Linux System Administrator – AWS Cloud (C2S)

CACI • Chantilly, VA

10h

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

• Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed