AWS Security Engineer

Job Summary

We are seeking an experienced AWS Security Engineer to ensure the security, compliance, and protection of our cloud‑based infrastructure. The ideal candidate will have strong hands‑on experience with AWS security services, cloud risk assessments, incident response, and continuous security monitoring. This role collaborates closely with Cloud Engineering, Dev Ops, and Application teams to maintain a secure, compliant, and resilient cloud environment.

Lead and support vulnerability scanning and remediation efforts for cloud resources

• Manage IAM roles/policies, identity federation, encryption, KMS, and secrets management
• Provision and manage AWS infrastructure using Infrastructure as Code (IaC) tools such as Terraform
• Develop custom scripts for Cloud Watch metrics and alarms based on application‑specific probes
• Implement alerting and automated remediation workflows
• Assist with incident response, investigations, and root cause analysis of cloud security events
• Develop and maintain security architecture documentation, runbooks, and procedures
• Conduct AWS security posture assessments using automated tools
• Monitor and maintain AWS security controls using cloud‑native detection and monitoring tools
• Partner with Dev Ops and engineering teams to embed security best practices into CI/CD pipelines and IaC
• Implement and enhance AWS security controls, guardrails, and baseline configurations
• Continuously evaluate AWS environments for cost‑effective security improvements
• Conduct threat modeling, vulnerability analysis, and remediation coordination
• Support internal and external audits by gathering evidence and preparing documentation
• Maintain compliance with NIST, FISMA, and FedRAMP requirements
• Assist in risk assessments and security control testing
• Support change control processes and ensure accurate system/process documentation
• Evaluate emerging cloud security tools and recommend improvements
• Participate in on‑call rotations to support 24/7 production systems

US

Agency Clearance

• Bachelor's degree and 8 years or 6 years with a Master's degree.
• Proficiency with Python and Bash scripting
• Hands‑on experience with ECS, EKS, EC2, and Lambda
• Strong experience with Git and CI/CD pipelines
• Advanced Terraform skills, including modules, variables, and work spaces
• Deep knowledge of AWS security services: IAM, KMS, Guard Duty, Security Hub, Cloud Trail, Config Rules
• Ability to conduct IAM policy/permissions audits and enforce least privilege
• Skilled at interpreting access logs, cloud configurations, and IAM policies
• Excellent written and verbal communication skills
• Strong analytical and problem‑solving abilities
• Must be a U.S. Citizen
• Must be able to obtain and maintain the required Agency clearance

• AWS certifications such as Cloud Practitioner or Security Specialty
• Security compliance or audit certifications (e.g., CISA, Security+, etc.)

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 do the can't be done by solving the most daunting challenges facing our customers. Visit  to learn how we're keeping people around the world safe and secure.

$80,000 - $128,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual's experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.

EEO:
Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.