Senior Linux System Administrator- Raleigh, NC - Hybrid at INFO ORIGIN INC

Raleigh, North Carolina, United States -

Full Time

Start Date

Immediate

Expiry Date

30 Jul, 26

Salary

75.0

Posted On

01 May, 26

Experience

10 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Linux Administration, RHEL, AWS, Bash, Python, Ansible, Terraform, CloudFormation, Active Directory, Kerberos, LDAP, SSSD, Security Hardening, Vulnerability Management, Performance Tuning, Networking

Industry

Software Development

Description

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 CORE TECHNICAL SKILLS * Linux Administration (RHEL) * AWS Cloud (EC2, S3, RDS, VPC, EBS, EFS, FSx, ALB, SSM) * Shell Scripting (Bash, Python) * Infrastructure as Code (Terraform, CloudFormation) * Automation (Ansible) SECURITY & SYSTEM SKILLS * System Hardening (STIG, CIS benchmarks) * SSH Hardening, Audit Logging, Vulnerability Remediation * Identity & Access Management (AD, LDAP, Kerberos, SSSD) MONITORING & PERFORMANCE * Performance Monitoring & Scaling * Log Management & Alerting Systems * Troubleshooting (Kernel, Network, File Systems) NETWORKING * iptables * HAProxy * Linux IPVS DOCUMENTATION & OPERATIONS * Runbooks & SOPs * Architecture Diagrams * Operational Documentation

Responsibilities

The role involves installing, configuring, and maintaining Linux systems on AWS while managing infrastructure deployments and security policies. Responsibilities also include performing system monitoring, troubleshooting authentication and network issues, and maintaining operational documentation.