Senior Cloud Systems Administrator - AWS & Security

CACI; United States; On-site; USD 75,000 - 158,000; Full time

Job summary

CACI is seeking a Cloud Systems Administrator to join our Platform Team in an agile AWS environment. You will support mission-critical platforms, ensuring secure, highly available systems, and contribute to modernization across cloud infrastructure.

The role requires 5+ years of sysadmin/ cloud admin experience, strong Windows and Linux skills, and the ability to work independently within a SAFe framework. Production Kubernetes, Terraform, and Ansible skills are highly valued.

Qualifications

• Active Secret Clearance required.
• 5+ years as a System Administrator, Cloud Administrator, or similar role.
• Experience managing servers, networks, patching, and cloud/virtual environments.
• Hands‑on experience with Windows and Linux operating systems.
• Ability to work independently with minimal supervision.
• Strong verbal and written communication skills.
• Bachelor's Degree or equivalent experience.

Responsibilities

• Install, configure, deploy, and maintain servers, applications, and software.
• Monitor system performance and troubleshoot production issues.
• Ensure infrastructure security, efficiency, and overall system health.
• Operate within a SAFe delivery model, partnering with cross‑functional teams.
• Support IaaS, IaC, networking, and firewall components.
• Perform system upgrades, IAVA patching, and ensure STIG compliance.
• Troubleshoot outages and implement root‑cause resolutions.
• Manage AWS resources and optimize cloud environments.
• Maintain strong security practices including access controls, backups, and firewalls.
• Build and maintain internal technical documentation, runbooks, and IT policies.

Skills

Active Secret Clearance

5+ years experience

Windows & Linux

Independent worker

Strong communication

Education

Bachelor's degree or equivalent

Tools

Kubernetes

Terraform

Ansible

Active Directory

Splunk/CloudWatch

PowerShell

Shell

Job description

CACI is seeking a Cloud Systems Administrator to join our Platform Team in an agile AWS environment. You will support mission-critical platforms, ensuring secure, highly available systems, and contribute to modernization across cloud infrastructure.

The role requires 5+ years of sysadmin/ cloud admin experience, strong Windows and Linux skills, and the ability to work independently within a SAFe framework. Production Kubernetes, Terraform, and Ansible skills are highly valued.