Linux Administrator

Quadax, Inc.•Middleburg Heights, OH

4d•Hybrid

About The Position

The HP-UX / UNIX / Linux Administrator supports enterprise infrastructure operations, with a primary focus on HP-UX systems and broader UNIX/Linux environments. This role is responsible for system administration, performance optimization, security, patching, and troubleshooting across mission-critical platforms. The position also contributes to Linux modernization efforts and helps with system monitoring, deployments, and troubleshooting. The administrator plays a key role in maintaining system stability, security, and operational efficiency across the environment.

Requirements

Bachelor’s degree or equivalent experience
Strong verbal and written communication skills
Ability to work effectively in a fast-paced, team-oriented environment

Nice To Haves

Windows Server 2025 knowledge a plus
Certifications such as RHCSA, RHCE, or CompTIA Linux+
Experience with HP-UX and enterprise UNIX environments
Knowledge of storage systems (SAN/NAS)
Strong analytical and problem-solving skills.
Experience in NOC/SOC environments a plus.
Continuous learning via self-help methods
Linux certification(s) preferred; Windows certification(s) a plus

Responsibilities

Install, configure, and maintain HP-UX and Linux systems (RHEL preferred)
Build and configure servers, including hardware, services, directories, and system settings
Apply OS patches, firmware updates, and security fixes
Optimize resources and perform kernel tuning based on utilization
Monitor system performance, troubleshoot issues, and optimize stability
Perform routine maintenance during defined maintenance windows
Analyze logs and resolve system issues to minimize downtime
Manage users, groups, and system access controls
Develop and maintain shell scripts, cron jobs, and automation tasks
Produce performance and capacity planning reports
Maintain and improve system security posture
Support and maintain file systems, storage connectivity, and networking (NFS, SMB)
Contribute to infrastructure modernization initiatives; HP-UX to RHEL modernization
Monitor system health and proactively address issues, escalate to management when needed
Document system configurations, procedures, and runbooks
Support incident response and root cause analysis
Participate in on-call rotation and after-hours support
Participate in technical projects from planning through execution
Test and implement new technologies and operational processes
Occasional travel to data centers for onsite support; Cleveland & Akron
Support virtualization and storage platforms (VMware, Pure Storage); RHEL VMs
Assists with system upgrades, patching, etc. during monthly maintenance windows