18 of 18 Senior Linux Systems Administrator Jobs

Overview i3 is seeking a Senior Linux Systems Administrator to support an Army Contract. The Senior Linux Systems Administrator will provide technical expertise supporting information system components, infrastructure integration and maintenance to satisfy architectural and business … requirements in support of customer labs. The Senior Linux Systems Administrator must have a customer centric approach and provide all levels of support for the user base community. Candidates for this position must possess, at a minimum, a United States SECRET level security … Cybersecurity, Data Science, Information Systems, or Computer Science and 6 years' experience or 10+ years equivalent experience. Must meet DoD 8140 Intermediate System Administrator qualifications, such as holding a Security+, Cloud+, GICSP, SSCP, or GSEC certification (or higher-level applicable certification). Must have a Linux+ certification More ❯

Job Title: Senior Linux Systems Administrator Location: Ipswich – 2 days Employment Type: Full-Time | Permanent Salary: 50-60K + Benefits We’re hiring on behalf of a cutting-edge tech-driven client in the connectivity sector who is seeking a seasoned Linux expert. If you're passionate about open-source systems, thrive in high-performance environments, and want to work with a company that truly values technical excellence — this is the opportunity for you. About the Role: As a Linux Systems Administrator , you will … performance, and security across a wide array of critical services. What You’ll Be Doing: Administering, upgrading and maintaining enterprise-level Linux systems: Unbuntu, Debian Automating routine tasks using Bash, Python, or similar scripting languages Developing & Deploying solutions – Building and maintaining Linux & Network infrastructure. Managing More ❯

Job Title: Senior Linux Systems Administrator Location: Ipswich – 2 days Employment Type: Full-Time | Permanent Salary: 50-60K + Benefits We’re hiring on behalf of a cutting-edge tech-driven client in the connectivity sector who is seeking a seasoned Linux expert. If you're passionate about open-source systems, thrive in high-performance environments, and want to work with a company that truly values technical excellence — this is the opportunity for you. About the Role: As a Linux Systems Administrator , you will … performance, and security across a wide array of critical services. What You’ll Be Doing: Administering, upgrading and maintaining enterprise-level Linux systems: Unbuntu, Debian Automating routine tasks using Bash, Python, or similar scripting languages Developing & Deploying solutions – Building and maintaining Linux & Network infrastructure. Managing More ❯

Senior Systems Administrator - Linux/AWS - Hertford Joining this fast-paced infrastructure team the Senior Systems Administrator will oversee and maintain internal payments, local infrastructure, data centre and cloud deployments, day-today operations and networks and ensure optimal … ensure the seamless operation and availability of new and existing infrastructure Diagnose, troubleshoot and resolve software, hardware and networking issues across internal and client systems Maintain accurate and comprehensive documentation for system administration and procedural workflows Work collaboratively with the support, DevOps and Project teams to align with and … utilising change control and where required, version control best practices Key skills:- Previous experience supporting PCI/DSS environments or ISO27001 is ESSENTIAL Strong Systems Administration experience Strong Linux and Windows administration AWS LDAP & AD management Scripting (Bash, Python and PowerShell) Strong security experience in Firewall hardware More ❯

SENIOR LINUX SYSTEM ADMINISTRATOR Vicksburg, MS DESCRIPTION Who we Are Known for being a Best Place to Work and a People First company, IronArch Technology is an award-winning Service-Disabled Veteran-Owned Small Business (SDVOSB) specializing in providing innovative solutions and world class … Deliver and Inspire Excellence, Do the right thing! WHAT YOU'LL DO IronArch Technology is seeking a Senior Linux System Administrator to support a team of administrators with standard Linux system administration duties at ERDC in Vicksburg, Mississippi. In support of the … of administrators provides program management and technical support necessary to advance services, capabilities, infrastructure, and technologies. The Senior Linux System Administrator will perform standard Linux System Administration duties as required to maintain smooth operation of multi-user computer systems consisting of 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 … Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Job Summary Join our team as a Systems Administrator, where you'll provide crucial support for the implementation, troubleshooting, and maintenance of Information Technology (IT) systems. You'll manage IT … 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 More ❯

