Red Hat Certified System Administrator (RHCSA) or equivalent Linux certification. * Experience supporting enterprise environments with high availability and disaster recovery requirements.
Red Hat Certified System Administrator (RHCSA) or equivalent Linux certification. * Experience supporting enterprise environments with high availability and disaster recovery requirements.
Linux Admin/Test Engineer
Hanover, MD ยท On-site
CompTIA Linux + Certification * 3+ years of executing command line Linux operations * 2+ years of experience with government contracts * Network Cisco configuration experience * Windows Active ...
Linux Admin/Test Engineer
Hanover, MD ยท On-site
CompTIA Linux + Certification * 3+ years of executing command line Linux operations * 2+ years of experience with government contracts * Network Cisco configuration experience * Windows Active ...
Linux Systems Administrator
Annapolis Junction, MD ยท On-site
$86.54 - $110.58/hr
DoD 8570-Compliant IAT Level II or III Certification, such as Security+ Certification Nice If You Have: * Experience creating Linux-based solutions for customer requirements * Experience using health ...
Linux Systems Administrator
Annapolis Junction, MD ยท On-site
$86.54 - $110.58/hr
DoD 8570-Compliant IAT Level II or III Certification, such as Security+ Certification Nice If You Have: * Experience creating Linux-based solutions for customer requirements * Experience using health ...
Linux Systems Administrator
$86.54 - $110.58/hr
DoD 8570-Compliant IAT Level II or III Certification, such as Security+ Certification Nice If You Have: * Experience creating Linux-based solutions for customer requirements * Experience using health ...
Linux Systems Administrator
$86.54 - $110.58/hr
DoD 8570-Compliant IAT Level II or III Certification, such as Security+ Certification Nice If You Have: * Experience creating Linux-based solutions for customer requirements * Experience using health ...
Red Hat Certified Engineer (RHCE) or similar Linux certification. * Familiarity with CDS guard technologies (Radiant Mercury, Data Diode, Garrison, etc.). * Experience with hypervisors and virtual ...
Red Hat Certified Engineer (RHCE) or similar Linux certification. * Familiarity with CDS guard technologies (Radiant Mercury, Data Diode, Garrison, etc.). * Experience with hypervisors and virtual ...
Linux Systems Administrator
Annapolis Junction, MD ยท On-site
$86.54 - $110.58/hr
DoD 8570-Compliant IAT Level II or III Certification, such as Security+ Certification Nice If You Have: * Experience creating Linux-based solutions for customer requirements * Experience using health ...
Linux Systems Administrator
Annapolis Junction, MD ยท On-site
$86.54 - $110.58/hr
DoD 8570-Compliant IAT Level II or III Certification, such as Security+ Certification Nice If You Have: * Experience creating Linux-based solutions for customer requirements * Experience using health ...
Linux Admin/Test Engineer
Hanover, MD ยท On-site
CompTIA Linux + Certification * 3+ years of executing command line Linux operations * 2+ years of experience with government contracts * Network Cisco configuration experience * Windows Active ...
Linux Admin/Test Engineer
Hanover, MD ยท On-site
CompTIA Linux + Certification * 3+ years of executing command line Linux operations * 2+ years of experience with government contracts * Network Cisco configuration experience * Windows Active ...
Red Hat Certified Engineer (RHCE) or similar Linux certification.Familiarity with CDS guard technologies (Radiant Mercury, Data Diode, Garrison, etc.).Experience with hypervisors and virtual ...
Quick apply
Red Hat Certified Engineer (RHCE) or similar Linux certification.Familiarity with CDS guard technologies (Radiant Mercury, Data Diode, Garrison, etc.).Experience with hypervisors and virtual ...
Linux Systems Administrator
Annapolis Junction, MD ยท On-site
$86.54 - $110.58/hr
DoD 8570-Compliant IAT Level II or III Certification, such as Security+ Certification Nice If You Have: * Experience creating Linux-based solutions for customer requirements * Experience using health ...
Linux Systems Administrator
Annapolis Junction, MD ยท On-site
$86.54 - $110.58/hr
DoD 8570-Compliant IAT Level II or III Certification, such as Security+ Certification Nice If You Have: * Experience creating Linux-based solutions for customer requirements * Experience using health ...
Red Hat Certified Engineer (RHCE) or similar Linux certification. * Familiarity with CDS guard technologies (Radiant Mercury, Data Diode, Garrison, etc.). * Experience with hypervisors and virtual ...
Red Hat Certified Engineer (RHCE) or similar Linux certification. * Familiarity with CDS guard technologies (Radiant Mercury, Data Diode, Garrison, etc.). * Experience with hypervisors and virtual ...
CompTIA Linux + Certification * 3+ years of executing command line Linux operations * 2+ years of experience with government contracts * Network Cisco configuration experience * Windows Active ...
CompTIA Linux + Certification * 3+ years of executing command line Linux operations * 2+ years of experience with government contracts * Network Cisco configuration experience * Windows Active ...
Current CompTIA Security+ certification. * Active Top Secret clearance with Full Scope Polygraph ... Linux certification ( RHCSA, RHCE, or equivalent ). * Experience with storage, networking, security ...
Current CompTIA Security+ certification. * Active Top Secret clearance with Full Scope Polygraph ... Linux certification ( RHCSA, RHCE, or equivalent ). * Experience with storage, networking, security ...
