Senior Cloud Security Architect — AI & Gov Cloud

Amentum; Providence (RI); On-site; USD 150,000 - 165,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

Paid time off

401(k) matching

Job summary

Amentum is seeking a Senior Cloud Security Architect to lead hands-on design, deployment, and operation of security controls across Microsoft 365, Azure, AWS, and hybrid environments, including AI workloads. The role emphasizes threat modeling, secure patterns, and automated deployments using infrastructure as code.

You will collaborate with Risk, Compliance, and Platform teams to translate regulatory requirements into practical security controls while ensuring scalable, secure cloud

Qualifications

• U.S. citizenship is required.
• 8+ years in cloud/security/infrastructure with 5+ years in design/implementation; degree in CS/IT/engineering or equivalent.
• Strong hands-on knowledge of Microsoft cloud or AWS security capabilities with practical experience in Microsoft 365, Azure, AWS, and hybrid services.
• Experience designing, deploying, and troubleshooting controls for cloud identity, network segmentation, data protection, logging, posture management, and workload protection.
• Experience applying cloud security principles to AI/ML, generative AI, enterprise copilots, agents, or similar platforms, including threat modeling and control design.
• Experience using infrastructure as code, source control, scripting, and deployment automation to implement and maintain cloud controls.
• Experience with threat modeling, technical risk assessment, and translating security or regulatory requirements into working technical solutions.

Responsibilities

• Design and implement security controls across cloud platforms and AI workloads.
• Lead threat modeling for new services and high-risk use cases.
• Develop reusable IaC components and deployment automation for security policies.
• Collaborate with risk, compliance, and platform teams to ensure regulatory alignment and secure adoption of AI capabilities.

Skills

Cloud security

Threat modeling

IaC automation

Security architecture

Azure/AWS

Education

Bachelor’s degree

Cybersecurity/IT/Engineering

Job description

Amentum is seeking a Senior Cloud Security Architect to lead hands-on design, deployment, and operation of security controls across Microsoft 365, Azure, AWS, and hybrid environments, including AI workloads. The role emphasizes threat modeling, secure patterns, and automated deployments using infrastructure as code.

You will collaborate with Risk, Compliance, and Platform teams to translate regulatory requirements into practical security controls while ensuring scalable, secure cloud