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Junior Linux Administrator Jobs (NOW HIRING)

Quevera LLC

System Administrator II (Linux Admin)

Odenton, MD · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Quevera is seeking a highly skilled Linux Systems Administrator with an active TS/SCI clearance ... Mentor junior team members and promote best practices across the team. * Continuously evaluate ...

GDIT

Linux Systems Administrator

Concord, NC · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Provide technical mentorship and guidance to junior administrators and team members. * Support projects focused on improving the security, efficiency, scalability, and resilience of Linux ...

GDIT

Linux Systems Administrator

Concord, NC · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Provide technical mentorship and guidance to junior administrators and team members. * Support projects focused on improving the security, efficiency, scalability, and resilience of Linux ...

GDIT

Linux Systems Administrator

Concord, NC · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Provide technical mentorship and guidance to junior administrators and team members. * Support projects focused on improving the security, efficiency, scalability, and resilience of Linux ...

Prattwhitney

Principal System Administrator

Mckinney, TX · On-site

$86.80 - $165.20/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Collaborate with teams and mentor junior Linux admins. * Apply understanding and knowledge of Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, and server replication methods.

Raytheon

Principal System Administrator

Mckinney, TX

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Collaborate with teams and mentor junior Linux admins. * Apply understanding and knowledge of Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, and server replication methods ...

Staffed4U

Senior Linux Systems Administrator

College Park, MD · On-site

$200K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Senior Linux Systems Administrator Location: College Park, MD Clearance Required: Active TS/SCI ... Provide mentorship or guidance to junior administrators when needed. Required Qualifications

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How much do junior linux administrator jobs pay per year?

As of Aug 12, 2026, the average yearly pay for junior linux administrator in the United States is $74,999.00, according to ZipRecruiter salary data. Most workers in this role earn between $72,500.00 and $77,500.00 per year, depending on experience, location, and employer.

What does a junior Linux administrator do?

The job duties of a junior Linux administrator revolve around working on day-to-day operations for Linux-based systems. Your responsibilities in this career may include working to build and configure applications; troubleshoot when network problems arise; install upgrades, new software, and fixes; and maintain existing systems. Junior administrators may perform network tuning activities to improve the efficiency of the current network. You may offer technical expertise to other members of the IT department or handle Linux scripting duties when required for the system. You usually work under the indirect management of a senior administrator.

What are the key skills and qualifications needed to thrive as a junior Linux administrator, and why are they important?

To thrive as a Junior Linux Administrator, you need a solid understanding of Linux operating systems, basic networking concepts, and scripting, often supported by a degree in IT or relevant certifications like CompTIA Linux+ or LPIC-1. Familiarity with command-line tools, server monitoring systems, and configuration management software such as Ansible or Puppet is typically required. Strong problem-solving abilities, attention to detail, and effective communication are valuable soft skills in this role. These skills ensure efficient system maintenance, quick troubleshooting, and reliable collaboration within IT teams to support organizational infrastructure.

What is a junior Linux administrator?

Junior Linux Administrators are entry-level IT professionals responsible for supporting, maintaining, and troubleshooting Linux-based systems. They assist with system updates, user management, security configurations, and basic server administration tasks under the supervision of more experienced administrators. Their role is crucial for ensuring the smooth operation of Linux servers and services in organizations, often providing support for both hardware and software issues. Junior Linux Administrators typically work to gain hands-on experience and deepen their knowledge to advance to more senior positions.

What is the difference between Junior Linux Administrator vs Linux System Administrator?

AspectJunior Linux AdministratorLinux System Administrator
CertificationsEntry-level certifications like Linux+ or LPIC-1Advanced certifications like LPIC-2, RHCSA, or RHCE
Work Experience0-2 years2+ years
ResponsibilitiesBasic server maintenance, user management, troubleshootingServer configuration, performance tuning, security management
Work EnvironmentEntry-level IT teams, support rolesMid-level IT teams, infrastructure management

The Junior Linux Administrator typically handles basic Linux server tasks with less experience and certifications, focusing on support and routine maintenance. In contrast, a Linux System Administrator has more experience, advanced certifications, and handles complex server configurations and security. The roles differ mainly in responsibility level and expertise required.

What are some common challenges faced by junior Linux administrators during their initial months on the job?

Junior Linux Administrators often encounter challenges such as adapting to varied Linux distributions, troubleshooting unfamiliar system errors, and managing permissions securely. Learning to efficiently use command-line tools and scripting for automation can also be daunting at first. However, most organizations provide mentorship or team support, allowing junior admins to gradually build confidence and expertise while handling real-world server maintenance, updates, and user management tasks.
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Junior Linux Administrator jobs near you
Infographic showing various Junior Linux Administrator job openings in the United States as of August 2026, with employment types broken down into 86% Full Time, and 14% Contract. Highlights an 86% In-person, and 14% Remote job distribution, with an average salary of $74,999 per year, or $36.1 per hour.

