25 of 25 Senior Linux Administrator Jobs

Overview SENIOR LINUX ADMINISTRATOR (NETSERV) Bowhead seeks a Senior Linux Administrator (NetServ) to join our team in Dahlgren, VA. The Senior Linux Administrator(NetServ) is responsible for system administration and customer support of servers and workstations in a Research, Development, and Testing and Evaluation (RDT&E) environment. Responsibilities Utilize Red Hat … Enterprise Linux system administration experience to provide technical problem solving and in-depth consulting relative to system operations Automate installation methods and system imaging (e.g. Kickstart/Ansible) Use cryptographic experience to set up public key infrastructure (PKI) to create, manage, distribute, use, store, and revoke digital certificates and manage public-key encryption DISA STIG implementation and work within … Configure a system to provide networking services, including HTTP/HTTPS, DNS, SMTP, SSH and NTP Qualifications Minimum five to eight years' (5-8) experience in system administration of Linux-based servers and Linux-based workstations High School Diploma required; Bachelros degree preferred Ideal Linux Admin will have troubleshooting skills in RHEL 7/8/ More ❯

Job Title: Senior Linux Administrator Job Category: IT Location: On Site-Pentagon Clearance: Active Secret Clearance (TS/SCI eligibility preferred) SHR is a premier technology integrator solving our nation's most complex modernization and readiness challenges across the defense, federal civilian, and intelligence markets. Our robust portfolio of offerings includes high-end solutions in systems engineering … and deep expertise in existing and emerging technologies, we integrate the best components from our own portfolio and our partner ecosystem to deliver innovative, effective, and efficient solutions. The Senior Linux Administrator is responsible for designing, implementing, and maintaining secure, scalable Linux-based systems within enterprise environments. This role plays a critical part in the optimization … automation, and cybersecurity compliance of mission-critical infrastructure. The administrator ensures operational stability, supports incident response, and leads system modernization and automation efforts. Job Responsibilities: Manage Red Hat Enterprise Linux (RHEL) systems, including configuration, patching, and tuning. Implement and maintain automation using Ansible, Bash, and Python for configuration and deployment. Perform system hardening, vulnerability remediation, and compliance audits More ❯

Senior Consultant - Linux & Automation £45k- £65k Crawley We are seeking a passionate and skilled Senior Consultant - Linux & Automation to lead the design and delivery of Linux-based automation solutions for our client in West Sussex. This role will be hybrid working. They offer a competitive salary of £45k-£65k, alongside excellent benefits, including a very … strong bonus (10-30%), 29 days holiday (progressing up to 33), medical and dental coverage, and more. This position is ideal for Linux enthusiasts who have a background in system administration, scripting (Bash, Perl, Python), and automation tools, and are ready to step into a more strategic and impactful role. Our client seeks inventive and creative techies that want … to learn, grow and contribute to their project. Key Responsibilities: Project Leadership : Manage the planning and successful delivery of large-scale Linux and automation projects, ensuring client objectives are met with innovative and effective solutions. Design and Architecture : Develop scalable, secure Linux systems using Infrastructure as Code (IaC) tools such as Terraform and Ansible. Technical Implementation : Configure Linux More ❯

Senior Consultant - Linux & Automation £45k- £65k Crawley We are seeking a passionate and skilled Senior Consultant - Linux & Automation to lead the design and delivery of Linux-based automation solutions for our client in West Sussex. This role will be hybrid working. They offer a competitive salary of £45k-£65k, alongside excellent benefits, including a very … strong bonus (10-30%), 29 days holiday (progressing up to 33), medical and dental coverage, and more. This position is ideal for Linux enthusiasts who have a background in system administration, scripting (Bash, Perl, Python), and automation tools, and are ready to step into a more strategic and impactful role. Our client seeks inventive and creative techies that want … to learn, grow and contribute to their project. Key Responsibilities: Project Leadership : Manage the planning and successful delivery of large-scale Linux and automation projects, ensuring client objectives are met with innovative and effective solutions. Design and Architecture : Develop scalable, secure Linux systems using Infrastructure as Code (IaC) tools such as Terraform and Ansible. Technical Implementation : Configure Linux More ❯

world safe and secure. Program Overview Provides IC data management support to modernize mega data repositories, dataflow management, data provenance and compliance validation, and streaming solutions. About The Role Senior Linux System Administrator Location: San Antonio, TX Clearance Required: TS/SCI with Polygraph Your Mission: Peraton is seeking a Senior Linux System Administrator … Participating in system design and architecture discussions Maintaining system scripts, patching software, and managing user accounts Keeping accurate hardware and system inventoriesWho You Are: You're a proactive, skilled Linux system administrator with a strong background in: Operational troubleshooting of cloud-based systems and large-scale distributed clusters Tools such as Hadoop, Accumulo, and experience managing cloud infrastructure … technology and innovation. We offer competitive compensation, a comprehensive benefits package, and opportunities to grow your career while making a difference. Qualifications Job Requirements: Experience: 20+ years as a Linux System Administrator on projects of similar scope and complexity Proven ability to plan and lead system administration efforts Education: Bachelor's degree in System Engineering, Computer Science, Information More ❯

