linux administrator

<div><div><div><div><div><div><div><div><div>SMX is seeking a mid-level Information Assurance Linux System Administrator. The Administrator will support our NAWCAD customer at Patuxent River Naval Air Station.</div>
</div>
</div>Essential Duties &amp; Responsibilities
<ul>
<li>Monitor ticketing system for tasks</li>
<li>Monitor/Manage/Schedule/Forecast Upcoming IA Work</li>
<li>Work with a large variety of Data Center teams to alleviate Cyber findings and concerns</li>
<li>Attend collaboration meetings to address STIG/EvaluateSTIG discrepancies</li>
<li>Complete STIG checklists</li>
<li>ACAS scanning and reports</li>
<li>Support vulnerability detection, remediations, and mitigations</li>
</ul>
Required Skills/Experience
<ul>
<li>Clearance Required: Top Secret
<ul><li>Interim TS required to start</li>
</ul></li><li>2-4 years of Linux/Unix administration experience</li>
<li>Experience in DoD Information Assurance/Cyber policy and procedures to include hardening of systems, implementing STIGs, and scanning</li>
<li>Knowledge of NIST guidelines and Risk Management Framework (RMF)</li>
<li>DoD 8140 compliant certification (Examples of minimum acceptable certifications: CCNA Security, CySA+, G SEC, Security+ CE, SSCP)</li>
<li>Detail-oriented and able to work multiple assignments autonomously and in a team setting</li>
<li>Must be able to interact with peers, management, and senior engineers in a constantly evolving environment to ensure a positive customer experience and atmosphere in the workplace</li>
</ul>
Desired Qualifications
<ul>
<li>Bachelor's or higher degree</li>
<li>Advanced 8140 compliant certification</li>
</ul>
</div></div>Application Deadline: 4/6/2026

#cjpost #LI-ONSITE</div></div> 
</div><div>
At SMX&reg;, we are a team of technical and domain experts dedicated to enabling your mission. From priority national security initiatives for the DoD to highly assured and compliant solutions for healthcare, we understand that digital transformation is key to your future success.

We share your vision for the future and strive to accelerate your impact on the world. We bring both cutting edge technology and an expansive view of what's possible to every engagement. Our delivery model and unique approaches harness our deep technical and domain knowledge, providing forward-looking insights and practical solutions to power secure mission acceleration.

SMX is an Equal Opportunity employer including disabilities and veterans.

<div></div>Selected applicant may be subject to a background investigation and/or education verification.

SMX does not sponsor a new applicant for employment authorization or immigration related support for this position (i.e. H1B, F-1 OPT, F-1 STEM OPT, F-1 CPT, J-1, TN, E-2, E-3, L-1 and O-1, or any EADs or other forms of work authorization that require immigration support from an employer).</div></div>

Information Assurance Linux Administrator (5143)

SilverEdge Government Solutions

<div>Overview:
<div>
SilverEdge is a premier provider of innovative cyber, software, and intelligence solutions, addressing mission-critical challenges for the Department of Defense (DoD), Intelligence Community (IC), and beyond. We are dedicated to delivering impactful results to meet mission goals through cutting-edge technology and expertise. We are seeking a Linux Systems Administrator to join our dynamic team. This individual will play a pivotal role in developing innovative and effective solutions for our DoD customers within the IC sector.</div><div></div><div> 
The candidate will Analyze and resolve complex problems associated with server hardware, applications, and software integration. Configure and manage UNIX, Linux and Windows operating systems and install/load operating systems software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance.</div>
Required Qualifications:
<ul><li>Extensive experience with VMWare / Linux</li><li>
Government issued clearance with poly.</li></ul>
About SilverEdge:
<div>
SilverEdge Government Solutions was founded on the belief that nurturing talent and collaborating closely with our customers enables us to think big and deliver the best for our country. Our mission is to bring top technology talent together to solve the world&rsquo;s most challenging problems while protecting the United States and our allies.SilverEdge Government Solutions, LLC is an Equal Opportunity Employer and applicants receive lawful consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.</div></div>

