Ion
Ion5mo ago

Senior Linux Systems Administrator - Datacenter Infrastructure

United StatesBellflowerFull-timesenior
EngineeringDevOps & InfrastructureLinux Systems Administrator
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Quick Summary

Overview

The Role: ION Markets is seeking an accomplished and driven Senior Linux Systems Administrator to join our Datacenter Systems Administrative Team. Based in our Somerset, NJ datacenter,

Technical Tools
EngineeringDevOps & InfrastructureLinux Systems Administrator
The Role:

ION Markets is seeking an accomplished and driven Senior Linux Systems Administrator to join our Datacenter Systems Administrative Team. Based in our Somerset, NJ datacenter, this role offers a compelling opportunity to contribute to mission-critical infrastructure across North and South America.
Our team oversees 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. We are embarking on transformative infrastructure initiatives that demand deep technical expertise, strategic thinking, and a passion for operational excellence.
  • Lead advanced administration, configuration, and performance optimization of Red Hat Enterprise Linux (RHEL) systems.
  • Architect 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.
  • Minimum 10 years of hands-on experience in enterprise-level Linux system administration and technical operations; prior experience in financial services is highly advantageous.
  • 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.
  • Solid understanding of networking fundamentals, including VLANs, trunking, routing, multicast, and NAT.
  • Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE) certification preferred.
  • Exceptional communication and collaboration skills across cross-functional teams and remote support personnel.
  • Strategic problem-solving acumen with a focus on reliability, scalability, and performance in high-availability environments.
  • Ability to lead and mentor junior engineers, fostering a culture of continuous improvement and technical excellence.

    • Listing Details

    Posted
    November 12, 2025
    First seen
    March 25, 2026
    Last seen
    April 12, 2026

    Posting Health

    Days active
    17
    Repost count
    0
    Trust Level
    39%
    Scored at
    April 12, 2026

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    Ion
    Ion
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    Employees
    5
    Founded
    2025
    Domain
    ionconsumables.com
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