About Peraton

Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees solve the most daunting challenges that our customers face. Visit peraton.com to learn how we’re keeping people around the world safe and secure.

Program Overview

RDG (Risk Decision Group) provides nationwide background investigations compliant with national government standards to include support of continuous vetting for over 110 government agencies.

About The Role

Peraton is seeking an experienced AWS Cloud Security Engineer to design, build, and operate security controls for a FedRAMP Moderate-authorized AWS cloud infrastructure supporting Peraton’s RDG (Risk Decision Group) program. This is a hands-on role with a key part in day-to-day cloud security operations, embedding secure-by-design principles into cloud architecture, and maintaining continuous FedRAMP compliance.

The engineer is responsible for implementing security architecture, hardening cloud environments, maintaining continuous compliance monitoring, and supporting Authorization to Operate (ATO) activities. The ideal candidate has hands-on experience securing AWS environments within a federal compliance framework (FedRAMP, NIST 800-53, NIST 800-171, RMF, or similar).

This is a 100% remote position.

Responsibilities

• Design and implement security architecture for AWS workloads aligned with FedRAMP Moderate baseline controls
• Build and maintain security guardrails using AWS-native services (IAM, GuardDuty, Security Hub, Config, CloudTrail, KMS, WAF, Macie, Inspector)
• Implement and manage Infrastructure as Code security controls (Terraform/CloudFormation) with policy as code
• Support System Security Plans (SSPs), ATO activities, and POA&M remediation
• Perform continuous monitoring, vulnerability scanning, patch management tracking, and monthly/annual assessment support
• Configure and maintain centralized logging, SIEM integration, and audit trail retention per FedRAMP/NIST requirements
• Implement least-privilege IAM policies, service control policies (SCPs), and cross-account access controls.
• Manage encryption at rest and in transit (KMS, ACM, TLS enforcement) per FIPS 140-2/140-3 requirements where applicable
• Respond to security incidents, perform root cause analysis, and support cloud-specific incident response playbooks
• Collaborate with DevOps/Platform teams to embed security into CI/CD pipelines (DevSecOps)
• Maintain documentation for control implementation statements, architecture diagrams, and audit evidence
• Support boundary definition and system categorization activities (FIPS 199) as required

Qualifications

Required Qualifications

• US citizenship required; ability to obtain and maintain a Top-Secret eligible clearance
• Minimum 8 years work experience with BS/BA in computer science, Information Systems, or a related field (or equivalent experience)
• 5+ years of hands-on AWS engineering experience, with 3+ years specifically in cloud security roles
• Demonstrated experience working within a FedRAMP Moderate or FedRAMP High, DoD IL4/IL5, or equivalent federal compliance environment
• Experience supporting or maintaining an SSP and RMF processes
• Experience with AWS GovCloud (US), AWS Commercial, or equivalent federal AWS environments
• Strong hands-on expertise with AWS security services: IAM, GuardDuty, Security Hub, AWS Config, CloudTrail, KMS, WAF, Macie, Inspector, and Systems Manager
• Solid understanding of NIST SP 800-53 Rev 5 control families (AC, AU, CM, IA, SC, SI, etc.) and the ability to map implementations to specific controls
• 3+ years of experience with Infrastructure as Code (Terraform and/or CloudFormation), including security scanning and policy-as-code tools
• Networking security fundamentals: VPC design, security groups, NACLs, PrivateLink, Transit Gateway, and network segmentat…