Linux System Administrator

Elenchus Technologies; Annapolis (MD); On-site; USD 80,000 - 120,000; Full time

Job summary

Elenchus Technologies seeks a skilled Linux System Administrator to join the IT infrastructure team. You will manage enterprise Linux environments, storage, backup, and security, including IBM Enterprise Storage, Veritas NetBackup, and Nessus-based vulnerability remediation.

The role requires hands-on Linux administration (RHEL/CentOS), patching strategies, and strong scripting skills, with attention to system hardening and NSF frameworks. Suitable for a security‑minded professional.

Qualifications

• Bachelor’s degree in Computer Science, IT, or related field (or equivalent).
• 3+ years of hands-on Linux system administration experience (RHEL/CentOS).
• Experience with IBM Enterprise Storage systems and Veritas NetBackup.
• Experience with Nessus vulnerability scanning and remediation workflows.
• Scripting skills in Bash or Python; strong patching and package management with YUM.
• Knowledge of Linux security, hardening, and compliance practices.

Responsibilities

• Administer, maintain, and optimize Linux-based systems in production.
• Manage and support IBM Enterprise Storage for high availability and performance.
• Configure and troubleshoot Veritas NetBackup for backup/recovery operations.
• Perform system patching and package management using YUM.
• Remediate vulnerability findings from Nessus and enforce security standards.
• Maintain STE/STIN processes and NSF-related security configurations.
• Collaborate with cross-functional teams for upgrades, audits, and incidents.
• Document system configurations, procedures, and compliance requirements.

Skills

Linux Administration

Storage & Backup Management

Security & Compliance

Scripting (Bash, Python)

Troubleshooting & Root Cause Analysis

Automation & Orchestration

Education

Bachelor’s degree in CS/IT or equivalent

Tools

IBM Enterprise Storage

Veritas NetBackup

Nessus

YUM

NSF/STE/STIN security frameworks

Job description

Requirements "Description: Position Overview: We are seeking a skilled and detail-oriented Linux System Administrator to join our IT infrastructure team. The ideal candidate will have strong experience managing enterprise Linux environments and supporting storage, backup, security, and patching systems. This role requires hands‑on expertise with IBM Enterprise Storage, Veritas NetBackup, and vulnerability management tools, along with a solid understanding of system hardening and package management. Key Responsibilities: Administer, maintain, and optimize Linux-based systems in a production environment Manage and support IBM Enterprise Storage solutions, ensuring high availability and performance Configure, monitor, and troubleshoot Veritas NetBackup for enterprise backup and recovery operations Perform system patching and package management using YUM repositories Execute and remediate vulnerability scans using Nessus, ensuring compliance with security standards Support and maintain STE/STIN processes and environments (as applicable to organizational standards) Implement and maintain system security configurations, including NSF frameworks/policies Monitor system performance, troubleshoot issues, and implement proactive improvements Collaborate with cross-functional teams for infrastructure upgrades, audits, and incident response Maintain documentation for system configurations, procedures, and compliance requirements Required Qualifications: Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent experience) 3+ years of hands‑on Linux system administration experience (RHEL, CentOS, or similar) Experience with IBM Enterprise Storage systems Strong knowledge of Veritas NetBackup (NetBackup Administration) Experience with Nessus vulnerability scanning and remediation workflows Proficiency with YUM package management and patching strategies Familiarity with STE/STIN processes and NSF‑related security frameworks Solid understanding of Linux security, system hardening, and compliance practices Strong troubleshooting and scripting skills (Bash, Python, or similar) Preferred Qualifications: Red Hat Certified System Administrator (RHCSA) or equivalent certification Experience in enterprise environments with high availability and disaster recovery requirements Familiarity with automation tools (Ansible, Puppet, or similar) Exposure to cloud or hybrid infrastructure environments Key Skills: Linux Administration Storage & Backup Management Security & Compliance System Monitoring & Performance Tuning Troubleshooting & Root Cause Analysis Automation & Scripting Qualifications: Managing/Senior Principal Consultant designs and implements individual components of the Oracle products based on area of expertise. Analyzes detailed requirements and develops detailed design for a specific Oracle product or technology. Provides implementation services for a specific product to include extensions and additional configurations necessary to implement customer unique business processes and workflows. Performs routine health checks and optimizations of system performance, availability, access controls and security. Performs system optimization, performance tuning and assists in capacity planning. Performs proactive analysis of potential issues, risks and roadblocks during system implementation and operations.