Senior Cloud Security Architect: AI & Gov Cloud

Amentum; Pierre (SD); On-site; USD 150,000 - 165,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

Paid time off and holidays

Retirement benefits (401(k) matching)

Educational reimbursement

Parental leave

Employee stock purchase plan

Tax-saving options

Disability and life insurance

Pet insurance

Job summary

Amentum is seeking a Senior Cloud Security Architect in the United States to design, implement, and operate security controls across Microsoft 365 Commercial and GCC High, Azure, AWS, and hybrid environments. You will lead hands-on configuration, testing, and automation, developing reusable patterns for AI safeguards and secure cloud deployments.

You will collaborate with risk, compliance, and platform teams to translate regulatory requirements into technical controls, perform threat modeling,

Qualifications

• Eight or more years of relevant experience in cloud security engineering.
• Hands-on design, deployment, and testing of security controls for cloud environments.
• Experience with Microsoft 365 GCC High, Azure, AWS, and hybrid services.
• Ability to translate security/regulatory requirements into technical controls.

Responsibilities

• Design and implement security controls across M365, GCC High, Azure, AWS, and hybrid services.
• Lead threat modeling and risk assessments for new services and major changes.
• Develop reusable IaC components and deployment automation for security policies.
• Coordinate with risk, compliance, and platform teams on control validation and audits.
• Mentor engineers and provide hands-on support for complex cloud and AI security issues.

Skills

Cloud security

Threat modeling

Infrastructure as code

Security design

AI security

Education

Bachelor's degree in cybersecurity

Tools

Terraform

Job description

Amentum is seeking a Senior Cloud Security Architect in the United States to design, implement, and operate security controls across Microsoft 365 Commercial and GCC High, Azure, AWS, and hybrid environments. You will lead hands-on configuration, testing, and automation, developing reusable patterns for AI safeguards and secure cloud deployments.

You will collaborate with risk, compliance, and platform teams to translate regulatory requirements into technical controls, perform threat modeling,