to join our team supporting a government customer.
- Lead, mentor, and supervise a team of security professionals responsible for the end-to-end implementation of the RMF lifecycle for IT systems.
- Oversee and coordinate activities within the Prepare step, ensuring roles, responsibilities, and risk management strategies are clearly defined and maintained.
- Guide system categorization efforts to ensure all information systems are appropriately classified based on mission/business impact and regulatory requirements.
- Direct the selection, tailoring, and documentation of security controls aligned with system categorizations, risk appetite, and compliance requirements.
- Oversee the implementation of technical, operational, and management controls throughout system and application life cycles, with a particular focus on quality and completeness of all deliverables.
- Ensure comprehensive security control assessments are planned, executed, and documented to validate the effectiveness of implemented safeguards.
- Prepare risk management documentation for system authorization and executive decision-making.
- Direct ongoing monitoring and continuous assessment activities, collecting metrics to adjust security strategies and ensure sustained compliance.
- Serve as a principal technical advisor on cybersecurity, bringing subject-matter expertise to risk analysis, incident response, system remediation, and audit support efforts.
- Foster a culture of security awareness, providing technical guidance and training to both team members and stakeholders.
- Track, report, and communicate status, risks, and improvement opportunities related to security engineering activities to leadership and stakeholders.
- Maintain up-to-date knowledge of RMF, NIST guidance, and industry best practices in support of continuous process improvement.
- Familiarity with the use and operation of security tools including Tenable Nessus and/or Security Center, IBM Guardium, HP Web Inspect, Network Mapper (NMAP), and/or similar applications.
- Experience with Joint Cybersecurity Authorization Management (JCAM) and/or Xacta.
- Minimum 8 years’ experience, or equivalent education / experience. For example:
Doctorate plus 6…
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