Sr. RHEL Systems Administrator

Reston, VA

Sr. RHEL Systems Administrator

Direct Hire – USC and GC Holders can only be considered at this time

Reston, VA - Remote now but will sit onsite in Reston post Covid


Tier4 Group is hiring a Senior RHEL Systems Administrator for our Financial client in the Reston, VA area! The Senior RHEL Systems Administrator is accountable for the installation, support, maintenance, configuration and troubleshooting of RHEL-based infrastructure comprised of virtual RedHat Enterprise Linux servers, ESXi hosts, Dell/EMC SAN storage, Avamar & Data Domain data backup and recovery systems, RHEL Satellite servers, EMC RecoverPoint for VM replication systems, Ansible/Tower Automation & Orchestration systems, and other associated systems administration hardware and software.



·         Bachelor of Science from an accredited institution, IT- related field preferred

·         Certification in RHEL OS Vendor systems administration, engineering, or architecture - preferred

·         Demonstrated examples of leadership, initiative, and creativity

·         Minimum 5 years’ experience practicing Change, Problem, and Incident management processes in an ITIL fashion in an enterprise environment

·         Minimum 7 years' RHEL experience with RedHat Enterprise Linux

·         Minimum 5 years' scripting experience preferably shell scripting or PERL.

·         Minimum 3 years’ hands-on experience with VMware

·         Minimum 1 year of hands-on experience with Ansible and Satellite server

·         Hardening systems, Infrastructure Operations is a big plus

·         Experience with Dell EMC storage required (Extreme IO and Unity also are pluses)

·         Monitoring tools experience with Splunk, WhatUp, Uptime, or SolarWinds

·         Comprehensive understanding of Docker, Kubernetes, OpenShift, CNI

·         Working knowledge of backup infrastructure and techniques, SAN concepts, Apache HTTP server (including Stronghold), and Sybase Adaptive Server

·         Comprehensive understanding of the terminology, principles and application of fault tolerance, high availability, and disaster recovery preparedness. Managing DR designs would be a plus

·         Exposure to other application server technology such as ColdFusion Server, Sybase, Business Objects, WebLogic, JBOSS, and Tomcat is a plus

·         Experience with EMC XtremIO, Unity, Avamar, RecoverPoint a plus



·         Install and configure computer and storage hardware, firmware, operating systems, software, patches, updates, and the associated cabling and peripherals necessary for their function

·         Maintain monitoring and trending of all RHEL system performance, capacity, availability, and security metrics

·         Install, configure, maintain, monitor, and validate the RHEL system backup software and processes

·         Configure, maintain and monitor RHEL system identification, authentication, access, printing, and e-mail services

·         Support the provisioning and configuration of user accounts, groups, data storage file system hierarchy architecture, permissions, and computing resource allocations

·         Support the creation of program and job startup/shutdown, monitoring, reporting and scheduled execution scripts, cronjobs and atjobs

·         Support the installation and configuration of operating software and custom applications, including RPM packaging and containerization

·         Create standardized KPI reports for RHEL system monitoring metrics to be delivered regularly to management

·         Create and maintain documentation, procedures, and standards for RHEL systems installation, configuration, and operation

·         Assist Business Continuity Plan stakeholders with documentation, testing, and implementation of disaster recovery and alternate site failover mechanisms

·         Ensure the successful execution of the RHEL system support role in the company’s Network Operations Center

·         Orchestrate and participate in after-hours and weekend change management activities

·         Ensure that configuration and processes for RHEL systems are in alignment with the company’s policies and procedures

·         Utilize ITIL framework workflows and task tracking tools

·         Support the company’s diversity and inclusion strategy by following policies and procedures that ensure opportunities for employees and diverse business partners

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Contact Info

2600 Abbey Court
Alpharetta, Georgia 30004