MANTECH seeks a motivated, mission-focused Senior Linux Systems Administrator to join our team in Chantilly, VA This opportunity allows you to become part of a diverse and innovative team supporting national security priorities in a collaborative, Big Data-driven environment. You will contribute to complex systems involving infrastructure, application development, data science, and advanced analytics-helping … to drive impactful solutions in support of critical government missions. As a Senior Linux Systems Administrator, you will help maintain and enhance the Sponsor's Linux environment alongside a talented team. You will be responsible for the operating system software and its seamless integration with hardware and applications across the organization. Responsibilities include, but are not … limited to: Planning, testing, installing, integrating, and maintaining new and upgraded versions of the relevant operating systems; building and hardening Linux servers, and establishing configuration baselines Applying all appropriate security and firmware patches in a timely manner, and assisting in creating, maintaining, and adhering to the organization's patch management plans Developing test plans and procedures; testing and integrating More ❯

Senior Linux Automation System Administrator Location: Aurora, CO (Onsite) Security Clearance: Active TS/SCI with Poly (CI/FS) required Schedule: Monday - Friday, 8:00 AM - 5:00 PM Pay: Starting at $140,000 - 145,000 (Negotiable) - Full benefits included Duration: 12-month contract - likelihood of year-over-year extension What You Will Do As a … Senior Linux Automation System Administrator, you will support a classified Raytheon program by building, maintaining, and securing IT systems. You will directly support mission-critical customer capabilities and collaborate with developers and system engineers to diagnose issues and implement solutions. Your responsibilities will include: Administering Red Hat Enterprise Linux (RHEL) systems Developing and utilizing automation tools … place before start) U.S. Citizenship DoD 8570 IAT Level 2 certification (e.g., Security+ CE, CCNA Security, GICSP, GSEC, SSCP, CySA+, or CND) Hands-on experience with Red Hat Enterprise Linux (RHEL) Proficiency in automation and scripting (Ansible, Bash, Python) Qualifications We Prefer Experience with VMware vCenter for deploying/administering virtualized environments Familiarity with network device management Experience administering More ❯

Job Number: R Linux System Administrator, Senior The Opportunity: Your technical expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting the Department of Defense? We're looking for a Cross Domain Platform System Administrator to help us design, deploy, and maintain Cross … Domain Solutions for an enterprise environment that supports critical cybersecurity mission customers. As a Linux system administrator on our project, you'll constantly look for ways to make the infrastructure better using the latest technology and the best implementation strategies. You'll recommend technologies and approaches to improve platform security and comply with security controls. You'll provide … Join our team and solve daily challenges as we improve cross domain. Join us. The world can't wait. You Have: 3+ years of experience with Red Hat Enterprise Linux or CentOS Experience with GIT Experience managing virtual machines and VMware ESXi Knowledge of Linux firewalls, Linux RPMs, networking configuration, and DNS TS/SCI clearance with More ❯

for Those Who Move the World." Sound like a team you want to be a part of? Come build your career with BAE Systems. BAE Systems is seeking a Senior Closed Area Linux Systems Administrator to provide comprehensive technical and operational support for classified IT systems. You will primarily support the GXP Program. BAE Systems Geospatial eXploitation … requires a seasoned IT professional with expertise in managing complex, air-gapped systems and lab environments in accordance with DoD and Intelligence Community security requirements. Mainly working in a Linux OS environmenet you will be responsible for the configuration, maintenance, and monitoring of secure networks and systems, including Lab-in-a-Box (LIB) environments, virtualization platforms, endpoint protection, and … or weekend support may be required for maintenance windows or incident response. You must be able to lift equipment (up to 40lbs) and work within controlled environments. In this Senior Linux System Adminisrator position you will make impacts in the following ways; Proficiency in Active Directory, including user/group management, OU structure, and GPOs. Install, configure, and More ❯

R- Description Leidos has a new and exciting opportunity for a Senior Linux Systems Administrator in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA) . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos … the ideal place to grow your skills and make a real impact. Click here to learn more about how this program "Delivers Mission Success!" Seeking a motivated and experienced Linux System Administrator for a small, diverse team that provides end-to-end software, systems, and network engineering services to support Integrated Discovery Operations (IDO). You will lead More ❯

