Cyber Information Systems Security Engineer (ISSE)

About NDi:

Network Designs, Inc. (NDi) is a leading Federal contractor that specializes in designing, developing, and delivering information technology and network solutions for government customers. Founded in 1985, NDi's firmly defined core values have driven all aspects of the business, which have been paramount to our company's success and the establishment of an enjoyable workplace atmosphere. At NDi, we believe that our people are the cornerstone of our success, and we value collaboration, career growth, and winning ideas. Military Veterans Encouraged to Apply.

Job Description:

NDi is seeking an experienced Information Systems Security Engineer (ISSE) - Senior to support enterprise cybersecurity engineering, authorization, compliance, and security operations activities within a complex federal environment supporting Cybersecurity Division (CyD) mission requirements.

The ISSE will support the secure design, implementation, assessment, and continuous monitoring of information systems and security controls across enterprise environments. This role will work closely with system owners, ISSOs, cybersecurity teams, engineers, and government stakeholders to ensure systems maintain compliance with federal cybersecurity requirements and security best practices.

The ideal candidate will possess strong technical expertise in security engineering, RMF implementation, vulnerability remediation, audit readiness, and secure system design within large-scale operational environments.

Requirements:

• U.S. Citizenship is required
• Must possess an active Top Secret (TS) clearance at the time of application
• Must have the ability to obtain and maintain a Counterintelligence (CI) Polygraph
• Ability to obtain and maintainadditional agency access as required
• This position requires onsite support in Chantilly, VA

Qualifications and Experience:

• Bachelor's degree in Cybersecurity, Information Systems, Computer Science, Engineering, or related technical discipline; or equivalent combination of education, training, and experience
• Master's degree preferred
• Eight (8) or more years of experience: supporting information assurance, cybersecurity engineering, or enterprise security operations, in secure design/analysis/testing, applying security methods/standards, creating/updating security test plans. Certifications, prior experience, and demonstrated expertise may be considered in lieu of traditional years of experience requirements where applicable.
• Experience supporting federal cybersecurity and information assurance programs
• Demonstrated experience implementing and supporting NIST RMF processes and security authorization activities
• Experience supporting system hardening, vulnerability remediation, and continuous monitoring activities
• Experience developing and maintaining cybersecurity documentation and security artifacts
• Experience supporting enterprise-scale Windows, Linux, cloud, and hybrid environments
• Experience supporting security engineering activities within mission-critical environments

Certifications:

• Certified Information Systems Security Professional (CISSP) or Certified Ethical Hacker (CEH)

Preferred Qualifications:

• Experience supporting Cybersecurity Division (CyD) operations or enterprise federal cybersecurity programs
• Experience supporting cloud security initiatives within AWS and Azure environments
• Familiarity with Zero Trust architecture principles
• Experience supporting classified or highly regulated environments
• Experience with enterprise vulnerability management programs
• Familiarity with DevSecOps and modern cybersecurity engineering practices

Domain Expertise:

• Strong understanding of:
• NIST Risk Management Framework (RMF)
• FISMA compliance requirements
• Security authorization / ATO processes
• Continuous monitoring
• Vulnerability management
• Security control implementation and assessment
• POA&M development and remediation tracking
• Experience supporting:
• System Security Plans (SSPs)
• Security assessment activities
• Audit readiness initiatives
• Security test plans and procedures
• Risk assessments and mitigation planning
• Familiarity with enterprise cybersecurity tools and technologies including:
• ACAS/Nessus
• Splunk
• SIEM platforms
• Endpoint security tools
• Cloud security platforms
• Identity and access management solutions

Skills & Competencies:

• Strong analytical and troubleshooting skills
• Ability to identify, assess, and mitigate cybersecurity risks
• Strong written and verbal communication skills
• Ability to collaborate across technical and operational teams
• Experience supporting audits, inspections, and compliance reviews
• Ability to manage multiple priorities in high-visibility environments
• Strong documentation and reporting capabilities
• Ability to work independently and as part of an integrated cybersecurity team

Responsibilities:

Security Engineering & RMF Support

• Support implementation and maintenance of security controls across enterprise information systems
• Assist with security authorization and accreditation activities in accordance with RMF requirements
• Develop, review, and maintain cybersecurity documentation including:
• System Security Plans (SSPs)
• Security Control Traceability Matrices (SCTMs)
• POA&Ms
• Security assessment documentation
• Risk assessments
• Support system boundary analysis and security architecture reviews

Vulnerability & Compliance Management:

• Perform vulnerability analysis, remediation coordination, and risk tracking activities
• Support continuous monitoring efforts and security compliance initiatives
• Validate remediation actions and document mitigation strategies
• Coordinate with technical teams to resolve cybersecurity findings and deficiencies
• Support internal and external audits, assessments, and inspections

Security Operations Support:

• Collaborate with ISSOs, system administrators, engineers, and security teams to maintain secure system operations
• Support implementation of security baselines, hardening standards, and secure configurations
• Assist with incident response support and security investigations as required
• Evaluate security impacts of system changes and new technologies

Reporting & Stakeholder Engagement:

• Provide technical recommendations and cybersecurity guidance to leadership and stakeholders
• Develop status reports, risk summaries, and compliance metrics
• Participate in technical meetings, working groups, and operational reviews
• Support continuous process improvement and cybersecurity modernization initiatives

Compensation and Benefits:

At NDi, we value our team and are committed to retaining top talent by offering competitive benefits and compensation packages. Our employee benefits package includes comprehensive health, dental, vision, pet, and legal insurance. Our corporate benefits include 401(k) retirement matching, paid leave, paid holidays, and health and wellness programs. In addition, we provide employer-paid life and disability insurance, professional development, education benefits, and much more to ensure our team has the resources they need to thrive on and off the job.

Veterans First** Commitment:**

As a Service-Disabled Veteran-Owned Small Business (SDVOSB), NDi is dedicated to hiring veterans and providing a supportive work environment that honors their service while recognizing the unique skills and experiences they bring to our organization.

Our Commitment:

Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status or other characteristics protected by law.

Apply Now: Take advantage of this unique opportunity to join one of the fastest-growing companies in Federal contracting!