Cloud Security Administrator

# Cloud Security Administrator Leidos  
· leidos.com Category:
Cloud Security

Location:

Adelphi, MDSalary:
$107,900 – $195,050

Clearance:
TS/SCI## Quality of life

What the posting states. Hover or tap a perk to see the line it came from.
* Retirement match
* Paid parental leave
* Equity* Learning budget

Help secure mission-critical cloud environments supporting our nation's cyber defense.

Leidos is seeking a Cloud Security Administrator to support the U.S. Army C5

ISR Cyber Security Service Provider (CSSP). In this role, you'll help secure and sustain AWS cloud environments by managing security controls, identifying vulnerabilities, coordinating remediation, and supporting continuous compliance monitoring.

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

If you're passionate about AWS security, vulnerability management, and protecting critical defense infrastructure, this is an opportunity to apply your expertise to a mission that matters.

Location:

Adelphi, MD | Hybrid (3 Days Onsite)
Clearance: U.S. citizenship with an active Secret Required | TS/SCI Required for Position Primary 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, Cloud Trail, Cloud Watch, Security Hub, Guard Duty, KMS, and VPC security controls.

Support Risk Management Framework (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.

Basic Qualifications Bachelor's degree with 8 years of relevant experience or master's degree with 4 years of relevant experience. Additional relevant experience may be considered in lieu of a degree.

Hands-on experience administering security controls in AWS or other enterprise cloud environments.

Working knowledge of AWS security services, including IAM, Cloud Trail, Cloud Watch, Security Hub, Guard Duty, Systems Manager, KMS, and VPC security controls.

Experience with vulnerability management, security assessments, compliance monitoring, patch management, and remediation tracking.

Familiarity with Linux and Windows security administration, including host-level and cloud security findings.

Understanding of DoD cybersecurity requirements, RMF/ATO, NIST SP 800-53, and DISA STIG/SRG standards.

Experience with SIEM, endpoint security, enterprise logging, security monitoring, and ticketing platforms.

Strong analytical, troubleshooting, documentation, and communication skills.

Ability to meet applicable DoD 8140 qualification requirements at start and obtain required CSSP and Computing Environment certifications within 90 days, as applicable to the assigned work role.

U.S. Citizenship with an active Secret security clearance required at start, with TS/SCI required for the position, subject to program access and eligibility requirements.

Preferred Qualifications Experience securing DoD cloud environments, including AWS Gov Cloud, IL4/IL5/IL6, Cloud…