linux system administrator

Muller's Solutions

<div>This position functions around the clock, 24/7/365, to deliver extensive support for the enterprise RHEL server environment. The role involves the installation, configuration, management, operation, and maintenance of all RHEL server systems and RHEL Clusters (including Pacemaker). It is essential to ensure system stability through daily operations, patch management, monitoring, and troubleshooting, as well as providing support for SAP environments that operate on RHEL. 
Key Responsibilities:<ul><li>
Install, configure, and manage Linux servers and applications to ensure optimal performance and high availability.</li><li>
Monitor system performance, perform routine maintenance, and apply updates as needed.</li><li>
Identify and resolve issues related to the operating system, hardware, and network configurations.</li><li>
Implement and enforce security best practices within Linux environments, including firewalls, user permissions, and file integrity measures.</li><li>
Assist in the deployment and management of applications hosted on Linux servers.</li><li>
Document system configurations, procedures, and troubleshooting documentation for reference by the team.</li><li>
Support backup and recovery processes to maintain data integrity and availability.</li><li>
Collaborate with development teams to enhance deployment processes and ensure effective integration of Linux applications. Ensure that all RHEL systems are managed in accordance with vendor recommendations and security best practices, while also maintaining compliance with NCA, NIC, and SEC Cybersecurity regulations.</li><li>
Contribute to the management of the operating system lifecycle, including planning for version upgrades and decommissioning.</li><li>
Install, configure, manage, operate, and maintain RHEL server systems and clusters (e.g., RHEL 7, 8, 9). Provide daily operational support, including OS installation, monitoring, troubleshooting, virus protection, and resource management. Manage RedHat HA Extension (PACEMAKER) clusters and support SAP, SAP HANA, and SAP S/4HANA environments on the RHEL platform. Regularly review system logs and OS behavior to proactively monitor and address potential issues.</li><li>
Build strong relationships with the ERP, application, database, and web hosting teams for daily support, troubleshooting, and scheduled maintenance activities.
</li><li>Manage and maintain client agents for server monitoring (SCOM, AppDynamic) and server management (SCCM). Create and maintain technical and detailed design documentation, as well as technical operation documentation. Create, maintain, and delete user/group accounts and implement account policies. Raise and manage support tickets with RedHat, including troubleshooting, log collection, and follow-up.</li></ul> 

Requirements 
Requirements:<ul><li>
Degree: Bachelor&rsquo;s degree in Computer Science, Information Technology, or a related field.</li><li>
Years of Experience: 3-5+ years of practical experience in Linux System Administration (RHEL/CentOS) in an enterprise context.</li><li>
Special Technical Skills: Proficient in RHEL (versions 7, 8, 9) and RHEL Clustering (Pacemaker). Extensive experience in supporting SAP/SAPHANA on RHEL. Demonstrated ability in the installation, monitoring, troubleshooting, and patch management of operating systems. Experience in managing user and group accounts. Familiarity with monitoring solutions such as SCOM/AppDynamics and management tools like SCCM.</li><li>
Special Generic Skills: Capability to work in a 24/7/365 shift environment. Excellent documentation skills, including design and operational documentation. Strong teamwork abilities for effective collaboration with application and database teams. Awareness of cybersecurity regulations (NCA, NIC).</li><li>
Decision Authority Matrix: Authorized to install, configure, patch, and maintain all RHEL systems and clusters. Responsible for daily operations, monitoring, and troubleshooting of the RHEL environment. Empowered to create and manage user/group accounts and their associated policies. Oversee the entire lifecycle of vendor support tickets for RedHat.</li></ul>
Preferred Qualifications:<ul><li>
Certifications such as Red Hat Certified System Administrator (RHCSA) or Linux Professional Institute Certification (LPIC) are a plus.</li><li>
Experience with cloud services (AWS, Azure) for deploying and managing Linux applications.</li><li>
Familiarity with configuration management tools (e.g., Ansible, Puppet).</li><li>
Ability to manage multiple priorities and projects in a fast-paced environment.</li><li>
Strong communication skills to work effectively with remote teams.</li></ul> 

Benefits 
Why Join Us:
Opportunity to work with a talented and passionate team.
Competitive salary and benefits package.
Exciting projects and innovative work environment.</div>

Linux OS System Administrator(Saudi National Only)-Remote

<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)

ibex

<div>
 
 GSO is seeking an experienced System Administrator to manage and support both Linux and Windows server environments. The ideal candidate will have strong hands-on expertise in Linux systems along with solid knowledge of Windows Server, Active Directory, core Microsoft services, backups, patching, and vulnerability remediation.
 
