> Markdown version of [/jobs/ext/4009939-sr-cloud-security-engineer](https://www.wearedevelopers.com/jobs/ext/4009939-sr-cloud-security-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr Cloud Security Engineer - **Company:** General Dynamics Information Technology - **Location:** Fairfax, VA, United States - **Experience:** Expert - **Salary:** $124,093.0 - $149,500.0 - **Contract:** Permanent contract - **Skills:** Kubernetes Security, Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Application Firewall, Bash Shell, Cloud Computing, Cloud Computing Security, Configuration Management, Cyber Security, Data Centers, Domain Name System (DNS), Hypertext Transfer Protocols (HTTP), Identity and Access Management, Intrusion Detection and Prevention, Virtual Private Networks (VPN), Information Systems Security Architecture Professional, Python (Programming Language), Network Security, Network Troubleshooting, Network Segmentation, Performance Tuning, Public Key Infrastructure, Software Tools, Ansible, Zero Trust Network Access, Security Information and Event Management, Systems Integration, TCP/IP, Software Vulnerability Management, Workflow Management Systems, Data Logging, Scripting, Transport Layer Security, Large Language Models, HybridCloud, Firewalls (Computer Science), Infrastructure as Code (IaC), Amazon Virtual Private Cloud (VPC), Agentic-AI, Infrastructure Automation Frameworks, Information Technology, Palo Alto Networks, Hardware Infrastructure, Terraform, Prisma Cloud Platform, Devsecops, Security Orchestration, Automation & Response - **Published:** October 29, 2026 - **Apply:** https://www.techcareers.com/job.asp?id=3479358318&tx=VT6762TYD&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role 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. Preferred Qualifications * 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. #GDITFedHealthJobs ## Description We are seeking an experienced Senior Cloud Security Engineer to design, implement, operate, and continuously improve security infrastructure across on-premises data centers and AWS environments supporting business and critical scientific workloads. The ideal candidate is a hands-on engineer with strong expertise in AWS security, Palo Alto Networks firewalls, hybrid-cloud security architecture, Infrastructure as Code (IaC), and security automation. This role operates across both architecture and implementation - from defining security patterns and policies to configuring infrastructure, troubleshooting complex issues, and automating security operations. This role is mostly remote, but must be within commuting distance to Rockville, MD for occasional onsite requirements. This role requires you to obtain and maintain a Public Trust and to provide onsite fingerprinting at a designated facility. This investigation may review personal and criminal behavior, financial conduct, foreign influence, as well as other adjudications. Responsibilities and Duties Cloud & Network Security * 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. Security Architecture & Automation * 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. Operations & Incident Response * 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.