Sr Cloud Security Engineer

GD Information Technology, Inc. is hiring a Senior Cloud Security Engineer to design, implement, operate, and continuously improve security infrastructure across on-premises data centers and AWS environments. The role spans cloud and network security architecture, automation, security operations, and incident response for business and scientific workloads.

Responsibilities:

• Design and implement security controls for AWS multi-account and hybrid-cloud environments
• Deploy and manage AWS security capabilities, including Network Firewall, WAF, Shield, Security Groups/NACLs, GuardDuty, Security Hub, CloudTrail, Config, IAM/Identity Center, KMS, VPC, and Transit Gateway controls
• Design secure connectivity, segmentation, and security boundaries between AWS and on-premises environments
• Develop secure, resilient architectures spanning AWS and on-premises infrastructure using defense-in-depth and Zero Trust principles
• Modernize environment to leverage Infrastructure as Code using technologies such as Terraform
• Automate security operations, compliance reporting, configuration management, and policy enforcement using APIs, scripting, DevSecOps tooling, and AI-assisted engineering tools
• Support security controls and evidence mapping aligned with frameworks such as NIST 800-53/800-171, FedRAMP, and FISMA
• Evaluate existing security architectures and identify improvements in security, resiliency, scalability, performance, and operational efficiency
• Troubleshoot complex cloud, network, firewall, and application-connectivity issues
• Support security incidents, production outages, and root-cause analysis
• Develop monitoring, logging, alerting, dashboards, runbooks, and engineering standards
• Perform performance tuning, capacity planning, and security infrastructure lifecycle management
• Participate in on-call or escalation support as required

Requirements:

• Amazon Web Services (AWS) Security, AWS Network Firewall, AWS Web Application Firewall (WAF), Network Security, Security Engineering
• 5 + years of related experience
• Bachelor's degree in Computer Science, Cybersecurity, Information Technology, Engineering, or a related field, or equivalent professional experience
• 5+ years of hands-on cloud security engineering experience
• Demonstrated experience designing, deploying, managing, and troubleshooting AWS security services
• Experience securing hybrid on-premises/AWS environments
• Experience with Infrastructure as Code, scripting and security automation
• Strong understanding of networking and security fundamentals, including TCP/IP, DNS, HTTP/HTTPS, network segmentation, VPNs, TLS/PKI, encryption, IAM, Zero Trust, and threat detection/prevention
• Experience troubleshooting complex security and network issues
• Must be able to obtain and maintain a Public Trust
• Experience with Palo Alto Panorama, Prisma Cloud, and/or related Palo Alto technologies
• Experience implementing centralized AWS security architectures in multi-account environments
• Experience with Terraform, Ansible, Python, Bash, APIs, or other infrastructure/security automation technologies
• Experience integrating security controls with SIEM/SOAR platforms
• Experience with CI/CD pipelines and DevSecOps security practices
• Experience with container/Kubernetes security and vulnerability management
• Experience implementing security and compliance controls aligned with NIST, FISMA, FedRAMP, or similar frameworks
• Experience using LLMs, AI agents, or generative AI tools to automate engineering, security, or compliance workflows
• Palo Alto Networks (e.g., PCNSE) and/or AWS security/architecture certifications, or equivalent practical experience
• Ability to independently own and resolve complex technical problems