 
 
 
 
 Job Purpose &amp; Accountabilities:
 
 <ul>
 <li>
 Administer and maintain Linux and Windows servers.
 </li>
 <li>
 Manage Active Directory, DNS, DHCP, and DFS services.
 </li>
 <li>
 Perform regular system patching and security updates.
 </li>
 <li>
 Identify and remediate vulnerabilities.
 </li>
 <li>
 Monitor system performance and resolve operational issues.
 </li>
 <li>
 Manage and verify backups and support disaster recovery activities.
 </li>
 <li>
 Maintain documentation and follow change management processes.
 </li>
 </ul>
 
 
 
 
 
 Qualifications, Skills, and Experience:
 
 
 <ul>
 <li>
 4+ years of experience in Linux and Windows server administration.
 </li>
 <li>
 Strong troubleshooting and system management skills.
 </li>
 <li>
 Experience with backup solutions and patch management.
 </li>
 <li>
 Good communication and documentation skills.
 </li>
 </ul>
</div>

System Administrator

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

Business Solutions & Services (BSS) - USA

<div>
 
 Job Summary
 
 
 
 We are looking for a skilled Red Hat Engineer with 3 &ndash; 5 years of experience in Linux system administration, container platforms, and enterprise infrastructure environments. The ideal candidate should have hands-on expertise in Red Hat Enterprise Linux (RHEL), automation tools, and container orchestration using Red Hat OpenShift.
 
 
 
 Key Responsibilities
 
 
 
 <ul>
 <li>
 Install, configure, and maintain Red Hat Enterprise Linux (RHEL 7/8/9) servers.
 </li>
 <li>
 Manage patching, upgrades, system hardening, and performance tuning.
 </li>
 <li>
 Deploy and manage containerized workloads on Red Hat OpenShift.
 </li>
 <li>
 Support containerization using Docker and orchestration via Kubernetes.
 </li>
 <li>
 Implement automation using Ansible and manage CI/CD pipelines (e.g., Jenkins).
 </li>
 <li>
 Monitor system health and performance using tools such as Nagios or Grafana.
 </li>
 <li>
 Support cloud and hybrid environments across major cloud platforms.
 </li>
 <li>
 Manage virtualization platforms and support on-prem to cloud migrations.
 </li>
 <li>
 Ensure infrastructure security, compliance, and documentation standards.
 
 
 
 </li>
 </ul>
 
 Required Skills
 
 
 
 <ul>
 <li>
 3 &ndash; 5 years of hands-on Linux administration experience.
 </li>
 <li>
 Strong expertise in Red Hat Enterprise Linux.
 </li>
 <li>
 Experience managing Red Hat OpenShift environments.
 </li>
 <li>
 Knowledge of automation, scripting (Bash/YAML), and DevOps practices.
 </li>
 <li>
 Understanding of networking, storage, and virtualization concepts.
 </li>
 <li>
 Experience supporting development, testing, and production environments.
 
 
 
 </li>
 </ul>
 
 Preferred Certifications
 
 
 
 <ul>
 <li>
 Red Hat Certified System Administrator (RHCSA)
 </li>
 <li>
 Red Hat Certified Engineer (RHCE)
 
 </li>
 </ul>
</div>

Red Hat Engineer

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>

Linux Systems Administrator

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10000 linux system administrator jobs Near Me

Linux OS System Administrator(Saudi National Only)-Remote

Linux OS System Administrator(Saudi National Only)-Remote

Information Assurance Linux Administrator (5143)

System Administrator

Senior Linux Systems Administrator

Red Hat Engineer

Linux Systems Administrator