More jobs:
System Administrator III
Job in
Fort Meade, Anne Arundel County, Maryland, USA
Listed on 2026-10-08
Listing for:
Reflexive Concepts, LLC
Full Time
position Listed on 2026-10-08
Job specializations:
-
IT/Tech
Systems Administrator, Unix/Linux, Cloud Computing: Infrastructure & Operations, Cybersecurity
Job Description & How to Apply Below
Reflexive Concepts is looking for a System Administrator III to sustain a large-scale Linux computing environment supporting a critical mission. In this role you will install and maintain COTS/GOTS/FOSS software, handle day-to-day operations, monitoring, and problem resolution across the compute, network, memory, and storage components of the system. You will also maintain the security integrity of the environment, configure network components, and implement operating system enhancements that improve reliability and performance.
Qualifications:- Active TS/SCI + FS Polygraph
- Fifteen (15) years of experience as a Systems Administrator in programs and contracts of similar scope, type, and complexity, plus a Bachelor's degree in a technical discipline from an accredited college or university OR
- Twenty (20) years of experience as a Systems Administrator in programs and contracts of similar scope, type, and complexity, in lieu of a Bachelor's degree (five (5) years of additional Systems Administration experience may be substituted for the degree).
- Security+ certification
Experience:
- Experience using the Linux CLI
- Experience developing scripts using Bash/Python
- Experience in performing System Administration including installation, configuration, and support of COTS/GOTS/FOSS software in a large-scale Linux cluster environment
- General technical knowledge regarding compute, network, memory, and storage system components
- Experience with Red Hat Satellite systems management solution
- Familiarity using Splunk for ingesting, indexing, searching, monitoring, and analyzing big data
- Experience with the sustainment and support of large Linux clusters including day-to-day operations, monitoring and problem resolution
- Experience configuring and sustaining VMware ESXi/Virtualization environments
- Experience with IaC (Infrastructure as Code) principles and automation tools such as Salt Stack and Ansible
- Experience with corporate STE/STN security compliance policies and procedures
- Experience using system monitoring tools such as HPE One View and Nagios
- Experience with containerization technologies such as Docker
- Experience with container orchestration technologies such as Kubernetes
- Experience with distributed files systems such as Weka, CEPH, GPFS, and HDFS
- Experience with the Atlassian Suite of Tools such as Jira and Confluence
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