Current CompTIA Security+ certification. * Active Top Secret clearance with Full Scope Polygraph ... Linux certification ( RHCSA, RHCE, or equivalent ). * Experience with storage, networking, security ...
Current CompTIA Security+ certification. * Active Top Secret clearance with Full Scope Polygraph ... Linux certification ( RHCSA, RHCE, or equivalent ). * Experience with storage, networking, security ...
Preferred Skills & Qualifications Red Hat Certified System Administrator (RHCSA) or equivalent Linux certification. Experience supporting enterprise environments with high availability and disaster ...
Preferred Skills & Qualifications Red Hat Certified System Administrator (RHCSA) or equivalent Linux certification. Experience supporting enterprise environments with high availability and disaster ...
Linux Systems Administrator with Security Clearance
Annapolis Junction, MD ยท On-site
$86.54 - $110.58/hr
DoD 8570-Compliant IAT Level II or III Certification, such as Security+ Certification Nice If You Have: * Experience creating Linux-based solutions for customer requirements * Experience using health ...
Linux Systems Administrator with Security Clearance
Annapolis Junction, MD ยท On-site
$86.54 - $110.58/hr
DoD 8570-Compliant IAT Level II or III Certification, such as Security+ Certification Nice If You Have: * Experience creating Linux-based solutions for customer requirements * Experience using health ...
Sr. System Administrator/System Engineer - Linux with Security Clearance
Annapolis Junction, MD ยท On-site
Linux certification (RHCSA, RHCE, or equivalent). Experience with storage, networking, security ... compliance, and authentication. Shell and/or Python scripting. Physical server administration.
Sr. System Administrator/System Engineer - Linux with Security Clearance
Annapolis Junction, MD ยท On-site
Linux certification (RHCSA, RHCE, or equivalent). Experience with storage, networking, security ... compliance, and authentication. Shell and/or Python scripting. Physical server administration.
Linux certification (RHCSA, RHCE, or equivalent). Experience with storage, networking, security ... compliance, and authentication. Shell and/or Python scripting. Physical server administration.
Linux certification (RHCSA, RHCE, or equivalent). Experience with storage, networking, security ... compliance, and authentication. Shell and/or Python scripting. Physical server administration.
Linux Engineer
Bethesda, MD ยท On-site
$125K - $155K/yr
Seeking a Linux Systems Administrator to provide day-to-day operations, deployment support, and ... Certifications (DoD 8140 / 8570): Active DoD 8570/8140 IAT Level II certification (e.g., CompTIA ...
Quick apply
Linux Engineer
Bethesda, MD ยท On-site
$125K - $155K/yr
Seeking a Linux Systems Administrator to provide day-to-day operations, deployment support, and ... Certifications (DoD 8140 / 8570): Active DoD 8570/8140 IAT Level II certification (e.g., CompTIA ...
Linux Engineer
Bethesda, MD ยท On-site
$125K - $155K/yr
Seeking a Linux Systems Administrator to provide day-to-day operations, deployment support, and ... Certifications (DoD 8140 / 8570): Active DoD 8570/8140 IAT Level II certification (e.g., CompTIA ...
Linux Engineer
Bethesda, MD ยท On-site
$125K - $155K/yr
Seeking a Linux Systems Administrator to provide day-to-day operations, deployment support, and ... Certifications (DoD 8140 / 8570): Active DoD 8570/8140 IAT Level II certification (e.g., CompTIA ...
Senior Linux Administrator
Owings Mills, MD ยท On-site
$55 - $60/hr
Senior Linux Administrator, location is Owings Mills, MD. The start date is ASAP for this 12-month ... ITIL Foundation Certification
Quick apply
Senior Linux Administrator
Owings Mills, MD ยท On-site
$55 - $60/hr
Senior Linux Administrator, location is Owings Mills, MD. The start date is ASAP for this 12-month ... ITIL Foundation Certification
Linux Certified information
What is a Linux Certified professional?
What are some common challenges faced by Linux Certified professionals in a collaborative IT environment?
What are the key skills and qualifications needed to thrive as a Linux Certified professional, and why are they important?
What is the difference between Linux Certified vs Linux System Administrator?
| Criteria | Linux Certified | Linux System Administrator |
|---|---|---|
| Certifications | Linux certifications like LPIC, CompTIA Linux+ | Often requires Linux certifications plus experience |
| Work Environment | Data centers, IT departments, server farms | Same as Linux Certified, with additional focus on system management |
| Employer & Industry Usage | Tech companies, hosting providers, enterprise IT | Same as Linux Certified, with more operational responsibilities |
| Search & Comparison Intent | Understanding certification benefits, career paths | Job roles, responsibilities, and qualifications |
Linux Certified professionals focus on obtaining certifications to validate their skills, often working in data centers and IT environments. Linux System Administrators typically have certifications plus hands-on experience managing Linux systems. Both roles are vital in tech and enterprise sectors, with overlapping environments and employer types. The main difference lies in the emphasis on certification versus practical system management responsibilities.
What jobs can I get if I learn Linux?
What jobs can I get with a Linux Certified?
What cities in Maryland are hiring for Linux Certified jobs?
Cities in Maryland with the most Linux Certified job openings:

Job description
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
- 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.
Requirements
Required 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.
About CDIT
Sourced by ZipRecruiter
Industry
It services
Company size
11 - 50 Employees
Headquarters location
Slidell, LA, US
Year founded
2003