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Senior Linux Systems Administrator – Datacenter Infrastructure

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ClearBridge Technology Group

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Location:
United States , Somerset

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Contract Type:
Contract work

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Salary:

49.50 - 81.25 USD / Hour

Job Description:

The consultant will oversee a robust estate of over 2,500 Red Hat Enterprise Linux (RHEL) systems deployed on HPE ProLiant hardware, supporting high-performance environments in multiple datacenters. The client is embarking on transformative infrastructure initiatives.

Job Responsibility:

  • Lead advanced administration, configuration, and performance optimization of Red Hat Enterprise Linux (RHEL) systems
  • Design and manage RHEL KVM virtualization environments, including provisioning, troubleshooting boot issues, and fine-tuning for optimal performance
  • Oversee lifecycle management of HPE ProLiant hardware, including upgrade analysis, firmware upgrades, component replacements, and remote diagnostics via iLO
  • Design and execute robust processes for infrastructure patching, reboot orchestration, and content lifecycle management
  • Administer and enhance security posture through deployment and maintenance of EDR and SIEM agents, ensuring compliance with CVE remediation SLAs
  • Analyze and resolve kernel-level system bottlenecks and network latency, delivering actionable performance tuning strategies
  • Manage HPE storage platforms (Primera, Alletra), including SAN zoning, volume provisioning, LVM configuration, and fiber channel switch operations
  • Maintain critical datacenter services: NTP/Chrony, Elastic Stack, Puppet, Cobbler, Rundeck, Squid Proxy, DNS, and Postfix
  • Implement proactive monitoring using tools such as Nagios/Naemon, Prometheus, and PRTG, ensuring high availability and rapid incident response
  • Develop and maintain automation frameworks using Ansible, Python, Perl, and shell scripting to streamline operational workflows
  • Respond to service requests and incident tickets with precision, adhering to rigorous change management and production protocols
  • Provide detailed procedural documentation and remote guidance for external datacenter teams across geographically distributed locations

Requirements:

  • Minimum 10 years of hands-on experience in enterprise-level Linux system administration and technical operations
  • Prior experience in financial services
  • Proven expertise in RHEL 7/8, including deep familiarity with KVM virtualization and system internals
  • Advanced knowledge of HPE ProLiant server architecture, diagnostics, and lifecycle management
  • Demonstrated proficiency in security operations, including EDR/SIEM agent management and vulnerability remediation
  • Experience with HPE SAN technologies, including fabric zoning, Primera/Alletra storage systems, and fiber channel networking
  • Working knowledge of Puppet and Cobbler for configuration and provisioning automation
  • Proficient in scripting languages: Python, Perl, and Bash
  • capable of developing scalable automation solutions
What we offer:
  • Excellent benefits and compensation packages
  • Additional compensation provided for bi-monthly Saturday production rollouts

Additional Information:

Job Posted:
December 07, 2025

Employment Type:
Fulltime
Work Type:
Hybrid work
Job Link Share:

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