Ignite IT - Innovation & Technology

Senior Linux Administrator

Ignite IT - Innovation & Technology

full-time

Posted on:

Location Type: Hybrid

Location: Suitland-Silver Hill • Maryland • United States

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Job Level

Senior

Tech Stack

AnsibleDNSLinuxNFSPythonTCP/IPUnix

About the role

  • Manage the complete lifecycle (provisioning, patching, upgrading, decommissioning) of all RHEL servers supporting the enterprise.
  • Develop and maintain automation using Ansible, Bash, and/or Python to ensure consistent and rapid deployment of enterprise-wide changes.
  • Deploy and maintain servers in clustered environments.
  • Proactively monitor and tune the performance of the RHEL environment to support high-throughput, low-latency data processing and ingestion.
  • Perform kernel-level tuning (sysctl), I/O optimization, and network performance analysis.
  • Troubleshoot and resolve complex performance bottlenecks related to CPU, memory, storage, and networking.
  • Serve as an escalation point for both the Operations Center and other Unix team members.
  • Triage and resolve infrastructure issues, providing root cause analysis.
  • Work closely with application, storage, and network teams to resolve cross-domain service issues.
  • Work with the Backup team to ensure consistent backups of all Linux servers.
  • Implement and maintain system security in accordance with federal standards (NIST, FISMA, and DISA STIGs).
  • Manage user access and system entitlements, including SSSD/LDAP/Active Directory integration.
  • Troubleshoot and resolve SELinux problems.
  • Participate in security audits and provide remediation for findings.
  • Participate in an on-call rotation for 24/7/365 operational support.

Requirements

  • Must be a U.S. Citizen.
  • Must be able to pass a background investigation to obtain and maintain a Public Trust security clearance.
  • Bachelor's degree in Computer Science, Information Technology, or a related field (or 7+ additional years of equivalent experience).
  • 10+ years of dedicated experience as a Linux/RHEL Engineer or Administrator.
  • Strong experience in Linux performance tuning, kernel parameter analysis (sysctl), and troubleshooting with tools like vmstat, iostat, sar, and perf.
  • Expert-level scripting with Bash and strong proficiency with Ansible for configuration management and automation.
  • In-depth knowledge of Linux storage (LVM, XFS, NFS, CLVM) and networking (TCP/IP, DNS, bonding).
  • Expertise across RHEL 7, 8, and 9 environments.
Benefits
  • 401(k) with matching and 100% Vested
  • Health Insurance - 3 plans to select from
  • Dental insurance
  • Vision Insurance
  • Health savings account
  • Life insurance
  • Short Term Disability
  • Long Term Disability
  • AD&D
  • Paid time off
  • Professional development assistance
  • Training
  • Tuition reimbursement
  • Flexible schedule
  • Flexible spending account
  • Referral program
  • Paid Legal Plan
  • and more....
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
LinuxRHELAnsibleBashPythonperformance tuningkernel parameter analysistroubleshootingstorage managementnetworking
Soft Skills
problem-solvingcommunicationcollaborationescalation managementroot cause analysisoperational support