Linux Systems Administrator Job Vacancies

101 to 117 of 117 Linux Systems Administrator Jobs

Linux System Administrator with Security Clearance

Winchester, Virginia, United States
Mission Services LLC (MSI)
Position Overview Provide administration, support, and operational excellence for Red Hat Enterprise Linux (RHEL) systems within a secure, mission-critical environment. Assist in integrating and managing hybrid infrastructure leveraging AWS cloud services. Key Responsibilities Install, configure, patch, and maintain Red Hat Enterprise Linux (RHEL) systems in both virtualized and physical environments Manage AWS components … documentation in tools such as Jira and Confluence Participate in on-call rotations to ensure high availability and rapid incident response Qualifications Required: 5+ years of RHEL/Linux system administration experience in enterprise or secure settings Hands-on experience with AWS services (EC2, ELB, Auto Scaling, etc.) Strong scripting skills (e.g., Bash, Python) for automation tasks Experience … applying system hardening and security best practices Ability to troubleshoot system and network issues across Linux and cloud environments. Top Secret clearance.(SCI eligibility and willing to get CI poly More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Linux/Windows Senior Systems Administrator with Security Clearance

San Diego, California, United States
Hybrid / WFH Options
Lockheed Martin
experience with Red Hat Enterprise - Microsoft Windows Server Setup, Configuration, and Administration - Experience providing lab support including: Network/System Administration - Experience with server and desktop management of Linux and Windows environments - Familiar with package deployment, imaging, and patching Desired Skills: - Compliance with DoD Risk Management Framework (RMF) Policies (or NIST 800-53) - Experience providing support in classified … Level II or higher certification: CCNA Security, CSA+, GICSP, GSEC, Security + CE, or SSCP is required. - Familiar with Active Directory and SCCM - Experience with Aegis and other BMD systems/platforms - Experience interacting with both internal and external customers/end-users - Must be able to work independently with minimal supervision Security Clearance Statement: This position requires a … based in many states throughout the U.S., and Internationally, with business locations in many nations and territories. Experience Level: Experienced Professional Business Unit: RMS Relocation Available: Possible Career Area: Systems Engineering: Network Systems Engineers Type: Task Order/IDIQ Shift: First More ❯
Employment Type: Permanent
Salary: USD 143,865 Annual
Posted:

Linux System Administrator with Security Clearance

Fairfax, Virginia, United States
Information Technology Engineering Corporation
System Administrator Location: Fairfax, VA and Aurora, CO. Required Clearance: Top Secret Since 1999, ITEC has been a powerhouse in supporting mission-critical programs for the DoD and Intelligence community, building a solid reputation along the way. At ITEC, we don't just care for our employees-we champion them with competitive salaries, an outstanding employee care program … contract, candidates for this position are required to be a US Citizen and will be subject to a background investigation. Job Description: As a member of a System Administrator team for … a large Linux enterprise system, the primary responsibility of the System Administrator will be to maintain, upgrade and provide support for Linux operating systems and infrastructure. The candidate needs to be able to diagnose and resolve problems and respond to issues in a timely manner. The individual should be able to easily communicate More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Linux System Administrator with Security Clearance

Colorado Springs, Colorado, United States
Parsons
include Colorado Springs, the National Capital Region, and other Continental United States (CONUS) locations. The qualified applicant will design, implement and maintain the Linux Information Technology (IT) systems (Red Hat Enterprise Linux (RHEL and will design the basic computing infrastructure to accomplish key tasks, establish networking rules for cybersecurity and troubleshoot Linux system … integration of existing SAP network infrastructures. Ensure that the organization's information technology system is operating at maximum efficiency, from manufacturing to distribution. Install, configure, test and maintain operating systems, application software and system management tools. Integrate COTS & GOTS products to collect, display and remediate a variety of automated system security and system operations/performance functions and metrics. … Cisco Certified Network Associate-Security (CCNA-Security), Cybersecurity Analyst Plus (CySA+), Global Industrial Cyber Security Professional (GICSP), GIAC Security Essentials (GSEC), CompTIA Security+ (Security+), Certified Network Defender (CND), or Systems Security Certified Practitioner (SSCP) Must have the ability to work in a fast paced, dynamic environment and effectively interact with numerous DOD, military/civilian personnel and industry partners More ❯
Employment Type: Permanent
Salary: USD 190,200 Annual
Posted:

System Administrator - Red Hat Linux, VMWare with Security Clearance

San Antonio, Texas, United States
NineFX, Inc
We're looking for a System Administrator with a TS/SCI and Full Scope Polygraph to analyze and resolve complex … problems associated with server hardware, applications, and software integration, particularly around Red Hat Linux and VMWare. You'll configure and manage Linux and Windows operating systems and installs/load operating systems software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance. Qualifications … GICSP CND GSEC SSCP CCNA Security You can obtain the certificate up to 60-days after starting the job if needed. Ten (10) years experience as a System Administrator in programs and contracts of similar scope, type, and complexity is required. A bachelor's degree in a technical discipline from an accredited college or university is required. Five More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

TS/SCI - Linux/Windows/ AWS System Admin - CI POly with Security Clearance

Aurora, Colorado, United States
Associates Systems LLC
Negotiation KEYS • Using and developing with automation tools/frameworks such as Terraform, Ansible, and Chef as well as scripting - particularly in Bash and Python • Experience administering Windows based systems • Experience with pipeline tools such as Jenkins and Artifactory • Demonstrated ability to work independently and troubleshoot problems with efficiency • Deployment and administration of systems in Amazon WebServices (AWS … Linux System Administrator. Responsibilities include building, maintaining, and securing Information Technology systems and directly supporting customer mission-critical capabilities. You will work closely with program developers and system engineers to research issues, determine root causes and implement solutions to system problems. Must be able to support occasional after hour maintenance and on-call support and must be … IAT Level 2 requires one or more of the following Professional Certifications: Security+ CE, CCNA Security, GICSP, GSEC, SSCP, CySA+, CND. • Experience administering Red Hat Linux based systems with minimal support, to include patching, creating/maintaining RPM packages, performance tuning, networking, user management (LDAP), and security hardening More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Linux System Administrator with Security Clearance

Annapolis, Maryland, United States
Set of X
strong sense of shared responsibility and ownership. Because who you work with matters. The candidate will participate in a new long-term effort to consolidate a diverse set of systems into a new cohesive solution that improves system manageability and security, while providing enhanced capability with a strong focus on improved user experience. The candidate will be a part … stages of this high visibility effort and help build a sound foundation to ensure the project's continued success. Responsibilities: Work with current owners and administrators to understand existing systems, requirements, and problem areas. Provide direct input for organization long-term efforts and visions for future architecture and design. Provide system administration functions to fix critical problems or implement … stop-gap solutions as part of the transition to the new consolidated architecture. Translate existing requirements and use-cases of current systems into scalable and supportable long-term solutions. Implement and support final solution(s). Participate in frequent internal engineering and strategy team meetings. Build direct customer relationships to improve organizational feedback loop. Required Skills: Extensive RedHat (RHEL More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Linux System Administrator 2/3 with Security Clearance

Columbia, Maryland, United States
Power3 Solutions
signal processing and sensor system integration services to the United States Government (USG) and the industry base that supports them. Geon seeks to be known for "signals, sensors, and systems". Geon has expertise in the science and development of signal processing techniques and algorithm solutions for multi-INT applications. The signal processing and hardware focused sectors of Geon … are supported by the work Geon conducts with open architectures, open frameworks, and open systems that facilitate the rapid development, integration, and deployment of techniques and capabilities to operational contexts. Come join a company that brings unique expertise and value to our customers. The System Administrator will provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem … will be part of a team evaluating system and hardware problems and will be responsible for the resolution process. They will configure and manage UNIX and Windows operating systems and will install/load operating system software, troubleshoot, maintain integrity and configure network components along with implementing operating system enhancements to improve reliability and performance. Experience with Container More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Linux System Administrator $250K-$300K TS/SCI-FS Poly with Security Clearance