Linux Systems Administrator

MANTECH

<div>MANTECH seeks a motivated, career and customer-oriented Linux Systems Administrator to join our team in either Las Cruces, New Mexico or Denver, CO. In this role, you will support enterprise Linux environments and data center infrastructure while helping ensure systems remain secure, reliable, and efficient. You will work closely with technical teams and customers to maintain systems, automate operational tasks, and provide hands-on support across physical, virtual, and cloud-based platforms.
Responsibilities include but are not limited to:<ul><li>
Managing and supporting Red Hat Enterprise Linux environments across physical, virtual, and cloud-based infrastructure supporting the daily operation and continuous improvement of Linux-based infrastructure and data center environments while ensuring systems remain reliable, documented, and aligned with mission needs</li><li>
Assisting users with application, account, hardware, and system-related issues while ensuring timely resolution</li><li>
Building, maintaining, updating, and retiring virtual, physical, and cloud-based Red Hat and Windows hosts</li><li>
Maintaining and supporting enterprise storage systems and hardware including servers, workstations, and network equipment</li><li>
Provisioning and decommissioning project resources such as Kubernetes namespaces, servers, and user workstations</li><li>
Performing data center operations including inventory, racking and cabling, hardware troubleshooting, and repairs</li><li>
Implementing security controls, maintaining documentation, and developing automation solutions to improve system efficiency</li></ul>
Minimum Qualifications:<ul><li>
5+ years of relevant technical experience to include Linux administration experience along with the ability to support enterprise infrastructure and data center operations.</li><li>
Experience administering Red Hat Enterprise Linux environments in enterprise or mission-critical settings</li><li>
Hands-on experience supporting physical and virtual infrastructure within data center environments</li><li>
Experience deploying and maintaining servers, workstations, and associated infrastructure components</li><li>
Experience troubleshooting hardware, operating systems, and infrastructure services</li><li>
Strong documentation skills with the ability to produce clear and usable technical documentation</li></ul>
Preferred Qualifications:<ul><li>
Candidates with additional experience supporting modern infrastructure technologies and enterprise environments will be well positioned for success in this role.</li><li>
Experience supporting Kubernetes or containerized environments</li><li>
Familiarity with enterprise storage platforms such as IBM ESS</li><li>
Experience supporting mixed Linux and Windows enterprise environments</li><li>
Experience developing automation scripts or tools to streamline administrative tasks</li></ul>
Clearance Requirements:<ul><li>
An active TS/SCI with Polygraph is required.</li></ul>
Physical Requirements:<ul><li>
Must be able to remain in a stationary position 50% of the time.</li><li>
Needs to occasionally move about inside office and data center environments to access equipment, racks, and hardware systems.</li><li>
Frequently communicates with co-workers, management, and customers. Must be able to exchange accurate information in these situations.</li></ul></div>

Astronics

<div>Join the Astronics team as a Senior Linux Systems Administrator!
Shape the Future of Aerospace Innovation
Join our corporate IT team as a Senior System Administrator specializing in Linux and cloud operations. In this high-impact role, you&rsquo;ll ensure the reliability, security, and performance of mission-critical Business and Engineering systems, including the Windchill (PLM) infrastructure, within a leading aerospace environment.
This role is hybrid, with onsite collaboration 1 day a week in our East Aurora, NY location. 

Your role will encompass:
<ul><li>Linux Administration: Maintain and optimize enterprise Linux systems, ensuring high performance, availability, and security.</li>
<li>Azure Cloud: Support and sustain cloud-based solutions, solve complex infrastructure challenges, and optimize resource utilization.</li>
<li>Windchill PLM Infrastructure Management: Oversee performance, upgrades, and support for Windchill to help engineers and business teams operate efficiently.</li>
<li>Business &amp; Engineering Systems Support: Provide end-to-end support for IT systems critical to engineering and business workflows.</li>
<li>Performance &amp; Incident Management: Analyze and resolve system issues promptly, minimizing downtime and ensuring operational reliability.</li>
<li>Collaboration with cross-functional teams to support new initiatives and improve system performance.</li></ul> 

Qualifications Required:
<ul><li>US Citizenship (as required by the International Traffic in Arms Regulations - ITAR)</li>
<li>4+ years&rsquo; experience as a Linux System Administrator in a large, regulated environment</li>
<li>Bachelor's Degree in IT, Computer Science, or related field or equivalent experience</li>
<li>Aerospace or manufacturing industry experience is preferred</li>
<li>Experience with Azure Cloud administration, including IaaS/PaaS operations and automation (Preferred: PowerShell, Azure CLI)</li>
<li>Hands-on knowledge of Windchill (PLM) infrastructure; experience with related system upgrades and integrations a plus</li>
<li>Solid understanding of IT operations supporting engineering systems (e.g., CAD/PLM tools)</li>
<li>Demonstrated problem-solving skills in large-scale IT environments</li>
<li>Strong troubleshooting, scripting, and ITIL-based incident management abilities</li>
<li>Excellent communication skills&mdash;confident working across IT and business functions</li></ul> 