Praescient Analytics is seeking a Linux Systems Administratort o join our diverse team at our Herndon, VA, office to support one of our Intelligence contracts. The candidate will work within a cross-functional Agile Scrum team as a jack-of-all-trades, maintaining applications running in Kubernetes … working as a Linux systems administrator, and working with the Information Assurance team to maintain systems documentation. This position is 100% on-site. Required Qualifications: • 5 years deploying and maintaining systems running on Linux or other UNIX-like systems - including … at least 2 years of Linux • 5 years of software/system design and architecture • 5 years maintaining systems documentation • 3+ years of enterprise-level software development • TS/SCI clearance with CI Poly required (No Exceptions) Preferred Qualifications: • Security+ or equivalent certification and willingness to serve More ❯

THIS POSITION INCLUDES A $10,000 SIGN-ON BONUS! AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of Information Technology, Test & Evaluation, Program Mission Support, Engineering & Analysis, and Training. Responsibilities As a Senior Linux Systems Administrator in a High Performance Computing Environment (HPCE) with AMERICAN SYSTEMS, you will have the opportunity to do the following: Enjoy a competitive salary, a generous benefits package, and a $10,000 sign-on bonus! Manage and optimize Linux-based platforms … secure containerized environments using Podman/Docker and Ansible. Monitor performance, conduct system upgrades, and ensure compliance with security protocols. Implement and maintain secure systems, applying DoD STIGs and configuring SELinux. Configure and manage network file systems (NFS) and log management solutions. Conduct backup procedures, disaster recovery planning 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 … and operation of IT systems. Optimize system operations, troubleshoot issues, and perform system capacity analysis and planning. Assist users in accessing and utilizing IT systems effectively, providing guidance and support as needed. Configure and manage UNIX or other applicable operating systems, and implement enhancements for improved reliability and … Five (5) years of additional SA experience on projects with similar software processes may be substituted for a bachelor's degree. Must have Linux administration experience Clearance Required: Must have an active TS/SCI with Polygraph. CONMD CSSRC Original Posting: March 26, 2025 For U.S. Positions: While More ❯

Digital Dynamo Linux Systems Administrator (We're always looking for great Systems Administrators of ALL LEVELS! And if all of the Systems Administrator positions are starting to look the same, and you may just want someone to review your resume. Go … that role becomes available. Feel free to check back with our Careers site too ) Join our dynamic team as a Digital Dynamo's aka Systems Administrator Extraordinaires! We're in search of a tech-savvy individual who will not only provide top-notch support for our IT … systems, but also inject a burst of energy into the world of day-to-day operations, monitoring, and creative problem-solving. If you're ready to embrace a role that lets you unleash your innovation, look no further! Your Adventures Await: Mastermind system optimization and unleash the true potential More ❯

now. We've got what you're looking for. Job Description: Parsons is looking for an amazingly talented Senior Linux Systems Administrator to join our team! What You'll Be Doing: Support the system administration for ARL high performance computers Support design of … Army Research Laboratory A2I2 building for systems being delivered in 2024 and future platforms Advise in architectural tradeoffs including NVidia Grace/Hopper, ARM, AMD, and new file systems Identify open-source software tools and stacks for customer-specific and production platforms Develop and implement software instrumentation to … measure and visualize the performance of various systems, sub-systems, and user jobs Serve as a subject matter expert to HPC program system administration team for research, development, and production HPC system What Required Skills You'll Bring: Extensive background in diverse Linux operating systems More ❯

else, protecting our mission partners and ensuring program success. Our Mission. Your Success. To learn more, visit Bryn Neil is looking for a Sr. Systems Administrator to join our world-class engineering team. In this role, you'll be responsible for maintaining both Windows and Linux systems in a secure cloud environment. Required Skills: TS/SCI with CI Poly 10+ years of experience CompTia Sec+ certification Unix/Linux Administrator Active Directory and Windows Administrator Jenkins AWS Preferred Qualifications Scripting & Automation: Strong skills in Bash, shell More ❯