Annapolis Junction, Maryland, United States
SYSTOLIC
must already possess an active Top Secret/SCI w. Full Scope Polygraph to be considered for this position. Apply in 60 seconds at Summary: Linux System Administrator Qualifications: Experience with: Kubernetes, Docker, Rancher, Slurm Job Description: Managing, configuring and deploying networking switches. Work with tools such as Docker, Rancher, Slurm and puppet Experience writing bash … scripts Stand-up, maintain and improve clusters for different projects Secure systems to hardening requirements meet compliance. Work with vendors to plan upgrades and hardware improvements to future deployments/expansions. Experience prioritizing tasks and managing a small team SYSTOLIC is hosting two information sessions on October 8, 2025 about the Intel Community contracting industry and how our company More ❯
Employment Type: Permanent
Salary: USD 300,000 Annual
Posted:

Linux Syst Admin

Cheltenham, Gloucestershire, United Kingdom
DXC Technology Inc
improvement. Role responsibilities: Excellent organisation and time management skillsWillingness to both share your knowledge and learn from others Desirable Skills and Technologies Proficiency in UNIX/Linux systems(Red Hat, Debian, Solaris, AIX, etc.)Knowledge of scripting with Bash, Python, and/or GitExperience of AWS Competitive compensation DXC Select - Our comprehensive benefits package (includes private health …/medical insurance, childcare vouchers, gym membership and more) DXC Technology (NYSE: DXC) helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability across public, private and hybrid clouds. The world's largest companies and public sector organizations trust DXC to deploy services to drive new levels of More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Linux System Administrator with Security Clearance

San Antonio, Texas, United States
NineFX, Inc
You'll provide expertise on hardening Linux images and administering Linux across the organization. Qualifications: Fifteen (15) years experience as a system administrator in programs and contracts of similar scope, type, and complexity is required. Bachelor's degree in a technical discipline from an accredited college or university is required. Five (5) years of More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Linux System Administrator with Security Clearance

Utah, United States
Golden Tech Systems Inc
and errors in applications Develop recommendations for enhancing software support services Ensure adherence to IT infrastructure standards, policies, and procedures Update work instruction documentation and standard operating procedures Ensure systems and applications comply with Department of Defense (DoD) directives, including DISA STIG and IAVM bulletins What's In It For You: Competitive wages Medical and dental coverage 401(k …/MA Degree and 10+ years of relevant experience Experience and Skills in the Following: System administration, including system design, configuration, maintenance, and upgrades of Red Hat Enterprise Linux (RHEL) Use of DISA STIG checklists to assess and document compliance Preferred Education, Experience, & Skills: Experience with Virtual Desktop Infrastructure Scripting to automate tasks using PowerShell and/or … AWS Console Familiarity with Virtual Desktops and virtualization (VMware ESXi preferred) Experience in large-scale deployments as an administrator Knowledge of cloud migration and AWS Cloud Platform (IaaS preferred) Load balancing/failover technologies General knowledge of antivirus, vulnerability scanning software, and Security Information and Event Management (SIEM) User acceptance testing (UAT) and industry certifications An active Top More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Linux System Administrator (TS/SCI)

herndon, virginia, united states
Vantor
control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3). Please review the job details below. We are seeking a solutions-oriented System Administrator to support a user base solving unique and challenging problems in support of national security. The ideal candidate thrives on technology and innovation, working within a small, multi-disciplinary … will collaborate directly with users and technologists to ensure solutions, tools, and development meet mission needs, with opportunities for career growth in the DevSecOps profession. Responsibilities : Monitor secure-side systems operations and implement solutions to improve platform functionality and performance. Track, remediate, and report IAVM vulnerabilities; implement STIG guidance and support ATO sustainment efforts, including patching. Collaborate with software … solution-focused mindset with the ability to work independently in fast-paced, dynamic environments while leveraging factory reach-back support. Familiarity with military/intelligence operations or IC PED systems is a plus. Pay Transparency: In support of pay transparency at Vantor, we disclose salary ranges on all U.S. job postings. The successful candidate’s starting pay will fall More ❯
Posted:

Linux System Administrator (TS/SCI) with Security Clearance

Herndon, Virginia, United States
Vantor
control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3). Please review the job details below. We are seeking a solutions-oriented System Administrator to support a user base solving unique and challenging problems in support of national security. The ideal candidate thrives on technology and innovation, working within a small, multi-disciplinary … will collaborate directly with users and technologists to ensure solutions, tools, and development meet mission needs, with opportunities for career growth in the DevSecOps profession. Responsibilities: Monitor secure-side systems operations and implement solutions to improve platform functionality and performance. Track, remediate, and report IAVM vulnerabilities; implement STIG guidance and support ATO sustainment efforts, including patching. Collaborate with software … solution-focused mindset with the ability to work independently in fast-paced, dynamic environments while leveraging factory reach-back support. Familiarity with military/intelligence operations or IC PED systems is a plus. Pay Transparency: In support of pay transparency at Vantor, we disclose salary ranges on all U.S. job postings. The successful candidate's starting pay will fall More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Linux System Administrator with Security Clearance

Orlando, Florida, United States
Encode
levels of total system product to include concept, design, fabrication, test, installation, operation, maintenance and disposal. • Ensures the logical and systematic conversion of customer or product requirements into total systems solutions that acknowledge technical, schedule, and cost constraints. • Performs functional analysis, timeline analysis, detail trade studies, requirements allocation and interface definition studies to translate customer requirements into hardware and … Clearance • Bachelor's degree from an accredited college in a related discipline, with 2 years of professional experience; or no professional experience with a related Master's degree • Linux Server Administration (RedHat … and SLES) experience • Windows Server and Desktop OS experience • DoD IAT Level II certification (i.e. Sec+ CE) • Ability to work second or third shifts Desired Qualifications: • Knowledgeable in information systems networking • Experience working with VMWare/ESXi, VSphere, and Hyper-V for automated configuration/updates • Experience with Excel, Agile, Atlassian tool suite (JIRA/Confluence) and IBM Engineering More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Analyst I - Linux Sys Admin

Gloucester, Gloucestershire, United Kingdom
DXC Technology Inc
one of the world's leading IT solutions enterprises, helping us deliver services and solutions in both challenging and exciting situations.One of our platinum accounts has openings for Linux System Administrators for varying skill levels. The successful candidate will work within a small team which will require a good level of knowledge on DevOps engineering methodologies and that … and problems Excellent written and verbal communication skills An ability to adapt quickly and work in an agile fashion Desirable Skills and Technologies : Hands-on production experience on Linux, OpenShift Good knowledge on Linux, Kubernetes and OpenShift Role based access control in relation to OpenShift roles and SCC's Good troubleshooting skills on OpenShift and Kubernetes … seeker to purchase IT or other equipment on our behalf. More information on employment scams is available . DXC Technology (NYSE: DXC) helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability across public, private and hybrid clouds. The world's largest companies and public sector organizations trust More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Linux Sys Admin with Security Clearance

Aurora, Colorado, United States
Anonymous Employer
Supporting NRO/Intel Community Linux Sys Admin - DEN - (1 opening), FFX - (1 Opening)- High Priority - • Clearance: Ops Blazer - TS/SCI, ICECAT - TS or higher • Degree highly preferred (mid to senior level candidates) - Sec+ CE Required - ICECAT can consider a junior candidate • For Ops Blazer, candidate would start at our Greenwood Village, CO office and then eventually … move full-time to client site in Aurora, CO (travel once per quarter, could be OCONUS) o Enterprise Linux administration o Scripting (any Linux language) - if they are expensive, they better be good with scripting or it's a no-go o Ability to build/maintain/administer servers o Docker/Kubernetes (big plus More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:
Linux Systems Administrator
10th Percentile
£31,000
25th Percentile
£47,500
Median
£55,000
75th Percentile
£91,250
90th Percentile
£101,000