Why You&rsquo;ll Love Working Here:
<ul><li>Flexibility that works: 9/80 schedule with every other Friday off</li>
<li>Direct influence on enterprise engineering systems and next-gen product development</li>
<li>Flexible hybrid schedule with collaborative, long-tenured IT teams</li>
<li>Strong benefits with a focus on career growth and work/life balance</li></ul> 

Compensation &amp; Benefits:
<ul><li>Base salary: $80,000 through $120,000, influenced by several factors including experience, skill set, education, certifications, market conditions, and business needs.</li>
<li>Competitive rewards: Benefits start the first of the month after hire, quarterly bonus tied to company profitability, 401(k) with 3% company contribution, Employee Stock Purchase Plan, paid holidays (including a full Christmas week shutdown), and comprehensive health/vision/dental coverage.</li>
<li>Ready to Soar? Apply Today!</li></ul></div>

Senior Linux Systems Administrator

<div>MANTECH seeks a motivated, career and customer-oriented Senior Linux Systems Administrator to join our team in either Las Cruces, New Mexico or Denver, CO. In this role, you will support mission-critical infrastructure by designing, implementing, and maintaining enterprise Linux environments. You will work closely with cross-functional teams to ensure systems are secure, reliable, and optimized while also helping mentor junior administrators and contribute to infrastructure modernization initiatives.
Responsibilities include but are not limited to:<ul><li>
Designing, implementing, and maintaining enterprise Linux environments with a focus on Red Hat Enterprise Linux (RHEL)</li><li>
Developing and maintaining infrastructure automation using tools such as Puppet, Ansible, or similar platforms</li><li>
Managing physical and virtual server infrastructure across data center environments</li><li>
Leading infrastructure projects and initiatives from planning through implementation</li><li>
Mentoring junior administrators and providing technical guidance across the team</li><li>
Performing hardware installations, upgrades, troubleshooting, and maintenance within data center facilities</li><li>
Implementing security best practices, monitoring system performance, and optimizing system availability</li></ul>
Minimum Qualifications:<ul><li>
8+ years of relevant technical experience to include Linux system administration experience with a strong focus on Red Hat Enterprise Linux (RHEL) and hands-on infrastructure support in enterprise environments</li><li>
Proven experience with configuration management and automation tools such as Puppet, Ansible, Chef, or SaltStack</li><li>
Hands-on experience supporting data center operations including server hardware installation and troubleshooting</li><li>
Demonstrated experience mentoring junior administrators or serving in a senior technical or team leadership capacity</li><li>
Strong troubleshooting, system performance tuning, and infrastructure support experience</li></ul>
Preferred Qualifications:<ul><li>
Candidates who bring additional DevOps, cloud, or containerization experience will be well positioned to support evolving infrastructure initiatives.</li><li>
Experience with container technologies such as Docker, Podman, or Kubernetes</li><li>
Familiarity with CI/CD pipelines and DevOps practices</li><li>
Experience with enterprise monitoring and alerting tools such as Nagios, Zabbix, or Prometheus</li><li>
Experience supporting or integrating with cloud platforms such as AWS, Azure, or Google Cloud Platform</li></ul>
Clearance Requirements:<ul><li>
An active TS/SCI with Polygraph is required.</li></ul>
Physical Requirements:<ul><li>
Must be able to remain in a stationary position 50% of the time.</li><li>
Needs to occasionally move about inside the office or data center environment to access equipment, racks, and hardware systems.</li><li>
Frequently communicates with co-workers, management, and customers, which may involve delivering technical updates or briefings. Must be able to exchange accurate information in these situations.</li></ul></div>

