Linux System Administrator – AWS Cloud (C2S)

CACI InternationalChantilly, VA
22h

About The Position

CACI is seeking a highly skilled Linux System Administrator to join our team in supporting a Government infrastructure by architecting and maintaining secure Linux-based systems in AWS Commercial Cloud Services (C2S) environment. You'll work on business-essential enterprise applications while advancing your cloud and automation skills.

Requirements

  • TS/SCI with CI Polygraph
  • Security+ Certification (IAT level 2 or higher)
  • 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

Nice To Haves

  • Certifications 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

Responsibilities

  • Cloud Infrastructure & Automation 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
  • Team Environment Work within a productive and collaborative team environment with well-defined objectives, clear communication and mutual respect.

Benefits

  • healthcare
  • wellness
  • financial
  • retirement
  • family support
  • continuing education
  • time off benefits
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