10K Sign-on bonus A Senior Linux System Administrator Maintains an organization's computer systems' workflows and is responsible for the upkeep, configuration, and reliable operation of computer systems, including fixing network issues along with updating equipment and software Classified work and … more Linux/UNIX and 20% or less Windows with 600+ Physical and virtual servers covering various levels of very complex classified systems and networks. Responsible for performing in-depth analysis and technical support of systems, including complex problem resolution, design, development, testing, operational integration, and … user support. Provide operating systems planning and evaluation for performance analysis, capacity planning and hardware upgrades. Provide specialized expertise within multiple IT systems such as: Windows 2016/2019 server, Red Hat Enterprise Linux, VMWare hypervisor, VMWare Horizon, as well as general knowledge of related disciplines. More ❯

supporting internal customers, designing, implementing and managing lab infrastructure to meet the customer requirements. This position will have an emphasis on Linux Systems OS along with a mix of Windows OS. This is a customer service-oriented role requiring attention to detail, self-motivation and working well … share, and other collaboration servers to support groups of heterogeneous client systems. Partner with facilities security staff to develop and apply hardening steps for systems for classified use to NISPOM Chapter 8, JAFAN, and other customer standards. Document system configuration for new and existing systems. This role will require … PXE and WDS automated system installation technologies Configuration management tools (Subversion, ClearCase Red Hat Enterprise Linux and CentOS NetApp Management Automated backup systems Preferred Education, Experience, & Skills Bachelor's Degree CompTIA Security+ certification Ability to work both Server Admin and Field service ( PC ) Pay Information Full-Time More ❯

Defense Data Center in Huntsville, Alabama. Responsibilities: Responsible for design, installation, configuration, administration, operation, maintenance, monitoring, troubleshooting, documentation of classified and unclassified MDDC Program systems and networks and associated equipment, devices, and software IAW applicable MDA and DoD guidance, instructions, procedures, and processes. Ensures IT systems are fully … of the MDDC Program for classified and unclassified systems. Work with vendors in support of current Linux based software installations and keep systems in compliance. Works closely with Program Management, Information Assurance, software development, analysis groups, and end-users to understand and implement requirements necessary to MDDC … and recoveries. Maintains IT databases and performs light programming tasks in relation to system administration needs. Researches, evaluates, and recommends new and emerging IT systems technologies to advance and support MDDC Program requirements. Leads, trains, and supports the work of other junior staff engaged in system administration functions. Assists More ❯

deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. Job Title: Linux System Administrator (Active Secret) Job Code: 21212 Job Location: Colorado Springs, CO (Onsite) Job Description: L3Harris is currently searching for a Linux System Administrator to be part of a highly motivated team. The candidate will work closely with other organizations in a technical climate to monitor and maintain information systems. Our intelligence, surveillance, and reconnaissance (ISR) solutions serve a broad array of government, civil and commercial customers by … for mission success, good communication skills, and strong willingness to learn. In addition, experience supporting help desks for Linux and UNIX based systems is required. Essential Functions: Monitor, operate, and maintain Linux based applications. Monitor Kubernetes nodes and pods. Monitor data flow within mission systems. More ❯

Top Secret/SCI w. Full Scope to be considered for this position. Apply in 60 seconds at Summary: SYSTOLIC is seeking a Senior System administrator experienced with supporting Linux systems. Qualifications & Compensation: Candidates must possess 15 years of experience and a Bachelor's … with networking System configuration management software (e.g. Puppet, Ansible) and change control. Experience with configuring and managing UNIX and Windows (or other applicable) operating systems and installs/loads operating system software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve … reliability and performance. Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices, mobile devices, etc. About SYSTOLIC: SYSTOLIC is dedicated to giving our employees the best possible company experience so that they More ❯

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 … 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 More ❯