SAIC

<div>Job ID: 2610428
Location: Panama City Beach, FL, US
Date Posted: 2026-03-19
Category: Information Technology
Subcategory: Sys Administrator
Schedule: Full-Time
Shift: Day Job
Travel: Yes - 10% of the time
Minimum Clearance Required: Secret
Clearance Level Must Be Able to Obtain: Top Secret
Potential for Remote Work: ORA_ON_SITE 
Description
<div>SAIC is seeking a Systems Administrator, RHEL for the Joint Expeditionary Command and Control (JEXC2) program in Panama City Beach, Florida. 
Job Description: 
<ul><li>Responsible for building systems, organizing communication between functional areas for required media, and integrating patches &amp; merge request into the build procedures and media (e.g. for &quot;manual&quot; build process).</li><li>Generation, engineering, and documentation for engineering and software change requests.</li><li>Responsible for development of scripts &amp; procedures to provide major architectural updates to existing systems in the field, engineering and software change request documentation.</li><li>Work with cyber security office (CSO) on closing vulnerabilities and remediating other security issues.</li><li>Responsible for the management of all code &amp; repos used within the organization.</li><li>Develop code/scripts for other miscellaneous organizational areas and integrating with research and development (R&amp;D) efforts into field-ready, mature solutions</li><li>Proficiency in Red Hat Enterprise Linux and Ansible</li></ul></div> 
Qualifications
<div>Required Education and Experience: 
Bachelors and two (2) years or more related experience; Masters and zero (0) years or more experience; four (4) years of experience accepted in lieu of degree 
Qualifications: 
<ul><li>Demonstrated experience developing new Terraform and Ansible code towards automating system deployments.</li><li>Demonstrated experience writing Ansible playbooks.</li><li>Experience managing and maintaining deployments of various environments, consisting of both infrastructure and software deployments, including operating systems and commercial software.</li></ul>
Required Certification: 
<ul><li>CompTIA Security+ certification is required prior to first day of employment.</li></ul>
Clearance: 
Minimum Clearance Required: Candidate must have an Active Secret clearance with ability to obtain a Top Secret clearance.</div></div>

RHEL System Administrator

<div>RHEL Virtualization Engineer / Systems Administrator
Clearances Required: Active DoD Secret
Location: Huntsville, Alabama, United States
Job Description
TCS is searching for a RHEL Virtualization Engineer / Systems Administrator to support our Missile Defense Agency (MDA) customer in Huntsville, AL. The GMD program is a portion of the Missile Defense Agency's (MDA) system to protect the US and our allies from ballistic missile attack.
**********************************************************************
This is an in-office position. Work from home is not available.
**********************************************************************
Responsibilities:
<ul><li>Support infrastructure systems on Red Hat Linux (RHEL)-based platforms</li>
<li>Support and maintain high availability, distributed, multi-clustered server infrastructure and systems</li>
<li>Responsible for server infrastructure analysis, optimization, and capacity planning</li>
<li>Accountable for system administration, identity and authentication, information system security accreditation, data storage and backup, physical infrastructure maintenance, and automation development</li>
<li>Technical writing/creation of formal documentation such as architecture diagrams, technical designs, and SOPs</li>
</ul>
Required:
<ul><li>Bachelor's degree in a Science, Technology, Engineering or Math discipline with 2 years of 
experience OR Master&rsquo;s degree with 0 years of experience</li>
<li>Minimum of 2 years of experience with Systems Administration for Linux Operating Systems such as RedHat Enterprise Linux (RHEL)</li>
<li>Must have a DoD 8140 certification (ex: Security + CE)</li>
<li>U.S. citizenship with an active Secret clearance</li>
</ul>
Desired:
<ul><li>Experience with RHEL and Cisco Networks</li>
<li>Experience with Red Hat Satellite servers and configuration</li>
<li>Experience with VMWare ESXi, VMWare vCenter</li>
<li>Experience with LAN and WAN management</li>
<li>Familiarity with Network Technologies and Cybersecurity</li>
<li>Strong systems administrator experience, specifically in Linux Operating System environments</li>
<li>Experience with scripting using tools such as Python, Perl, Bash, PowerShell, etc.</li>
<li>Experience with network administration and related infrastructure</li>
<li>Experience with hardware installation and maintenance to include firmware upgrades</li>
<li>Candidate must demonstrate strong troubleshooting and problem-solving skills</li>
</ul>
Benefits:
<ul><li>Highlights of our benefits include BC/BS Health, Dental, Vision, 401(k) match, Profit Sharing, Flexible Time Off, STD/LTD/Life Insurance, Referral Bonuses, professional development reimbursement, vacation, sick leave, and maternity/paternity leave.</li>
</ul>
Apply online or visit us at www.tcs-inc.com/careers
TCS, Inc. is an EEO Employer.</div>

RHEL Virtualization Engineer / Systems Administrator

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