Cloud Security Administrator — AWS & DoD, Hybrid

VulnU; Adelphi (MD); Hybrid; USD 108,000 - 195,000; Full time

Benefits offered by this job

Retirement match

Paid parental leave

Equity

Learning budget

Job summary

Leidos is seeking a Cloud Security Administrator to support the U.S. Army CSSP in Adelphi, MD. You will help secure AWS cloud environments by managing security controls, coordinating remediation, and supporting continuous compliance monitoring.

You will collaborate with cloud engineers, cybersecurity specialists, and mission partners to strengthen cloud security, streamline remediation, and maintain operational readiness across enterprise environments.

Qualifications

• Bachelor's degree with 8 years of relevant experience or master's with 4 years in the field.
• Hands-on experience administering security controls in AWS or other enterprise cloud environments.
• Strong knowledge of RMF/ATO, NIST SP 800-53, and DISA STIG/SRG standards.

Responsibilities

• Administer, monitor, and maintain cloud security controls across AWS 2.0 and CSSP subscriber environments.
• Identify, assess, track, and coordinate remediation of cloud vulnerabilities, misconfigurations, and compliance findings.
• Manage AWS security capabilities, including IAM, CloudTrail, CloudWatch, Security Hub, GuardDuty, KMS, and VPC security controls.
• Support RMF, Authorization to Operate (ATO), and continuous monitoring through security assessments, control validation, and compliance documentation.
• Conduct security configuration reviews across AWS resources, Linux and Windows systems, and supporting cloud infrastructure.
• Support onboarding of CSSP subscribers into centralized logging, vulnerability management, Elastic Agent Defend, and other security services.
• Coordinate security patching, access reviews, change management, incident response, and ongoing security operations.
• Develop and maintain security procedures, operational runbooks, compliance evidence, and technical documentation.

Skills

AWS security services

Vulnerability management

RMF/ATO

DoD 8140

SIEM

Communication skills

Education

Bachelor's degree in related field

Tools

IAM

CloudTrail

CloudWatch

Security Hub

GuardDuty

KMS

VPC security controls

Systems Manager

Tenable.sc/ACAS

Elastic Security

Elastic Agent Defend

Job description

Leidos is seeking a Cloud Security Administrator to support the U.S. Army CSSP in Adelphi, MD. You will help secure AWS cloud environments by managing security controls, coordinating remediation, and supporting continuous compliance monitoring.

You will collaborate with cloud engineers, cybersecurity specialists, and mission partners to strengthen cloud security, streamline remediation, and maintain operational readiness across enterprise environments.