Jobs and Careers
CA

Linux System Administrator - AWS Cloud (C2S)

CACI International Inc
United Statesfull_timeVerifiedPosted 6 Apr 2026
💰 $218,100/yr($103,800/yr$218,100/yr)

About the role

Job Title: Linux System Administrator - AWS Cloud (C2S)

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: TS/SCI with Polygraph

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Local

* * *


The Opportunity:


Join our team supporting critical Government infrastructure by architecting and maintaining secure Linux-based systems in AWS Commercial Cloud Services (C2S) environment. You'll work on enterprise applications serving mission-critical operations while advancing your cloud and automation skills.

Responsibilities:

  • Design, deploy, and maintain Linux servers (Amazon Linux 2, Amazon Linux 2023) in AWS C2S environments

  • Build automation scripts (Bash, Python, PowerShell) to streamline provisioning, configuration management, and system maintenance          

  • Implement Infrastructure as Code practices for repeatable, scalable deployments           

  • System Operations & Reliability

  • Ensure high availability and performance of production applications through proactive monitoring (CloudWatch) and system health metrics       

  • Execute application and database migrations with minimal downtime        

  • Deploy security patches (IAVA), updates, and maintain compliance with security baselines          

  • Security & Compliance

  • Collaborate with Information System Security Engineers (ISSE) to maintain security accreditation under ICD 503           

  • Document security controls, create system security plans, and support Authority to Operate (ATO) processes          

  • Maintain configuration management aligned with contract and customer requirements        

  • Technical Documentation & Collaboration

  • Create clear technical documentation: architecture diagrams, SOPs, runbooks, and system documentation     

  • Troubleshoot complex issues across hardware, software, networking, and cloud services          

  • Support development, testing, and production environments including web servers, databases (MySQL, SQL Server), and DevOps tools

Qualifications:

Required:

  • Active TS/SCI security clearance with CI polygraph

  • CompTIA Security+ (or IAT Level II equivalent)        

  • Technical Skills

  • 3+ years Linux system administration (Red Hat, CentOS, Ubuntu, or Amazon Linux)        

  • Hands-on AWS experience, specifically in C2S environments           

  • Experience with Microsoft ecosystem: Active Directory, Windows Server, IIS, SQL Server       

  • MySQL database administration        

  • Strong organizational skills with ability to prioritize competing demands independently       

Desired:

  • AWS Certified Solutions Architect – Associate

  • AWS Certified SysOps Administrator        

  • Red Hat Certified System Administrator (RHCSA)        

  • Advanced Technical Skills

  • AWS services: Auto Scaling, ELB, CloudWatch, Lambda, ECS, EC2, VPC, S3, IAM       

  • Scripting proficiency: Python, Bash, PowerShell, JSON        

  • Configuration management tools: Ansible, Terraform, CloudFormation           

  • Containerization: Docker, Kubernetes, ECS     

  • CI/CD pipelines: Jenkins, GitLab CI, Team Foundation Server      

  • Version control: Git           

  • Security & Compliance

  • ICD 503 framework familiarity        

  • Experience with STIG implementation and security scanning tools     

Core hours: 7:00 AM – 3:00 PM
 

-

What You Can Expect:

 A

Apply for this role

Generate a tailored application kit with a matched cover letter, interview prep, and CV highlights — in under 60 seconds.

Apply Now →Generate Application Kit

Free account required — sign up in 30s

Company

CACI International Inc

View company profile →