R- Description Leidos has a new and exciting opportunity for a Senior Linux Systems Administrator in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos … Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Join our team as a Linux Systems Administrator, where you'll provide crucial support for the implementation, troubleshooting, and maintenance of Information Technology (IT) systems. You'll manage IT system infrastructure and processes, ensuring … hardware issues, configure and install system hardware/software, and maintain server and domain security requirements. Basic Qualifications: Experience: Ten or more (10) years of experience as a System Administrator (SA) supporting programs and contracts of similar scope, type, and complexity. Education: Bachelor's degree in a technical discipline from an accredited college or university. Five (5) years of More ❯

Move Forward with Volt Volt is immediately hiring for a Senior Linux Systems Administrator in Aurora, CO. You will be supporting a client's program in a classified environment as a 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 … certification (or higher). 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 Qualifications We Prefer Using and developing with More ❯

Off and Paid Holidays • Paid Parental Leave • 401k with generous company match • Training and Development Opportunities • Award Programs • Variety of Company Sponsored Events We are looking for a driven Senior Linux/UNIX Systems Administrator that is highly technical and mission focused. This ideal candidate is ready to operate as a TIER 3 level Linux/… UNIX Administrator, experienced in managing large amounts of data and storage at sites all over the world. This is a fast paced, ever evolving, challenging position that is mission focused and rewarding Responsibilities: Daily administration of multiple RHEL servers, attached storage, and the networks they utilize Provide Tier 3 problem identification, diagnosis and resolution Implement, troubleshoot and maintain IT … expected for installations, repair and disaster recovery Required Qualifications: Active TS/SCI clearance required with the ability to obtain a CI Poly Ten (10) years' experience as a Linux/UNIX Systems Administrator supporting complex, multi-site enterprise-scale environments Bachelor's Degree in a related field (Computer Science, etc.) Experience writing detailed, technical documentation 8570 Compliance More ❯

Duties & Responsibilities: Perform system administration for enterprise Linux/Unix OS solutions. Install, configure, and maintain Linux/Unix OS operating systems. Analyze and resolve problems associated with the operating system's servers, hardware, applications, and software. Monitor system performance and ensure compliance with security standards. Monitor everyday systems, evaluates availability of all server resources, and performs all … activities for Linux servers. Assist with configuring and deploying all virtual machines and install and provide backup to all configuration procedures. Maintain and monitor all patch releases, designs various patch installation strategies, and maintains all systems according to program standards. Provide Tier 2 and 3 troubleshooting support, interfacing with the end users and other technical teams from a service … Top Secret security clearance and eligible for SCI access Cloud+ or GICSP or SSCP or Security+ or GSEC certification At least 8 years experience in installing, configuring, and maintaining Linux/Unix OS operating systems Ability to work both independently and in a team environment with customer and staff Good verbal and written communication skills. Desired qualifications: One of More ❯

The Senior Linux Systems Administrator will serve as a key member of the Embedded Network Services team, responsible for architecting, deploying, securing, and maintaining enterprise-grade container orchestration environments in support of high-performance computing, AI/ML clusters, and mission-critical DoD systems. This role requires deep expertise in Kubernetes (K8s), Linux systems engineering, and … automation frameworks, as well as experience operating in secure, classified, and compliance-driven environments. The administrator will work closely with cybersecurity teams, scientific computing staff, and program management to ensure reliable, secure, and efficient operations for both development and production workloads. As a dynamic systems integrator, SMS offers proven solutions in engineering, operations, cybersecurity, and digital transformation. With expertise … headquartered in McLean, Virginia, with offices and on-site operations at customer locations throughout the United States. For additional information on SMS, visit . Submit your resume today! Responsibilities Linux Systems Administration Perform advanced administration of Red Hat Enterprise Linux (RHEL), CentOS, and Ubuntu systems in both classified and unclassified environments. Manage OS patching, kernel tuning, and performance More ❯

LINUX SYSTEM ADMINISTRATOR: Expert Level Location: Chantilly, VA US Security Clearance Requirement: TS/SCI with Full Scope Polygraph Clearance Status: Must be Current JOB DESCRIPTION: Inferno Systems is currently looking to hire individuals for our Linux System Administrator positions. Candidates should have a preferred minimum of 7+ years as a network engineer/system admin. … with fewer years of experience will be considered on a case-by-case basis, depending on technical skill level. JOB SUMMARY: This position will require a solid understanding of Linux administration as you help design, build and test new systems employed by our customer to support ongoing operations. You will be taking and managing requirements between developers and engineers … in Technical Exchange Meetings (TEMs) You will function as a Linux systems SME to help them design a system that both meets operational requirements and system security plans. Successful candidates will know how to install, configure, and maintain Linux operating systems. They will analyze and resolve problems associated with the operating system's servers, hardware, applications and software. More ❯

