Systems Administrator 3 (On-Call) - Linux/Bash/Python/STE/STN/Docker/Kubernetes
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Before you apply
LocationID, Annapolis Junction, MD
Typefull-time
SenioritySenior
Experience15+ yrs
DepartmentSystems Administrator
Company size201–500 people
PostedOct 5, 2026 · 1mo ago
Verified live3d ago
At a glanceSummarised by Seekless from the posting.
Must currently hold a Top Secret/SCI U.S. Government security clearance with a favorable Polygraph, therefore all candidates must be a U.S. citizen
Fifteen (15) years' experience as a Systems Administrator in programs and contracts of similar scope, type, and complexity
Bachelor's degree in a technical discipline from an accredited college or university
Five (5) years of additional Systems Administration experience may be substituted for a bachelor's degree
A Security+ Certification is required
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 SaltStack 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
Skills
Linux
Bash
Python
COTS
GOTS
FOSS
Red Hat Satellite
Splunk
VMware ESXi
SaltStack
Ansible
HPE One View
Nagios
Docker
Kubernetes
Weka
CEPH
GPFS
HDFS
Jira
Confluence
Benefits
Health insurance
Dental insurance
Vision insurance
Life insurance
Short term disability
Long term disability
401(k)
Paid time off
HSA contribution
Build to something to be proud of.
Captivation has built a reputation on providing customers exactly what is needed in a timely manner. Our team of engineers take pride in what they develop and constantly innovate to provide the best solution. Captivation is looking for software developers who can get stuff done while making a difference in support of the mission to protect our country.
Description
Responsibilities
Captivation Software is looking for a senior level systems administrator who shall be responsible for providing support for a large-scale Linux system including installation of COTS/GOTS/FOSS software, day-to-day operations, monitoring, and problem resolution for all the compute, network, memory, and storage system components. In addition, the System Administrator shall maintain the system security integrity and configure network components, along with implementing operating systems enhancements to improve reliability and performance.
Requirements
Security Clearance:
•
Must currently hold a Top Secret/SCI U.S. Government security clearance with a favorable Polygraph, therefore all candidates must be a U.S. citizen
Minimum Qualifications:
•
Fifteen (15) years’ experience as a Systems Administrator in programs and contracts of similar scope, type, and complexity is required
•
Bachelor’s degree in a technical discipline from an accredited college or university is required
•
Five (5) years of additional Systems Administration experience may be substituted for a bachelor’s degree.
•
A Security+ Certification is required
Required Skills:
•
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 SaltStack 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
Desired Skills:
•
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
This position is open for direct hires only. We will not consider candidates from third party staffing/recruiting firms.
Benefits
•
Annual Salary: $130,000 - $270,000 (Depends on the Years of Experience)
•
Up to 20% 401k contribution (No Matching Required and Vested from Day 1)
•
Above Market Hourly Rates
•
$3,600 HSA Contribution
•
6 Weeks Paid Time Off
•
Company Paid Employee Medical/Dental/Vision Insurance/Life Insurance/Short-Term & Long-Term Disability/AD&D
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