Quantori

UNIX/Linux Support Engineer (Onsite) L2/L3

L2/L3 UNIX/Linux Support Engineer at Quantori, Connecticut. Monitor infrastructure via ServiceNow/TrueSight, resolve system issues, manage VMware/GPFS, execute Ansible/Puppet workflows. RHCSA + ITIL required. Competitive pay, flexible work, healthcare, professional development.

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Consulting
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Mid-Level
ServiceNow Role Type:
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System Administrator
ServiceNow Modules:
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IT Service Management
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Incident Management
ServiceNow Certifications (nice to have):
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Certified System Administrator

Job description

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Posted on:
 
October 28, 2025

We are looking for an on-site L2/L3 UNIX/Linux Support Engineer to provide operational support for the enterprise’s UNIX/Linux infrastructure.

Requirements

  • Monitor infrastructure alerts and tickets through ServiceNow and TrueSight.
  • Diagnose and resolve filesystem, CPU, memory, and agent issues across Linux and Unix platforms.
  • Perform standard operational changes, including agent reinstalls, disk extensions, and configuration updates.
  • Support VMware ESX hosts (Dell/Cisco UCS), perform VM health checks, validate resource and datastore usage.
  • Monitor and troubleshoot GPFS (IBM Spectrum Scale) and LSF workload schedulers.
  • Provide basic OpenShift and RStudio support for system availability.
  • Execute and enhance Ansible Tower and Red Hat Satellite workflows for patching and configuration management.
  • Maintain and improve Puppet modules and shell scripts for operational efficiency.
  • Ensure alerts are validated; tickets are updated and resolved in accordance with SLAs.
  • Perform hardware interventions, including disk replacements, NIC reseating, and console access.
  • Coordinate hardware replacements with Dell, IBM, Cisco, and HP vendors.
  • Validate data center connectivity, participate in DR testing, and ensure accurate asset documentation.
  • Participate in the on-call rotation approximately once per month, providing after-hours support for critical production incidents.
  • Serve as an escalation point for critical system alerts during off-hours to ensure service continuity.
  • Coordinate with data center or vendor teams for emergency actions when needed.

Benefits

  • Competitive compensation
  • Remote or office work
  • Flexible working hours
  • Healthcare benefits: medical insurance and paid sick leave
  • Continuous education, mentoring, and professional development programs
  • A team with an excellent tech expertise

Requirements Summary

3–6 years of experience in enterprise Linux/Unix administration and support, Red Hat Certified System Administrator (RHCSA) or equivalent certification, ITIL v4 Foundation certification