Information Systems Security Engineer (ISSE)

STAFFXPERT LLC is seeking an Information Systems Security Engineer (ISSE) on behalf of our client in Washington, DC. This role is ideal for a cybersecurity professional with expertise in cloud security, security architecture, DevSecOps, and federal compliance frameworks. The selected candidate will play a key role in securing enterprise and cloud environments, supporting system authorization activities, and integrating security throughout the system development lifecycle. Key Responsibilities

• Design and implement security controls for enterprise and cloud-based environments, including Microsoft Azure and AWS.
• Integrate security requirements throughout the System Development Life Cycle (SDLC), covering applications, operating systems, information systems, and CI/CD pipelines.
• Design, evaluate, and secure cloud and enterprise architectures.
• Configure and secure Azure networking components, including Virtual Networks (VNets), Network Security Groups (NSGs), Azure Firewall, Private Endpoints, routing tables, and access control mechanisms.
• Assess the effectiveness of implemented security controls and configurations.
• Support security authorization and accreditation activities through technical security engineering expertise.
• Conduct security impact assessments for system, application, architecture, and configuration changes.
• Perform threat modeling and risk analysis to identify and mitigate potential security vulnerabilities.
• Implement Supply Chain Risk Management (SCRM) practices aligned with industry standards.
• Apply application security best practices, including secure coding principles, dependency management, and vulnerability remediation.
• Support DevSecOps initiatives by integrating security controls, scanning, monitoring, and automation within CI/CD pipelines.
• Implement security best practices for containerized environments and Infrastructure as Code (IaC).
• Develop security architecture documentation, technical standards, and risk-based security recommendations., * Work on mission-critical cloud and enterprise security initiatives.
• Collaborate with experienced cybersecurity and engineering professionals.
• Gain exposure to modern cloud security, DevSecOps, and security architecture practices.
• Contribute to the design and protection of complex enterprise systems.

• Bachelor's degree in Cybersecurity, Information Technology, Engineering, Computer Science, or a related field.

• 6+ years of experience in cybersecurity or information security.

• 2+ years of experience in an Information Systems Security Engineering (ISSE) capacity.

• Strong knowledge of networking concepts, including TCP/IP, routing and switching, firewalls, VPNs, load balancing, and cloud networking.

• Hands-on experience with Azure networking and cloud security services.

• Experience implementing application security and DevSecOps practices in cloud environments.

• Strong understanding of security and compliance frameworks, including:

• NIST Risk Management Framework (RMF)

• FedRAMP

• NIST SP 800-161

• NIAP / Common Criteria

• Experience conducting security impact assessments and threat modeling.

• Excellent analytical, problem-solving, and communication skills., * Professional cybersecurity certifications such as CISSP, CCSP, Security+, Azure Security Engineer, AWS Security Specialty, or equivalent.

• Experience with Kubernetes, container security, and Infrastructure as Code technologies.

• Experience supporting highly regulated or enterprise-scale environments.

• Familiarity with cloud-native security monitoring, automation, and compliance tooling.

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