Senior Linux & Azure Systems Admin (Onsite)

Asd Web; Montgomery (AL); On-site; USD 110,000 - 150,000; Full time

Benefits offered by this job

Health Insurance

Paid Time Off

401(k) Plan

Professional Certification Incentive

Job summary

Advanced Systems Design, Inc. seeks a Senior Linux Administrator for our client in Montgomery, AL.

The role is onsite from day one and focuses on operating, securing, and optimizing Linux systems across on‑premises and Azure environments, with emphasis on DevOps, container workloads, and Azure-native security tooling. The ideal candidate has 8+ years of enterprise Linux experience, strong Ubuntu/RHEL knowledge, and proficiency in Azure DevOps, Docker, and automation.

Qualifications

• 8+ years of hands-on Linux administration in enterprise or government environments.
• Deep expertise in Ubuntu Server LTS releases.
• Experience with Azure as an operating environment for Linux VMs.
• Experience with Azure DevOps pipelines, repos, and CI/CD for Linux.
• Experience with Docker on Linux, including containers outside managed clusters.
• Advanced Bash scripting and PowerShell proficiency.
• Understanding of UFW, SSH hardening, AppArmor, SSL/TLS management.
• Proficiency with systemd, kernel tuning, PAM, auditd, and log rotation.
• Ability to work independently within a small cross-functional IT/security team.

Responsibilities

• System Administration & Maintenance: Administer and maintain RHEL and Ubuntu Server VMs and physical servers.
• Security Hardening & Compliance: CIS-aligned hardening; work with Azure Defender for Cloud and Azure Policy.
• Patching & Lifecycle: Manage Ubuntu Pro Livepatch and Extended Security Maintenance; automate with APT.
• Automation & Scripting: Write automation in Bash and PowerShell; Cron jobs and scheduled tasks.
• Azure & DevOps Integration: Work with on-prem Azure DevOps for source control, pipelines, and CI/CD for Linux.
• Containers & Secrets Management: Support Docker workloads; integrate with Azure Key Vault and Azure Container Registry.
• Identity & Access Management: Maintain SSSD-based identity integration; sudoers governance and PAM config.
• Storage & Filesystem Management: Manage LVM, XFS/EXT4, and mounts per CIS guidance.
• Audit Support: Collaborate with cybersecurity for audit findings and ongoing posture using Azure-native tooling.

Skills

Linux administration

Ubuntu Server

Azure

Azure DevOps

Docker on Linux

Bash scripting

PowerShell

SSH hardening

AppArmor

PAM

Auditd

Systemd

Kernel tuning

Education

Bachelor's Degree

Tools

Azure DevOps

Docker

Azure Key Vault

Azure Defender for Cloud

Job description

Advanced Systems Design, Inc. seeks a Senior Linux Administrator for our client in Montgomery, AL.

The role is onsite from day one and focuses on operating, securing, and optimizing Linux systems across on‑premises and Azure environments, with emphasis on DevOps, container workloads, and Azure-native security tooling. The ideal candidate has 8+ years of enterprise Linux experience, strong Ubuntu/RHEL knowledge, and proficiency in Azure DevOps, Docker, and automation.