Senior Cloud Security Engineer

Horizon3.ai

Senior Cloud Security Engineer analyzing and implementing security for AWS GovCloud infrastructure at a rapidly growing cybersecurity company. A role requiring strong cloud security and compliance expertise.

Posted 7/24/2026full-timeRemote • 🇺🇸 United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Cloud Security Engineering, focusing on AWS environments and implementing robust security controls. Proficient in Infrastructure as Code using Terraform, DevSecOps practices, and compliance with security standards such as FedRAMP and DoD IL-4/5.

Highest-signal resume keywords

AWS Security EngineeringInfrastructure as Code (IaC)DevSecOps IntegrationIncident Response & AnalysisAWS Certified Security - Specialty

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

AWS IAMTerraformGitLab CI/CDGuardDutySecurity HubAWS WAFCloudTrailThreat ModelingRisk AssessmentSecurity Policies

Soft Skills

Analytical ThinkingCommunicationProblem SolvingLeadership

Certifications & Qualifications

AWS Certified Security - SpecialtyCISSP

Industry Keywords

Cloud SecurityComplianceFedRAMPDoD IL-4/5Cybersecurity

Tech Stack

Tools & technologies

AWSCloudCyber SecurityTerraform

About the role

Key responsibilities & impact

Cloud Security Engineering: Design and implement robust security controls across AWS environments, including AWS IAM, SCPs, VPC security, S3 bucket policies, and key management.
Infrastructure as Code (IaC): Utilize Terraform to deploy and manage security configurations, ensuring "Security as Code" is integrated into all cloud deployments.
DevSecOps Integration: Implement and maintain GitLab CI/CD pipelines for automated security testing and scanning of AWS resources.
Posture Management & Monitoring: Continuously monitor and improve cloud security posture by managing and tuning services such as GuardDuty, Security Hub, AWS WAF, and CloudTrail.
Identity & Access Management: Define and enforce IAM best practices, including least privilege, federated identity, RBAC, and automated remediation of deficiencies.
Threat Modeling & Assessment: Conduct architecture reviews and risk assessments for new cloud features to identify and mitigate vulnerabilities before deployment.
Incident Response & Analysis: Investigate suspected attacks and lead security incident management, providing post-mortem analysis and developing long-term preventive measures.
Compliance & Standards: Develop and maintain security policies and procedures to ensure compliance with FedRAMP and DoD IL-4/5.
Reporting & Metrics: Develop creative reporting mechanisms and metrics to communicate cloud risk and security themes to business owners and leadership.

Requirements

What you’ll need

Education: Bachelor's degree in Computer Science or Cybersecurity; Military Service Equivalent.
Experience: Minimum five (5) years of experience in securing AWS environments; 5+ years of general cybersecurity experience.
Certifications: AWS Certified Security - Specialty preferred; CISSP or relevant security certifications preferred.
Clearance/Auth: Must be authorized to work in the U.S. and pass a criminal background check.
U.S. Government Security Clearance is a plus.

Benefits

Comp & perks

Health insurance
401(k) matching
Flexible work hours
Paid time off
Professional development opportunities