Senior Linux Systems Engineer: Storage & Security

CDIT; Maryland; On-site; Full time

Job description

Annapolis Junction, United States | Posted on 05/08/2026

We are seeking a skilled and detail-orientedLinux System Administratorto 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 supportIBM Enterprise Storagesolutions, ensuring high availability and performance

Configure, monitor, and troubleshootVeritas NetBackupfor enterprise backup and recovery operations

Perform system patching and package management usingYUMrepositories

Execute and remediate vulnerability scans usingNessus, ensuring compliance with security standards

Support and maintainSTE/STINprocesses and environments (as applicable to organizational standards)

Implement and maintain system security configurations, includingNSFframeworks/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 withIBM Enterprise Storage systems

Strong knowledge ofVeritas NetBackup (NetBackup Administration)

Experience withNessus vulnerability scanning and remediation workflows

Proficiency withYUM package managementand patching strategies

Familiarity withSTE/STINprocesses andNSF-related security frameworks

Solid understanding of Linux security, system hardening, and compliance practices

Strong troubleshooting and scripting skills (Bash, Python, or similar)

Top Secret Clearance with LS Poly

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:

Storage & Backup Management

Security & Compliance

System Monitoring & Performance Tuning

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.