Cloud Information Systems Security Engineer (ISSE)...

CGI Federal is seeking a Senior Cloud Information Systems Security Engineer (ISSE) to provide advanced cloud security engineering expertise for a major federal initiative. The Senior Cloud ISSE leads secure cloud architecture activities, ensures NIST-aligned control implementation, and supports secure integration of enterprise systems across AWS, Azure, and hybrid environments. This role advises system owners, architects, and engineering teams on secure cloud design, RMF engineering requirements, and the protection of high-value federal workloads.

Your future duties and responsibilities:

• Lead design and engineering of secure cloud architectures across AWS, Azure, and hybrid environments.

• Implement and validate NIST 800-53 security controls and cloud-native security services (IAM, encryption, segmentation, logging).

• Conduct cloud threat modeling, risk assessments, and architecture reviews.

• Oversee cloud configuration baselines using STIGs, CIS Benchmarks, and SCAP.

• Drive cloud vulnerability and compliance efforts using ACAS/Nessus and cloud-security posture tools.

• Support RMF engineering activities including boundary definition, inheritance documentation, and authorization packages.

• Integrate cloud-security capabilities such as Sentinel, Splunk, and SIEM logging pipelines.

• Guide DevSecOps teams on secure CI/CD, container security, and infrastructure-as-code validation.

• Produce cloud architecture diagrams, design documentation, and engineering artifacts.

• Mentor junior and mid-level ISSEs and act as a technical escalation point for cloud engineering issues.

• Bachelor's degree in Cybersecurity, Information Systems, Computer Engineering, or related technical field (Master's preferred).

• Minimum of 7+ years of cybersecurity or secure systems engineering experience, including cloud architecture.

• Active Top Secret or TS/SCI clearance.

• Advanced experience with:

• Secure cloud architecture (AWS, Azure, hybrid)

• NIST RMF engineering and NIST 800-160 principles

• Implementing NIST 800-53 controls in cloud environments

• Cloud configuration baselines (STIGs, CIS, SCAP)

• Strong ability to lead cloud engineering efforts across large federal programs.

• Excellent communication and engineering documentation skills.

Preferred Certifications (Senior Cloud ISSE Level)

Strongly Preferred:

• CISSP

• CCSP

• CASP+ CE

Cloud Certifications:

• AWS Solutions Architect (Associate/Professional)

• AWS Security Specialty, * CISSP-ISSAP or ISSEP

• DoD 8140/8570 IASAE-II/III certifications

Technical Familiarity

• AWS and Azure security services (IAM, logging, encryption, segmentation, key management).

• ACAS/Nessus, Tenable, and cloud-security posture tools.

• SIEM platforms (Sentinel, Splunk) and cloud log pipelines.

• DevSecOps pipelines, CI/CD security integration, Git/Azure DevOps.

• SAST/DAST tools, API security, and secure system integration patterns.

• Ability to review and influence complex cloud architecture and system design decisions.

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.