Position Overview: The Senior Linux System Administrator is responsible for leading system administration activities. This position oversees the installation, configuration, maintenance, and integrity of computing systems and software. The role involves planning, ensuring long-term system requirements align with organizational objectives, and implementing system enhancements to improve performance and reliability. Key Responsibilities: Lead system administration activities across … Education: Master's degree or Bachelor's degree with an additional 2 years of relevant experience • Certifications (Required): CompTIA Security+ CE or CompTIA Server+ CE Red Hat Certified System Administrator (RHCSA) MCSA, MAC OS, or MCP Must meet DoD 8750 and 8140 compliance requirements Technical Environment: Windows Server MCEM MAC OS RHEL, RedHat Enterprise Virtualization Hypervisor KVM Puppet Patch More ❯

Requires an active TS/SCI with Polygraph Quantifiable Linux SA work experience Ansible scripting Some Windows SA work ProxMox Centrify Harvester Rancher Kubernetes/Docker Other HCI (Hyperconverged Infrastructure) solution (Azure Stack HCI, Cisco HyperFlex Systems, DataCore SANsymphony, Dell VxRail Hyperconverged Infrastructure, HPE SimpliVity, Nutanix Hyperconverged Infrastructure (HCI), NetApp HCI, Scale Computing Platform (SC Platform More ❯

Your Mission: As a Linux Information Systems Administrator, your responsibilities will include: • Technical Support: Provide expert assistance to users in resolving technical issues with applications, connectivity, and other IT-related concerns. • Cybersecurity Expertise: Conduct environmental vulnerability scans, remediate vulnerabilities, and perform system hardening to ensure the security of our systems. • Root Cause Analysis: Perform in-depth analysis to … resolve technical issues in Linux environments, identifying and addressing the root causes of problems. • System Performance Optimization: Analyze and assess server performance, storage capacity, and plan for future needs to ensure optimal system performance. • Scripting and Automation: Leverage your scripting skills to automate routine tasks, such as server and workstation patching, and streamline IT processes. Basic Qualifications: • Top Secret … Required • Ability to lift 30 pounds • Must possess a CompTIA Security+ or equivalent DoD 8572 qualified certificate • Experience performing successful root cause analysis for problem resolution in Unix and Linux environments, with significant experience in: - Installing operating routine server/workstation patches, system security patches and firmware updates - Creating/managing security groups - Coordinating hardware repair activities - Diagnosing and More ❯

This is an excellent opportunity forSenior Linux HPC Systems Administrator/Engineerprofessionals to be part of leading-edge technology projects. Cognizants Cloud, Infrastructure & Security Services Practice provides end-to-end solutions covering architecture, design, implementation, management, and on-going support across the entire enterprise technology infrastructure. Our services include a spectrum of management, consulting, and systems integration services … issues and optimize service delivery. Maintain familiarity with MacOS systems to provide assistance when necessary. Required Skills Good enterprise IT experience with extensive hands-on expertise in RedHat Enterprise Linux (RHEL), specifically RHEL 8 & 9. Proven experience with high-end workstation hardware setups and scientific application support. Demonstrated knowledge of scientific computing and experience in high performance compute environments More ❯

This is an excellent opportunity forSenior Linux HPC Systems Administrator/Engineerprofessionals to be part of leading-edge technology projects. Cognizants Cloud, Infrastructure & Security Services Practice provides end-to-end solutions covering architecture, design, implementation, management, and on-going support across the entire enterprise technology infrastructure click apply for full job details More ❯

MS/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 Secret More ❯

/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 More ❯

open to Negotiation 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 Enterprise Linux (RHEL) based systems • Using and developing automation tools/frameworks such as Ansible, as well as scripting, primarily Bash and Python Desired Qualification Deployment and administration of systems, storage More ❯

Zachary Piper Solutions is seeking a Systems Administrator to support a complex, multi-site IT infrastructure based in El Segundo, CA. This role is centered around Red Hat Linux-based High-Performance Computing (HPC) clusters and includes support for secure lab environments, classified networks, and future integration of embedded Linux systems like VxWorks. Key Responsibilities: - Design and … software and systems engineering - Provide end-to-end IT support across desktops, servers, and virtualized environments - Manage system access, patching, and hardware/software release planning - Administer and maintain Linux (RHEL) and Windows systems - Troubleshoot complex system issues and automate tasks using scripting (e.g., PowerShell) - Support classified networks and ensure compliance with RMF/JSIG security standards - Integrate and … TS/SCI with a CI Polygraph (CI Poly within the last 5 years) - 5+ years of experience supporting lab/test environments and classified networks - Strong background in Linux and Windows OS installation, configuration, and troubleshooting - Hands-on experience with IT hardware, networking equipment, and HPC systems - The ability to stand up virtual Linux environments - Security+ certification More ❯