Information Systems Security Engineer / Project Manager (ISSE/PM

NDi is seeking a Senior Information Systems Security Engineer / Project Manager (ISSE/PM) to support enterprise cybersecurity engineering, authorization, compliance, and operational coordination activities within a complex federal IT environment.

This hybrid technical leadership role combines hands-on cybersecurity engineering expertise with project and operational management responsibilities supporting mission-critical information systems and cybersecurity initiatives. The selected candidate will provide leadership across security engineering, RMF activities, vulnerability management, system authorization support, resource coordination, and stakeholder engagement while ensuring consistent delivery of secure and compliant IT services.

The ideal candidate possesses deep technical cybersecurity knowledge, strong organizational and leadership capabilities, and experience managing priorities across multiple teams and operational requirements., Security Engineering & RMF Support

Support implementation and maintenance of security controls across enterprise systems

Assist with RMF authorization and accreditation activities

Develop and maintain cybersecurity documentation including:

System Security Plans (SSPs)

POA&Ms

Risk assessments

Security assessment documentation

Mitigation strategies

Support security architecture reviews and technical assessments

Project & Resource Management

Coordinate cybersecurity engineering and operational activities across multiple teams and stakeholders

Track project schedules, deliverables, milestones, and operational priorities

Support resource planning, workload coordination, and task management

Assist leadership with operational reporting, risk tracking, and issue escalation

Ensure technical activities align with contractual, operational, and security requirements

Vulnerability & Compliance Management

Perform vulnerability analysis and remediation coordination activities

Support continuous monitoring and compliance reporting efforts

Coordinate corrective actions and mitigation activities with technical teams

Support audit readiness and assessment activities

Operational Coordination & Stakeholder Support

Collaborate with ISSOs, engineers, administrators, and leadership teams to support secure system operations

Participate in technical meetings, working groups, and operational reviews

Provide cybersecurity recommendations and implementation guidance

Support continuous improvement and cybersecurity modernization initiatives

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 maintain additional agency access as required, Bachelor's degree in Cybersecurity, Information Systems, Engineering, Computer Science, Business, or related technical discipline; or equivalent combination of education, training, and experience

Master's degree preferred

Certifications

Required: CISSP or CEH Preferred: Cloud certification such as:

AWS Certified Security - Specialty, Eight (8) or more years of experience supporting cybersecurity engineering, information assurance, or enterprise security operations

Demonstrated experience supporting federal cybersecurity programs and mission-critical environments

Experience implementing and supporting NIST RMF processes and system authorization activities

Experience leading technical teams or coordinating cybersecurity project activities

Experience supporting vulnerability management, remediation tracking, and continuous monitoring initiatives

Experience managing schedules, priorities, deliverables, and stakeholder coordination across multiple efforts

Experience supporting enterprise Windows, Linux, cloud, and hybrid infrastructure environments

Certifications, prior experience, and demonstrated expertise may be considered in lieu of traditional years of experience requirements where applicable.

Domain Expertise

Strong understanding of:

NIST Risk Management Framework (RMF)

FISMA compliance requirements

Security authorization / ATO processes

Continuous monitoring

Vulnerability management

POA&M management

Security control implementation and assessment

Experience supporting:

System Security Plans (SSPs)

Security assessment activities

Audit readiness initiatives

Risk mitigation planning

Change management and configuration review processes

Familiarity with cybersecurity tools and technologies including:

ACAS/Nessus

Splunk

SIEM platforms

Endpoint security solutions

Identity and access management tools

Cloud security technologies

Skills & Competencies

Strong leadership, coordination, and organizational skills

Ability to manage multiple technical initiatives simultaneously

Strong analytical and problem-solving capabilities

Ability to communicate effectively with technical and non-technical stakeholders

Experience preparing executive summaries, technical reports, and status updates

Strong risk management and prioritization skills

Ability to work independently and within integrated operational teams

High degree of professionalism, accountability, and attention to detail, Experience supporting federal cybersecurity or enterprise security operations programs

Experience supporting classified or highly regulated environments

Familiarity with cloud security and hybrid infrastructure environments

Experience supporting enterprise vulnerability management programs

Familiarity with DevSecOps and modern cybersecurity engineering practices

Prior experience supporting Huntsville-based federal programs preferred