Linux System Administrator

Symbioun Technologies, Inc

Raleigh, United States of America

yesterday

Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Working hours

Regular working hours

Languages

English

Experience level

Senior

Raleigh, United States of America

Microsoft Active Directory

Amazon Web Services (AWS)

Audit Trail

Bash

File Systems

Monitoring of Systems

Python

Kerberos (Protocol)

Network Troubleshooting

Lightweight Directory Access Protocols (LDAP)

Role-Based Access Control

Red Hat Enterprise Linux - RHEL

Ansible

Runbook

Software Engineering

Software Vulnerability Management

Scripting (Bash/Python/Go/Ruby)

Data Ingestion

Amazon Web Services (AWS)

Cloudformation

Amazon Web Services (AWS)

Infrastructure Automation Frameworks

Iptables

Performance Monitor

CIS Benchmarks

Terraform

User Administration

Manage, configure, and maintain 400+ Red Hat Enterprise Linux (RHEL) servers across development, staging, and production environments in AWS
Build and maintain automation scripts using Bash/Python for ongoing operations
Handle user management, permissions, RBAC, and sudo policies
Apply STIG hardening, manage OS firewalls, patching cycles, CIS controls, SSH hardening, and vulnerability remediation
Set up and maintain enterprise authentication using Active Directory, Kerberos, LDAP/LDAPS, and SSHD
Monitor system performance, enable scaling up/down, and implement proactive alerting and log ingestion pipelines
Troubleshoot boot failures, kernel panics, network issues, file system problems (FSx/EBS/EFS), and authentication failures
Perform OS-level backup and recovery
Use Ansible, Terraform, or CloudFormation to automate infrastructure
Document runbooks, architecture diagrams, troubleshooting guides, and onboarding materials
Collaborate with application development and operations teams
Participate in on-call rotation (evenings and weekends)