Information Systems Security Engineer (TS/SCI) Hybrid

Edgesource Corporation; Chantilly (VA); Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Flexible PTO

Remote / Hybrid options

Medical / Dental / Vision / FSA

401k with match

Tuition & Professional Development

Commuter benefits

Bonus & referrals

Career growth opportunities

Job summary

Edgesource Corporation is seeking an Information Systems Security Engineer to provide cybersecurity engineering and A&A support across Sponsor systems. The ISSE will ensure security requirements are integrated into architecture, design, development, testing, deployment, and operations, maintaining artifacts and enabling continuous monitoring throughout the lifecycle.

The role requires TS/SCI with Poly, experience in security engineering for complex systems, and the ability to translate security

Qualifications

• Active TS/SCI with Poly.
• Experience in information systems security engineering, security authorization, or information assurance for complex systems.
• Knowledge of security control implementation, risk assessment, vulnerability management, secure configuration, and continuous monitoring.
• Experience producing and maintaining cybersecurity documentation, control evidence, risk records, and authorization packages.
• Ability to translate security requirements into implementable engineering actions.
• Strong technical writing, organization, analysis, and stakeholder communication skills.
• Bachelor’s degree in cybersecurity, computer science, information systems, engineering, or related field, or equivalent experience.

Responsibilities

• Define, document, and maintain cybersecurity requirements for Sponsor systems and applications.
• Support A&A activities throughout the system lifecycle per policy and RMF.
• Develop and maintain system security plans, control implementation statements, architecture diagrams, risk assessments, and authorization artifacts.
• Partner with architects, engineers, developers, administrators, testers, and system owners to integrate security into design and implementation.
• Coordinate vulnerability scanning, secure configuration assessment, remediation tracking, and validation of corrective actions.
• Support continuous monitoring, audit prep, and ongoing authorization activities.
• Track security findings, risks, mitigations, exceptions, and POAs through closure.
• Review access controls, authentication, encryption, logging, and boundary protections for compliance.
• Provide cybersecurity guidance during incident response, deployments, and operational changes.
• Maintain security documentation, evidence repositories, and assessment records.

Skills

TS/SCI with Poly

ISSE experience

Security controls

Documentation

Engineering actions

Technical writing

Stakeholder comms

Education

Bachelors in cybersecurity or related field

Job description

Edgesource Corporation is seeking an Information Systems Security Engineer to provide cybersecurity engineering and A&A support across Sponsor systems. The ISSE will ensure security requirements are integrated into architecture, design, development, testing, deployment, and operations, maintaining artifacts and enabling continuous monitoring throughout the lifecycle.

The role requires TS/SCI with Poly, experience in security engineering for complex systems, and the ability to translate security