Senior Linux Systems Administrator
Leidos
full-time
Posted on:
Location Type: Office
Location: Camp Springs • Maryland, Virginia • 🇺🇸 United States
Visit company websiteSalary
💰 $116,350 - $210,325 per year
Job Level
Senior
Tech Stack
AWSAzureLinuxPythonUnixVoIP
About the role
- Full lifecycle management of our Red Hat systems, including installation, configuration, patching, and upgrades, with a strong emphasis on utilizing Red Hat Satellite to streamline these processes.
- Participate in and lead the upgrade of our existing Red Hat Enterprise Linux 8 systems to version 9, ensuring minimal disruption and adherence to best practices.
- Ongoing maintenance and health of our VoIP DHCP services and our Red Hat Identity Management (IdM) system, including user and group management, access controls, and stability and security.
- Implement and maintain robust system hardening techniques, requiring hands-on experience with security compliance tools such as Evaluate Stig and OpenSCAP to audit, remediate, and ensure adherence to security benchmarks.
- Troubleshoot complex system issues, perform root cause analysis, and implement effective solutions, often leveraging scripting skills in Bash and Python.
Requirements
- Bachelor’s Degree with 12+ years’ experience as a Unix System Administrator – Operational experience with RHEL8 and RHEL9.
- Must have Active Secret security clearance.
- Requires a current 8140 IAT Level II (Intermediate or Advanced) certificate (CompTIA Security+ or Systems Security Certified Practitioner (SSCP)).
- 3+ years deploying Unix in secured environments, i.e., DISA.
- 3+ years using, updating and maintaining Red Hat Satellite.
- Documenting system processes for Unix environments.
- HW experience: Knowledge of Dell Servers, iDRAC, AWS and Azure.
- SW experience: Operating Systems: RHEL8 and RHEL 9.
- Experience with running Red Hat systems with SELINUX in "enforcing" mode.
- Experience with configuring PAM (Pluggable Authentication Modules) on RHEL to enable 2-factor authentication via RSA and/or Active Directory.
- DISA environment hardening experience.
Benefits
- Health and Wellness programs
- Income Protection
- Paid Leave
- Retirement
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard skills
Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9BashPythonsystem hardeningsecurity compliance toolsEvaluate StigOpenSCAPPAM2-factor authentication
Soft skills
troubleshootingroot cause analysisdocumentationleadershipcommunication
Certifications
Bachelor's DegreeActive Secret security clearance8140 IAT Level IICompTIA Security+Systems Security Certified Practitioner (SSCP)