RHEL SYSTEM ADMINISTRATOR

VSolvit

14h

About The Position

The RHEL System Administrator is responsible for managing and maintaining Red Hat Enterprise Linux (RHEL) environments within AWS GovCloud for Department of Navy systems. The ideal candidate ensures the availability, security, and performance of RHEL systems while adhering to strict Department of Defense (DoD) cybersecurity standards and compliance requirements. This role requires a blend of deep Linux expertise, cloud infrastructure management, and a systematic approach to troubleshooting and security remediation. As with any position, additional expectations exist. Some of these include, but are not limited to, adhering to normal working hours, meeting deadlines, following company policies as outlined by the Employee Handbook, communicating regularly with assigned supervisor(s), staying focused on the assigned tasks, and completing other tasks as assigned.

Requirements

Must be a U.S. Citizen
Bachelor’s degree in Computer Science, Information Technology, or a related field
Proven experience in AWS Cloud systems administration, including EC2, EBS, S3, and CloudFormation
Expertise in RHEL management, including configuration, upgrades, migration, and security patching
Experience provisioning and sustaining Kubernetes Clusters using AWS EKS
Hands-on experience with STIG application and remediating vulnerabilities reported in ACAS
Experience with scripting (Python, Bash) and configuration management tools like Ansible
Active DoD Secret clearance or the ability to obtain one
If applicable: If you are or have been recently employed by the U.S. government by the U.S. government, a post-employment ethics letter will be required if employment with VSolvit is offered

Nice To Haves

Active DoD Secret or Top Secret clearance
Experience installing and configuring Antivirus agents (McAfee/Trellix, MDE) in Linux environments
Knowledge of networking protocols (TCP/IP, DNS, Load balancing)
Certifications such as Red Hat Certified System Administrator (RHCSA) or AWS Certified SysOps Administrator

Responsibilities

Manage AWS GovCloud resources, including EC2 instances, VPC, Security Groups, and Elastic Block Storage (EBS)
Configure and optimize AWS services such as S3 and Elastic Kubernetes Service (EKS) to support RHEL systems
Collaborate with the Cloud Hosting Provider (CSP) to ensure proper installation, configuration, patching, and upgrades of RHEL
Collaborate with the CSP to ensure all inbound and outbound traffic flows through the DISA Cloud Access Point (CAP) in compliance with DoD security policies
Manage logical volumes (LVM), file systems, and ensure regular backups and recovery testing using AWS Backup services
Implement and maintain security controls to meet Risk Management Framework (RMF) and DoD compliance requirements
Apply Security Technical Implementation Guides (STIGs) to RHEL systems and collaborate with IA teams to remediate findings from ACAS scans
Monitor system, event, and file integrity logs to detect and respond to anomalies
Utilize security tools including McAfee ePO Orchestrator, Microsoft Defender Endpoint (MDE), and AWS WAF for intrusion prevention
Develop Bash/Python scripts or use Ansible to automate routine tasks and improve system efficiency
Monitor system resources (CPU, memory, disk) and utilize tools like AWS CloudWatch or Splunk to ensure proactive issue detection
Resolve complex hardware and software issues, performing thorough root cause analysis to prevent recurrence
Maintain detailed documentation of configurations, runbook procedures, and system health reports