Information Systems Security Engineer (ISSE) - Mid

CGI Federal is seeking a Mid-Level Information Systems Security Engineer (ISSE) to support a large federal initiative. The Mid-Level ISSE is responsible for supporting the secure design, engineering, and integration of enterprise systems operating across hybrid cloud and on-premises environments. This role works closely with system architects, developers, ISSOs, and federal stakeholders to ensure systems are engineered in alignment with NIST security controls, RMF requirements, and agency-specific security standards.

The Mid-Level ISSE contributes to secure architecture analysis, control implementation, system hardening, compliance assessments, and configuration management activities throughout the system lifecycle.

Your future duties and responsibilities:

• Support development and engineering of secure system architectures, including cloud, hybrid, and on-prem deployments.

• Assist in designing, implementing, and validating security controls in accordance with NIST 800-53 and system-level requirements.

• Contribute to system security plans, design documents, interface definitions, and engineering baselines.

• Support threat modeling, system risk assessments, and engineering reviews.

• Participate in technical evaluations for new technologies, tools, or system enhancements to improve security posture.

• Assist in secure configuration reviews using STIGs, SCAP benchmarks, and system hardening guidance.

• Collaborate with development, infrastructure, and operations teams to ensure secure integration across the system lifecycle.

• Provide engineering support for RMF activities including control inheritance, boundary design, and system integration documentation.

• Support testing activities including security functional testing, validation of implemented controls, and review of test results.

• Coordinate with cross-functional teams to translate customer and mission requirements into secure engineering designs.

• Bachelor's degree in Cybersecurity, Information Systems, Computer Engineering, Software Engineering, or related technical field.

• Minimum of 3-5 years of experience in cybersecurity engineering, systems engineering, or secure IT integration.

• Active Top Secret (TS) clearance.

• Working knowledge of:

• Secure system architecture and design principles

• NIST RMF lifecycle and security engineering processes (NIST 800-37, 800-160)

• Implementing NIST 800-53 security controls

• System hardening and secure configuration management

• Familiarity with:

• Cloud platforms (AWS, Azure, GovCloud)

• Engineering tools such as Git, CI/CD pipelines, or DevSecOps processes

• Common programming/scripting languages (e.g., PowerShell, Python, Bash)

• Ability to analyze technical information, produce engineering documentation, and communicate effectively with cross-functional teams.

Preferred Certifications (Mid-Level Appropriate)

Preferred:

• Security+ CE

• CC (ISC2)

• CEH

• CompTIA CySANice to Have (Senior Path):

• CASP+ CE

• CISSP-Associate

• GSEC

• AWS/Azure security certifications

• DoD 8140/8570 IAT/IASAE certifications

Technical Familiarity

• STIG Viewer, SCAP Compliance Checker, and system hardening tools

• ACAS/Nessus or similar vulnerability assessment tools

• Secure network and system design fundamentals

• Cloud security concepts and shared-responsibility models

• Experience supporting secure engineering reviews, architecture diagrams, or solution design

• Understanding of API security, data flows, and system integration patterns

• Experience in version control and DevOps workflows (Git, Azure DevOps, or similar)

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you'll reach your full potential because… You are invited to be an owner from day 1 as we work together to bring our Dream to life. That's why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company's strategy and direction. Your work creates value. You'll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise. You'll shape your career by joining a company built to grow and last. You'll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons. Come join our team-one of the largest IT and business consulting services firms in the world.