Job Title: Linux Level 3 Lead
Location(s): Chicago, IL
(Remote)
Job DescriptionThe Linux Level 3 Engineer serves as a senior technical expert responsible for the design, administration, optimization, and support of enterprise Linux environments. This role handles complex incidents, drives root cause analysis, implements automation, and provides architectural guidance while ensuring high availability, security, and performance of Linux-based platforms.
Key Responsibilities:Engineering & Administration- Design, deploy, and maintain Linux environments (RHEL, etc.) across on-premises and cloud platforms.
- Perform advanced system administration including patching, upgrades, kernel tuning, and performance optimizationLead platform standardization and hardening efforts.
Advanced Troubleshooting (L3 Support)- Act as escalation point for L1/L2 teams for complex incidents and outages.
- Conduct deep-dive troubleshooting on OS, networking, storage, and performance issues.
- Drive root cause analysis (RCA) and implement long-term fixes.
Automation & DevOps Integration- Develop and maintain automation using Ansible, Shell, Python, or similar tools.
- Implement Infrastructure as Code (IaC) for provisioning and configuration management.
- Support CI/CD pipelines and platform integration with DevOps tools.
Collaboration & Leadership- Mentor L1/L2 engineers and provide technical guidance.
- Collaborate with application, cloud, and infrastructure teams.
- Provide input into architecture, design, and modernization initiatives.
Experience:- 8-12+ years of experience in Linux system administration and engineering.
- Experience working in enterprise or managed services environments.
- Prior experience in L3 support or SME role preferred.
Certifications:- Red Hat Certified Engineer (RHCE) or RHCSA.
