Senior AWS Cloud Security Engineer

Leidos; Lincoln (MA); On-site; USD 108,000 - 195,000; Full time

Job summary

Leidos LLC is seeking a Senior AWS Cyber Engineer to design, deploy, and maintain secure AWS cloud environments for USAF missions. You will act as SME for cybersecurity requirements, assess tooling, and drive compliance across the cloud architecture.

The role emphasizes RMF/ATO work, vulnerability management, and collaboration with cross-functional teams, with travel to Hanscom AFB area as needed.

Qualifications

• DoD 8570/8140 IAT Level II baseline certification (e.g., Security+ CE, CySA+, or equivalent) required.
• AWS Certified Security – Specialty certification required.
• Active DoD Secret security clearance required.
• Hands-on experience with AWS CLI, Ansible Playbooks, Tenable Nessus, and implementing/remediating STIGs.
• Experience with ACAS/Nessus scanners and related compliance tooling.
• Hands-on experience with AWS CLI, Ansible Playbooks, Nessus, and implementing/remediating STIGs

Responsibilities

• Design, deploy, configure, operate, and maintain RMF/ATO-related documentation for AWS SIPRNet environments.
• Serve as SME for cybersecurity requirements and tooling across system design, builds, and accreditation efforts.
• Operate and maintain compliance tools (ACAS/Nessus, AWS Inspector, Security Hub) and monitor CloudTrail, AWS Config, GuardDuty.
• Prepare vulnerability reports, POA&Ms, and detailed technical documentation to support cybersecurity readiness.
• Collaborate with team members, mentor junior staff, and brief customers on cybersecurity status.
• Ensure compliance with SCCA, Cloud Computing SRG, and STIG/SRG requirements.
• Ensure compliance with STIG/SRG; verify patch compliance and remediation.
• Prepare detailed technical documentation and briefings for customers.
• Mentor junior staff and foster a learning environment.

Skills

Cloud security

Security best practices

Incident response

Documentation

Mentorship

Education

Bachelor's degree + 8+ years

Master's degree + 6+ years

Tools

AWS CLI

Ansible Playbooks

Tenable Nessus

ACAS

STIGs

Job description

Leidos LLC is seeking a Senior AWS Cyber Engineer to design, deploy, and maintain secure AWS cloud environments for USAF missions. You will act as SME for cybersecurity requirements, assess tooling, and drive compliance across the cloud architecture.

The role emphasizes RMF/ATO work, vulnerability management, and collaboration with cross-functional teams, with travel to Hanscom AFB area as needed.