Linux Administrator Jobs
Linux Administrator jobs are open across enterprise IT, government agencies, healthcare systems, cloud services, and managed service providers, from entry-level helpdesk-adjacent roles to senior and lead positions, with common specializations in RHEL/CentOS administration, automation and scripting, and security hardening. Scan the live roles below and apply to whichever ones fit.
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Location: Huntsville, Alabama (100% Onsite)
Clearance Required: Active Top Secret Clearance (U.S. Citizenship Required)
Employment Type: Full-Time / Permanent
Education: Bachelor’s Degree (B.S.) in Computer Science, Information Systems, or related field
Experience: Minimum 8+ years of hands-on Linux system administration and cloud operations experience
Job description:
We are seeking an experienced Senior Linux System Administrator with proven expertise in AWS cloud environments to support mission-critical systems within a classified defense program.
This position is fully onsite in Huntsville, AL, supporting a federal intel agency
The ideal candidate has deep experience managing Red Hat Enterprise Linux (RHEL) or similar distributions, implementing automation and infrastructure-as-code solutions, and maintaining high-availability, secure cloud environments in compliance with DoD security standards.
Key Responsibilities
Administer and maintain Linux servers (RHEL, CentOS, Ubuntu) in classified and unclassified environments.
Design, implement, and maintain AWS infrastructure (VPC, EC2, S3, CloudWatch, IAM, RDS, EFS).
Automate provisioning, configuration, and deployment tasks using Ansible, Terraform, or CloudFormation.
Monitor system performance, conduct root-cause analysis, and implement performance tuning.
Patch and harden Linux systems to meet DISA STIG and RMF compliance requirements.
Manage user accounts, permissions, and security policies in accordance with DoD standards.
Support and integrate CI/CD pipelines and DevSecOps practices.
Collaborate with cybersecurity teams to ensure continuous monitoring and incident response.
Participate in Agile/Scrum sprints, providing infrastructure support to development and QA teams.
Required Skills and Qualifications
Bachelor’s degree in Computer Science, Information Systems, Engineering, or related field.
8+ years of hands-on Linux system administration experience (RHEL, CentOS, Ubuntu).
Proven experience managing cloud infrastructure in AWS (VPC, EC2, EBS, S3, IAM, CloudFormation, CloudWatch).
Proficiency in troubleshooting networking concepts (TCP/IP, DNS, firewalls, load balancers).
Familiarity with CI/CD tools (Jenkins, GitLab CI/CD, AWS CodePipeline).
Working knowledge of security hardening (STIGs, CIS benchmarks) and RMF controls.
Excellent problem-solving, documentation, and communication skills.
Desired Certifications such as:
Familiarity with container technologies (Docker, Kubernetes, ECS/EKS).
Experience with AWS GovCloud or classified AWS regions.
AWS Certified SysOps Administrator or Solutions Architect
Red Hat Certified Engineer (RHCE)
Security+, CISSP, or equivalent DoD 8570 certification.
Exposure to monitoring tools (Splunk, Prometheus, Grafana, Nagios).
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Who's Hiring
Top Industries Hiring
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What Employers Look For
The qualifications that appear most often in linux administrator jobs.
- Proficiency with Linux distributions such as RHEL, CentOS, Ubuntu, or Debian
- Experience administering servers in cloud environments like AWS, Azure, or GCP
- Scripting ability in Bash, Python, or PowerShell for automation and maintenance tasks
- Familiarity with configuration management tools such as Ansible, Puppet, or Chef
- CompTIA Linux+, RHCSA, or equivalent certification preferred or required
- Bachelor's degree in computer science, information technology, or a related field
Tips for Your Linux Administrator Job Search
Certify your skills before you apply
Employers filter heavily on credentials for linux administrator roles. Prioritize RHCSA or LPIC-1 over general IT certifications. Listing only CompTIA A+ signals a different career track and can get your resume screened out before a human sees it.
Tailor your resume to each stack
Job postings vary sharply between shops running RHEL, Ubuntu, or Debian. Mirror the exact distribution names from each posting in your resume's skills section. Recruiters and automated screens both look for exact matches, so generic 'Linux experience' undersells you.
Apply early to roles that fit
Migrate Mate lists linux administrator openings from across the United States in one place, so you can find roles that match and apply directly to each listing.
Show automation work, not just uptime
Hiring managers want evidence you can write Bash, Python, or Ansible scripts that replaced manual tasks. Include one or two concrete examples in your resume, such as a script that cut deployment time or automated patch cycles across a server fleet.
Prepare for a live troubleshooting round
Most linux administrator interviews include a technical screen where you diagnose a broken system in real time. Practice walking through boot failures, networking misconfigurations, and permission errors out loud, because interviewers grade your reasoning as much as the final fix.
Negotiate using scope, not just title
When an offer comes in below your target, anchor your counteroffer to the infrastructure scope you'll own, such as server count, cloud footprint, or on-call load. Framing around responsibility makes the ask concrete and harder to dismiss than a title-based argument.
Linux Administrator Jobs: Frequently Asked Questions
Which companies are hiring the most linux administrators?
The companies hiring the most linux administrators right now include Peraton, Leidos, and Raytheon, with the largest share of openings in Maryland, Virginia, and California, based on current listings on Migrate Mate as of November 2026. Government contractors, managed service providers, and healthcare networks consistently account for a large portion of posted openings.
How many linux administrator jobs are remote?
About 21% of linux administrator openings are fully remote or hybrid as of November 2026, reflecting demand for distributed infrastructure support. Sub-specializations in cloud administration, DevOps-adjacent roles, and monitoring tend to offer the highest share of remote arrangements, while roles tied to on-premises data centers or classified government environments are more likely to require on-site presence.
How do you become a linux administrator?
Start by building hands-on experience with a Linux distribution at home or through a lab environment, then earn a foundational certification such as CompTIA Linux+ or RHCSA to validate those skills formally. Move into a junior systems or helpdesk role that involves Linux exposure, take on server ownership incrementally, and deepen your scripting and automation skills over time. Most mid-level positions expect several years of progressive server administration responsibility.
How do you get hired as a linux administrator with little experience?
Target entry-level systems technician or junior administrator postings that list Linux as one requirement among several rather than the primary focus. Build a home lab, document what you built, and reference it directly in your resume to show initiative. Earning RHCSA or LPIC-1 before applying gives you a concrete credential that compensates for limited professional history. Managed service providers often hire junior candidates and expose them to diverse environments quickly.
What does the linux administrator interview process look like?
Most linux administrator interviews follow a structured sequence: an initial recruiter screen focused on experience and availability, a technical phone interview covering core concepts like file permissions, process management, and networking, and then a hands-on assessment where you troubleshoot a broken system or complete a task in a live environment. Final rounds typically involve a panel conversation with the infrastructure or platform team to assess communication and problem-solving approach.
Where can I find and apply to linux administrator jobs?
You can find and apply to linux administrator jobs on Migrate Mate, which lists current openings from across the United States. Search for roles that match your distribution experience, seniority level, and preferred work arrangement, then apply directly to each listing that fits. New openings are added regularly, so checking back frequently helps you catch postings before competition increases.
See All 183+ Linux Administrator Jobs
Find roles that match your experience and apply in just a few clicks.
Find Linux Administrator Jobs