Position Title Senior Linux System Administrator

Position Type Contract

Duration Long Term

Interview Type In Person

Country USA

Work Location Raleigh, NC

Work Preference Hybrid

1. Role Requirements

3+ years of experience in Linux Administration (Red Hat Enterprise Linux - RHEL) on AWS
3+ years of hands-on experience with AWS services (EC2, S3, RDS, VPC, EBS, etc.)
5+ years of experience with authentication systems (Active Directory, Kerberos, LDAP/LDAPS, SSSD)
7+ years of experience in security hardening, patching, and vulnerability management
3+ years of experience in automation tools (Ansible, Terraform, CloudFormation)
Strong experience in Bash/Python scripting (7+ years preferred)
Experience in system monitoring, performance tuning, and scaling environments
Knowledge of networking tools (iptables, HAProxy, Linux IPVS)
Experience working in AWS multi-account environments (Prod/Non-Prod)
Familiarity with backup, recovery, and disaster management processes
Linux certifications (RHCE, RHCT, LPIC) are a plus
Willingness to be on-call (evenings/weekends)

2. Responsibilities

Install, configure, and maintain Linux (RHEL) systems on AWS/Hybrid Cloud
Deploy and manage AWS infrastructure (EC2, S3, RDS, EBS, FSx, EFS)
Perform system monitoring, performance tuning, and troubleshooting
Manage user access, permissions, and security policies (RBAC, sudo)
Execute patching, upgrades, and package management
Implement system hardening and security best practices (STIG, CIS controls)
Handle backup, recovery, and disaster recovery processes
Build and maintain automation scripts and infrastructure (Ansible, Terraform)
Troubleshoot issues including:
- Authentication failures (Kerberos, LDAP)
- Kernel/boot failures
- Network and file system issues
Collaborate with development and operations teams for deployments
Maintain documentation (runbooks, architecture diagrams, SOPs)
Provide technical support and ensure system stability

3. Skills Required