Senior Linux Systems Administrator — AWS & Security

Leidos LLC; Columbia (MD); On-site; USD 92,000 - 167,000; Full time

Benefits offered by this job

Paid time off

11 holidays

401K with company match

Flexible schedules

Discounted stock purchase

Technical upskilling

Parental leave

Sign-on bonus

Job summary

Leidos is seeking a Systems Administrator to support Linux-based development, test, and production environments. The role emphasizes hands-on administration, automation, security hardening, and change management.

You will manage RHEL/Linux systems, implement configuration management with Ansible, Bash, and Python, and collaborate with SAs, DBAs, SWEs, and testers. A TS/SCI with polygraph clearance is required, with a $10k sign-on bonus and competitive benefits.

Qualifications

• Bachelor’s degree plus 8 years of related experience; higher degrees may substitute.

Responsibilities

• Administer, configure, secure, and troubleshoot Linux systems across Development, Test, and Production environments.
• Lead root-cause analysis across OS, applications, storage, authentication, performance, and network.
• Manage Linux system lifecycle: accounts, permissions, patching, services, upgrades, and maintenance.
• Implement security controls, baselines, vulnerability remediation, and compliance requirements.
• Develop automation and configuration-management using Ansible, Bash, Python, or similar.
• Collaborate with SAs, DBAs, SWEs, SEs, testers to create sustainable solutions.
• Maintain technical documentation, SOPs, runbooks, and participate in on-call rotation.

Skills

Linux administration

RHEL

Automation with Ansible

Bash scripting

Python scripting

AWS services

Security clearance TS/SCI with poly

System monitoring

Education

Bachelor’s degree in a technical discipline

Tools

Ansible

Bash

Python

AWS

Kubernetes

Jira

Confluence

CloudFormation

Splunk

Job description

Leidos is seeking a Systems Administrator to support Linux-based development, test, and production environments. The role emphasizes hands-on administration, automation, security hardening, and change management.

You will manage RHEL/Linux systems, implement configuration management with Ansible, Bash, and Python, and collaborate with SAs, DBAs, SWEs, and testers. A TS/SCI with polygraph clearance is required, with a $10k sign-on bonus and competitive benefits.