Senior ISSE – RMF/NIST, TS/SCI (Day1)

Nightwing Technologies, LLC; Sterling (VA); On-site; USD 99,000 - 206,000; Full time

Benefits offered by this job

Medical insurance

Vision insurance

Dental insurance

401(k)

Paid time off

Job summary

Nightwing Technologies, LLC, in the United States (Dulles, VA area) is seeking an Information Systems Security Engineer (ISSE) to support a federal customer and a team delivering secure government systems and mission-critical capabilities. The role requires 8+ years of federal cybersecurity experience, a Bachelor's degree, and hands-on expertise with RMF/NIST controls, A&A artifacts, and vulnerability scanners such as Nessus.

Nightwing offers a competitive salary and comprehensive benefits.

Qualifications

• Bachelor's Degree in a related discipline.
• 8+ years of experience in federal cybersecurity programs or government IT environments.
• Strong knowledge of NIST SP 800-3, NIST SP 800-37 (RMF), and federal security compliance processes.
• Familiarity with secure system design, encryption, identity management, and access control.
• Ability to produce high-quality technical documentation for audits and accreditation.
• Experience executing vulnerability scans (Nessus, AppDetective, WebInspect).
• Experience with Sponsor's A&A Tool.
• Experience with AWS cloud security compliance.
• TS/SCI with Polygraph required Day 1.

Responsibilities

• Prepare A&A documents and procedures.
• Collaborate with program ISSE and government security representatives.
• Support the IA program per USG requirements (DCIDs, ICD 503, NIST).
• Design, develop, implement, and sustain secure government information systems.
• Work with owners and security teams to protect mission-critical systems.
• Engineer and maintain security controls per RMF and NIST SP 800-53.
• Develop and maintain SSPs, POA&Ms, security diagrams, and continuous monitoring artifacts.
• Evaluate emerging technologies to strengthen security posture.
• Monitor security systems, analyze logs, and respond to incidents.

Skills

RMF Knowledge

NIST SP 800-37

Information Assurance

Documentation for Audits

Vulnerability Scanning

Education

Bachelor's Degree

Tools

Nessus

AppDetective

WebInspect

A&A Tool

Job description

Nightwing Technologies, LLC, in the United States (Dulles, VA area) is seeking an Information Systems Security Engineer (ISSE) to support a federal customer and a team delivering secure government systems and mission-critical capabilities. The role requires 8+ years of federal cybersecurity experience, a Bachelor's degree, and hands-on expertise with RMF/NIST controls, A&A artifacts, and vulnerability scanners such as Nessus.

Nightwing offers a competitive salary and comprehensive benefits.