Junior Red Hat Linux Engineer

Agile Defense

Quantico, VA • On-site

Other

Re-posted 12 days ago

Job description

About Agile Defense
At Agile Defense we know that action defines the outcome and new challenges require new solutions. That's why we always look to the future and embrace change with an unmovable spirit and the courage to build for what comes next.
Our vision is to bring adaptive innovation to support our nation's most important missions through the seamless integration of advanced technologies, elite minds, and unparalleled agility-leveraging a foundation of speed, flexibility, and ingenuity to strengthen and protect our nation's vital interests.
Requisition #: 1639
Job Title: Junior Red Hat Linux Engineer
Location: Quantico, VA
Clearance Level: Secret, Must Have Clearance to Start
Required Certification(s): DoD 8570 IAT III or IAM II (CASP+, CCNP Security, CISA, GSE, SCNA, CISSP, CAP, GSLC, CISM, GCED, GCIH, CISO, or HCISPP)
Job Description
The successful candidate will use their Red Hat Linux experience to support the Customer in the design and implementation of their Assured Compliance Assessment Solution (ACAS) for the Customer's Government Enterprise Networks (GEN). The Linux Administrator will operate and maintain the infrastructure for the ACAS solution to support network and appliance scanning and configuration assessments and provide training to operators and Information Assurance personnel to maintain and operate the ACAS tool functionality.
DUTIES AND RESPONSIBILITIES:
  • Install and patch operating systems, application, and document Department Information Systems Agency (DISA) Security Technical Implementation Guidelines (STIGs) applicable to each network environment for all ACAS implementations.
  • Assesses current ACAS implementations for each of the GEN networks and recommend changes.
  • Document the steps required to design the ACAS solution for each of the GEN networks to include IP address, Fully Qualified Domain Name, and physical location of each component.
  • Create network diagrams of the designs with Microsoft Visio (include list of hardware and software requirements).
  • Maintains the Nessus scanners and Passive Vulnerability Scanner's (PVS) connectivity with the associated Security Center (SC).
  • Develop and/or update the Standard Operating Procedures (SOP) to support each of the client ACAS solutions documented within the SharePoint portal.
  • Provide reports as necessary.
  • Build Linux Server from DISA provided ISO image.

Education and Background
  • Knowledge and experience with RedHat Linux.
  • Possesses understanding and experience with common cybersecurity toolsets and processes to include STIGs, CAS, IAVA Management and Implementation, and Operation Order (OPORD)/Fragmentary Order (FRAGO) support.

Years of Experience
  • 3+ years' experience in supporting, configuring, and administering Linux
  • 3+ (RHEL) operating system in an enterprise environment RHEL 7.x or greater
  • Experience with virtualized environments (vSphere, ESXI)

Required Skills
  • Red Hat Enterprise Linux (RHEL) experience.
  • Must be able to troubleshoot SSH connection issues.
  • Good understanding of LVM Partitioning, Disk space and troubleshooting Systems related issues.
  • Familiar with VMware and vSphere.
  • Understanding of SSL/TLS Certificate and OS hardening.
  • Strong understanding of Network configuration and troubleshooting (nmtui, nmcli, service, netstat, grep, top command).
  • Understanding of patching and RPM package management is a MUST!!!
  • Be able to troubleshoot Kernel Panic, Root and Grub password Reset, & Firewall configurations.
  • Familiar with Ansible, Ansible-playbook and ansible roles

Preferred Skills
  • Understanding on Red Hat Satellite Version 6.12 or higher
  • Familiar with Active Directory Concepts, LDAP, or Kerberos
  • Familiar with migration from RHEL7 to RHEL8 using Leapp utility.
  • Build or configure new YUM Repositories for patching purposes.
  • Familiar with AWS/AZURE Cloud for future projects.
  • Scripting (Nessus Attack Scripting Language (NASL), Python, Bash)
  • Engineering experience with Nessus Manager and Monitor Implementation
  • Able to spin new instance on the cloud from a given AMI or Launch Template
  • Understand the concept of Security Groups, VPC, IAM, Autoscaling, Load Balancer Container architecture

Working Conditions
  • General office environment. Work is generally sedentary in nature but may require standing and walking for up to 10% of the time. The working environment is generally favorable. Lighting and temperature are adequate, and there are not hazardous or unpleasant conditions caused by noise, dust, etc. Work is generally performed within an office environment, with standard office equipment available.
  • Contractor site with 0-10% travel possible
  • Possible off-hours work to support releases and outages
  • 10 lbs. maximum lifting, occasional lift/carry of small articles
  • Occasionally required to stand; frequently required to walk and sit
  • Continually required to utilize hand and finger dexterity
  • Occasionally required to climb, balance, bend, stoop, kneel or crawl
  • Continually required to talk or hear
  • Continually utilize visual acuity to operate equipment, read technical information, and/or use a keyboard

$100,000 - $115,000 a year
Our Core Values
Employees of Agile Defense are our number one priority, and the importance we place on our culture here is fundamental. Our culture is alive and evolving, but it always stays true to its roots. Here, you are valued as a family member, and we believe that we can accomplish great things together. Agile Defense has been highly successful in the past few years due to our employees and the culture we create together.
What makes us Agile? We call it the 6Hs, the values that define our culture and guide everything we do. Together, these values infuse vibrancy, integrity, and a tireless work ethic into advancing the most important national security and critical civilian missions. It's how we show up every day. It's who we are.
  • Happy - Be Infectious. Happiness multiplies and creates a positive and connected environment where motivation and satisfaction have an outsized effect on everything we do.
  • Helpful - Be Supportive. Being helpful is the foundation of teamwork, resulting in a supportive atmosphere where collaboration flourishes, and collective success is celebrated.
  • Honest - Be Trustworthy. Honesty serves as our compass, ensuring transparent communication and ethical conduct, essential to who we are and the complex domains we support.
  • Humble - Be Grounded. Success is not achieved alone, humility ensures a culture of mutual respect, encouraging open communication, and a willingness to learn from one another and take on any task.
  • Hungry - Be Eager. Our hunger for excellence drives an insatiable appetite for innovation and continuous improvement, propelling us forward in the face of new and unprecedented challenges.
  • Hustle - Be Driven. Hustle is reflected in our relentless work ethic, where we are each committed to going above and beyond to advance the mission and achieve success.

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

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