Cloud Infrastructure Systems Administrator

CACI International Inc

. Build and manage AWS infrastructure across multi-account, multi-environment landing zones .

Posted 10/15/2026full-timeRemote • Illinois • United StatesMid-LevelSenior💰 $75,200 - $158,100 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in managing AWS infrastructure, including IaaS and IaC, while ensuring compliance with STIG and security standards. Proficient in system administration across Windows and Linux environments, with strong skills in performance monitoring, troubleshooting, and technical documentation.

Highest-signal resume keywords

AWS Infrastructure ManagementSTIG ComplianceSystem AdministrationTerraform ExpertiseSecurity+ Certification

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

AWSIaaSIaCWindows Operating SystemLinux Operating SystemKubernetesDockerShell ScriptingPatch ManagementActive Directory

Soft Skills

Strong Communication SkillsAbility to Work Independently

Tools & Technologies

GitJenkinsTerraformAnsibleSplunkCloudWatch

Certifications & Qualifications

Active DoD Secret ClearanceSecurity+AWS Certification

Industry Keywords

SAFe AgileDisaster Recovery PlanningBackup AutomationResilience EngineeringNetwork Administration

Tech Stack

Tools & technologies

AnsibleAWSCloudDockerFirewallsJenkinsKubernetesLinuxPerlSplunkTerraform

About the role

Key responsibilities & impact

Build and manage AWS infrastructure across multi-account, multi-environment landing zones
Install, configure, deploy, and maintain servers, software, and supporting platforms
Monitor system performance and troubleshoot issues
Manage access controls, backups, firewalls, and compliance tasks
Collaborate in a SAFe Agile delivery model with application, data, and security teams
Support IaaS, IaC, networks, and firewalls
Perform upgrades and IAVA patching and ensure STIG compliance
Perform proactive performance and availability monitoring
Investigate and resolve system outages and technical issues
Manage AWS cloud resources for program and mission requirements
Develop and maintain technical documentation, system manuals, and IT policies
Contribute to multi-region disaster recovery planning, backup automation, failover design, and resilience engineering

Requirements

What you’ll need

Active DoD Secret clearance
5 years of related technical experience
Bachelor’s degree
Security+, AWS, or similar IT certification
Experience as a System Administrator, Network Administrator, or similar technical role
Strong verbal and written communication skills
Hands-on experience with servers, LAN/WAN networks, cloud environments, and patch management
Ability to understand, document, and distill technical solution requirements
Ability to work independently with minimal supervision
Expertise with Windows and Linux operating systems
Production Kubernetes/EKS experience, including Docker/containerized workloads and image building
Active Directory and identity federation integration experience
Familiarity with Git, Jenkins CI/CD, Terraform, Docker, and automation pipelines
Experience with STIG compliance and security patching
Working knowledge of AWS-hosted environments and cloud-native services
Scripting experience with Shell, Perl, or PowerShell
Strong Terraform experience and Ansible knowledge
Exposure to Splunk or CloudWatch
Ability to travel to Scott Air Force Base quarterly

Benefits

Comp & perks

Flexible time off benefit
Robust learning resources
Healthcare benefits
Wellness benefits
Financial benefits
Retirement benefits
Family support benefits
Continuing education benefits
Time off benefits
Competitive compensation
Learning and development opportunities