Senior Cloud – Systems Administrator

CACI International Inc

Senior Cloud / Systems Administrator managing AWS infrastructures on a fast-paced Agile development program. Ensuring high availability and driving operational excellence in mission-critical systems.

Posted 6/26/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $75,200 - $158,100 per yearWebsite

ATS Keywords

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Hard Skills

AWS infrastructureWindows operating systemLinux operating systemKubernetesDockerTerraformAnsibleScripting (Shell, Perl, PowerShell)IAVA patchingSTIG compliance

Soft Skills

strong verbal communicationstrong written communicationcross-functional teamworkself-starterindependent work

Tools & Technologies

GitJenkins CI/CDSplunkCloudWatchidentity federationfirewallsbackup automationdisaster recoverytechnical documentationrunbooks

Certifications & Qualifications

Security+ CertificationBachelor’s Degree

Industry Keywords

IaaSIaCnetworkingcloud-native servicesobservabilitylogging toolsperformanceavailabilitysecuritymulti-region

Tech Stack

Tools & technologies

AnsibleAWSCloudDockerFirewallsJenkinsKubernetesLinuxPerlSplunkTerraform

About the role

Key responsibilities & impact

Build and manage AWS infrastructure across multi-account, multi-environment landing zones
Design and implement system solutions that support mission and enterprise needs
Install, configure, deploy, and maintain servers and software across Windows and Linux
Monitor system performance, troubleshoot issues, and ensure uninterrupted operations
Maintain secure, efficient cloud-hosted infrastructure adhering to best practices
Lead system upgrades, IAVA patching, and STIG compliance
Troubleshoot outages and performance issues across compute, network, and storage
Implement multi‑region disaster recovery, backup automation, failover, and resilience strategies
Manage identity, access controls, firewalls, and backup policies
Create and maintain technical documentation, runbooks, and policy guides
Work within a SAFe Agile delivery model alongside application, data, and security teams
Support IaaS, IaC, networking, and security engineering efforts
Ensure systems meet contract requirements for performance, availability, and security

Requirements

What you’ll need

US Citizenship is required and an active Secret Clearance
Proven experience as a System Administrator, Network Administrator, or similar infrastructure role
Strong verbal and written communication skills with cross‑functional teams
Hands‑on experience with servers, LAN/WAN networking, and patch management in virtual/cloud environments
Ability to interpret, distill, and document solution requirements
Self‑starter who can work independently with minimal supervision
Expertise working with Windows and Linux operating systems
Production-level Kubernetes/EKS and containerization experience (Docker/containerd, image building)
Active Directory and identity federation integration expertise
7+ years of related experience
Bachelor’s Degree or equivalent professional experience
Security+ Certification
Familiarity with Git, Jenkins CI/CD, Terraform, Docker
Experience with STIG compliance and security patching
Knowledge of AWS environments and cloud‑native services
Scripting experience (Shell, Perl, PowerShell) and automation technologies
Strong Terraform capability (modules, state management, reusable IaC) and Ansible
Experience with observability and logging tools (Splunk, CloudWatch)

Benefits

Comp & perks

healthcare
wellness
financial
retirement
family support
continuing education
time off benefits