AWS System Administrator

CACI International•St. Louis, MO

1d•Onsite

About The Position

The TCS team is looking for an AWS System Administrator to work on Enterprise Cross-Domain Systems and associated projects. These systems provide reliable data transfers between domains for general users and programs. In this role, you will be responsible for the day-to-day administration and maintenance of our AWS infrastructure. You will ensure the availability, performance, and security of our cloud-based systems and applications.

Requirements

Active TS/SCI security clearance (must obtain a polygraph within 6 months of start date)
Bachelor’s Degree in a Technical field (i.e. Information Technology, Information Systems, Computer Science)
Minimum 5 years of relevant experience.
DoD 8140.01 / DoD 8570.01-M.IAT Level II Certification
Strong hands-on experience with Red Hat Enterprise Linux (RHEL) 7/8/9 administration
Proficiency in Linux system administration including user management, file systems, networking, and service
Knowledge of Linux shell scripting and command-line tools

Responsibilities

Manage AWS resources: Provision, configure, and manage AWS resources such as EC2 instances, EBS volumes, VPCs, security groups, and IAM roles.
Administer Linux/RHEL systems: Manage and maintain RHEL-based EC2 instances and on-premises Linux servers, including system updates, patch management, and performance tuning.
Monitor system performance: Monitor system performance metrics, identify and troubleshoot issues, and implement corrective actions.
Maintain system security: Implement and enforce security best practices, including access control, data encryption, and vulnerability management.
Automate tasks: Automate routine administrative tasks using scripting languages (e.g., Python, Bash) and AWS tools (e.g., AWS CLI, CloudFormation).
Troubleshoot and resolve issues: Diagnose and resolve technical issues related to AWS infrastructure, Linux/RHEL operating systems, and applications.
Implement and maintain backups: Implement and maintain backup and recovery procedures for AWS resources.
Stay current with AWS technologies: Keep abreast of the latest AWS services, features, and best practices.
Collaborate with teams: Work closely with development, operations, and security teams to ensure smooth and efficient operations.