The Role
Administer and optimize enterprise Linux systems, manage IBM storage and Veritas NetBackup backups, perform YUM-based patching, run and remediate Nessus vulnerability scans, implement security/hardening (NSF), support STE/STIN processes, monitor performance, troubleshoot, script (Bash/Python), document systems, and collaborate on upgrades/audits. Requires Top Secret clearance with LS Poly.
Summary Generated by Built In
CDIT is a technology solutions company supporting government and national security customers with secure, mission-focused IT solutions. We partner with highly skilled technical professionals to support complex environments where reliability, security, and operational excellence are critical. Our team values technical expertise, collaboration, and a commitment to supporting the missions of our customers.
CDIT is seeking an experienced Linux System Administrator to support a secure, mission-critical enterprise environment. This role will be responsible for the administration, maintenance, performance, and security of Linux-based infrastructure, with a focus on IBM Enterprise Storage, Veritas NetBackup, vulnerability management, system patching, and security compliance. The ideal candidate will bring strong hands-on Linux administration experience with the ability to troubleshoot complex infrastructure issues, optimize system performance, and support highly available environments.
Responsibilities
CDIT is seeking an experienced Linux System Administrator to support a secure, mission-critical enterprise environment. This role will be responsible for the administration, maintenance, performance, and security of Linux-based infrastructure, with a focus on IBM Enterprise Storage, Veritas NetBackup, vulnerability management, system patching, and security compliance. The ideal candidate will bring strong hands-on Linux administration experience with the ability to troubleshoot complex infrastructure issues, optimize system performance, and support highly available environments.
Responsibilities
- Administer, maintain, and optimize Linux-based systems in a production environment.
- Manage and support IBM Enterprise Storage solutions, ensuring 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 applicable security standards.
- Support and maintain STE/STIN processes and environments.
- Implement and maintain system security configurations, including applicable NSF frameworks and policies.
- Perform routine system health checks and optimize performance, availability, access controls, and security.
- Support system optimization, performance tuning, and capacity planning.
- Proactively identify and troubleshoot potential system issues, risks, and operational roadblocks.
- Collaborate with infrastructure, security, and technical teams on system upgrades, audits, incident response, and operational requirements.
- Maintain system configurations, procedures, and compliance documentation.
RequirementsRequired Skills & Qualifications
- 3+ years of hands-on Linux System Administration experience with RHEL, CentOS, or similar.
- Experience with IBM Enterprise Storage systems.
- Strong knowledge of Veritas NetBackup administration.
- Experience with Nessus vulnerability scanning and remediation.
- Proficiency with YUM package management and system patching.
- Familiarity with STE/STIN processes and NSF-related security frameworks.
- Strong understanding of Linux security, system hardening, and compliance.
- Strong troubleshooting and scripting skills using Bash, Python, or similar.
- Active Top Secret clearance with Lifestyle Polygraph (LS Poly).
- Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent professional experience.
- Red Hat Certified System Administrator (RHCSA) or equivalent Linux certification.
- Experience supporting enterprise environments with high availability and disaster recovery requirements.
- Experience with automation tools such as Ansible or Puppet.
- Exposure to cloud or hybrid infrastructure environments.
- Experience with system performance tuning and capacity planning.
- Experience supporting secure or classified enterprise environments.
Skills Required
- Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent experience)
- 3+ years 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
- Familiarity with NSF-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
- 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
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The Company
What We Do
CDIT, headquartered in Slidell, LA, has provided technical services for both commercial and Federal customers for the past 18 years. We deliver high-value services with our Agile integrated approach, consisting of Lean-Agile frameworks, process maturity, best practices combined with information security and quality management standards. This integrated approach is paired with the principles of accountability, collaboration, and delivery established our core CDIT execution model. This model allows us to successfully deliver and perform on small to large-scale programs remotely and on-site. CMMI III DEV | ISO 9001:2015 | ISO 27001:2015
