System Maintenance Technician II (Linux/Unix)

Overview TISTA Science and Technology is seeking a System Maintenance Technician II  to join our growing team. At TISTA, you’ll do meaningful, mission ‑ driven work that improves lives alongside teammates you trust and leaders who are transparent and supportive. We invest in your learning and internal mobility so you can build a career that keeps advancing. We’re proud to serve and hire Veterans, and we put people first in everything we do.

TISTA associates enjoy above Industry Healthcare Benefits, Remote Working Options, Paid Time Off, Training/Certification opportunities, Healthcare Savings Account & Flexible Savings Account, Paid Life Insurance, Short-term & Long-term Disability, 401K Match, Professional development reimbursement, Employee Assistance Program, Paid Holidays, Military Leave, and much more! Responsibilities SolarWinds, ScienceLogic, Splunk, SNMP, or equivalent monitoring training – Desired for interpreting infrastructure alerts, system-health conditions, and performance anomalies.\ Data-center operations and server-room safety training – Desired for rack-and-stack activities, power and cabling work, physical inspections, equipment handling, and controlled data-center operations.

Hardware break/fix and field-replaceable-unit training – Desired hands-on experience replacing memory, CPUs, disk drives, motherboards, expansion cards, and power supplies, followed by successful server restart and health validation. Linux/Unix server-maintenance command proficiency – Required practical skill in checking filesystem capacity, identifying large/old/duplicate files, calculating directory sizes, and performing other maintenance diagnostics.

Monitoring and maintenance tool familiarity – Desired experience with tools identified in the maintenance requirements, including BigFix, SNMP, GitHub, SolarWinds, Splunk, QRadar, EnCase, ScienceLogic, Puppet, IPMI, iLO, and iDRAC. Preventive and emergent maintenance planning – Ability to schedule routine maintenance without disrupting normal workflow, recognize emergent maintenance needs, select an appropriate response, and maintain accurate maintenance logs.

Vendor maintenance coordination training/experience – Desired experience coordinating field-engineer visits, validating systems after warranty maintenance, and updating associated tickets. Qualifications RAID and enterprise storage training – Desired for disk health monitoring, RAID troubleshooting, disk replacement, SMART status validation, and storage integrity. Red Hat Satellite training – Desired for Linux infrastructure inventory, patch-level verification, and system lifecycle support.

BigFix training – Desired for patch-status validation, endpoint compliance, and infrastructure maintenance activities. Ansible and Puppet familiarity/training – Desired for configuration-management awareness, automation support, and validation of server-management agents. ServiceNow and CMDB training – Desired for incident, maintenance, asset, configuration, and work-record documentation. Desired Qualifications: CompTIA Server+ – Desired for enterprise server hardware installation, troubleshooting, maintenance, storage, and lifecycle support.

CompTIA A+ – Desired for foundational hardware diagnostics, component replacement, peripheral support, and troubleshooting. CompTIA Linux+ or equivalent Linux administration training – Desired for Linux command-line maintenance, filesystem analysis, storage utilization, and basic OS troubleshooting. Red Hat Certified System Administrator (RHCSA) or Red Hat Linux administration training – Desired for RHEL system maintenance, storage, filesystems, services, and troubleshooting.

Oracle Solaris Administration training or certification – Desired for Solaris server maintenance, zpools, and Unix infrastructure support. Dell, HPE, Oracle, or equivalent enterprise server hardware training – Desired for hardware diagnostics, firmware maintenance, component replacement, and vendor-specific server management. iDR