1,476 to 1,500 of 4,844 Linux Jobs

R- Description Leidos frequently has exciting opportunities for Linux System Administrators in the 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, we offer competitive benefits , including 4 or … Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Job Summary: As a Linux System Administrator, you will play a vital role in maintaining the efficiency and reliability of our IT systems. You will oversee the infrastructure, address technical challenges, and implement solutions to … and Windows operating systems, ensuring system integrity and performance. Basic Qualifications: Bachelor's degree in a technical discipline from an accredited college or university. See details below for required Linux experience per level as well as required experience in lieu of bachelors degree. System Administrator (SA) Skill Level 0 BS+2+ YoE as a Linux SA, ND +7+ System Administrator (SA More ❯

ManTech seeks a motivated, career- and customer-oriented Linux Systems Administrator to join our team in Hanover, MD. This role supports a global workforce executing mission-critical operations in defense of our Nation. As part of the Enterprise Infrastructure Services (EIS) organization, you will help manage core infrastructure and support the delivery of Enterprise Information Technology (EIT), the foundational platform … Responsibilities include, but are not limited to: Provide Systems Administration support for CNOS labs in a Help Desk capacity and collaborate with lab teams across locations Maintain and manage Linux and Windows user accounts, profiles, and ticket queues, ensuring prompt support for developer requests Assist other lab managers within the domain architecture and perform racking, stacking, loading, and configuration of … years of experience as a System Administrator in programs and contracts of similar scope, type, and complexity Preferred Qualifications: Experience deploying, upgrading, or maintaining servers and systems Knowledge of Linux operating systems supporting Tacacs+ and Syslog Experience with Active Directory, DHCP, DNS, and LDAP networking concepts Hands-on experience with cabling, racking, and stacking IT equipment Familiarity with the Jira More ❯

We are now seeking a highly skilled Senior System Administrator - Linux to support the ongoing development and optimisation of our osapiens HUB. In this role, you will be responsible for managing and enhancing our infrastructure, automating deployment processes, and ensuring the reliability, scalability, and security of our platform. The osapiens HUB is a modern, enterprise-grade application development platform. It … backups. Instead, users can focus on their highest value activities: implementing business logic and crafting beautiful user interfaces. Activities You take care of the administration, maintenance, and updates of Linux servers in our public clouds, but also on-premises You are responsible for the design, optimization, and availability of the cloud infrastructure You support operational customer environments in the server … You support your colleagues in the operation of cloud infrastructures for our national and international customers Requirements A completed training as Specialist IT - System Integration, or comparable Handling many Linux (Ubuntu) systems using tools (e.g. Ansible), and managing Java applications, Apache Cassandra/ScyllaDB, Elasticsearch, and HA Proxy is not difficult for you Several years of professional experience with monitoring More ❯

innovators. Join us and take your place in space. Job Summary We are looking for a Systems Administration Staff II/III. In this role, you will use enterprise Linux expertise to support enterprise Linux systems in a classified environment. You will support aerospace engineering staff using these systems to perform scientific and engineering analyses that support critical national space … assets. To excel in this role, you would be familiar with Linux provisioning, troubleshooting, patching, security hardening, and user support performed in a classified environment. Work Model This is a full-time position based in Chantilly, VA, which requires 100% onsite work. What You'll Be Doing Install Red Hat Enterprise Linux and Oracle Linux on physical systems, including implementing … encryption-at-rest (LUKS) Provision Red Hat Enterprise Linux and Oracle Linux VMs Patch, reboot, and troubleshoot patching processes ( e.g. GPU drivers & kernel modules ) and patching infrastructure on large classified networks and in stand-alone (air-gapped) networks System and user data and configuration backup and restore Provide enterprise Linux troubleshooting, tier 2 and 3 Linux user support including software More ❯

North Point Technology is seeking an experienced TS/SCI Cleared Linux Systems Engineer to provide support to a mission critical enterprise identity and access management system. A successful candidate will develop an understanding of the services offered to external organizations, provide lifecycle systems engineering support to development and operations on the program, and use a combination of technical and … SME to define network requirements, user metrics, maintenance of our PPSM, and support to development needs. Responsible for infrastructure patching and OS baseline hardening Manage several environments as a Linux SME providing overall support to the program and working with Enterprise Services to ensure compliance with security services and applications. Required Skills/Experience: Bachelor's Degree in Computer Science … EC2, Reserved Instances, etc.) Familiar with System Engineering documentation creation (VDDs, network diagrams, data flows, etc.) Experience working with Agile Team Collaboration tools such as (Jira, Confluence, RocketChat) Strong Linux background and familiarity with best practices of infrastructure management Preferred Skills/Experience Experience with AWS and other cloud vendors. Experience with Amazon Web Services technical performance versus cost management More ❯

Clearance Requirement: TS/SCI with Full Scope Polygraph Clearance Status: Must be Current JOB DESCRIPTION: Inferno Systems is currently looking for proactive and self-motivated individuals for our Linux Threat Hunter positions. In this unique position, you will be working closely with deployed Linux servers dealing with data flows and collection of network data to write malware signatures using … by identifying known malware, finding unique patterns and anomalies to discover new threat actors and taking operational actions to achieve mission requirements. You should be comfortable working in a Linux (CentOS/Debian/Ubuntu) environment, using SSH and being able to conduct regular Linux system administration, configuration and maintenance tasks. You will be able to help improve existing Standard … requested but is not required. BS degree must be in a technical discipline OR may substitute three years of sponsor-specific experience for BS degree. REQUIRED SKILLS: • Experience with Linux (CentOS/Debian/Ubuntu) systems administration • Ability to automate tasks through Bash/Perl/Python scripting • Understanding of network layers, protocols and flows • Familiarity with analyzing network traffic More ❯

Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. Amentum is seeking a Mid Level Linux Administrator to join our team of passionate individuals in Hanover, MD. In this role you will support challenging, mission-critical projects that make a direct impact on the Nation's security and intelligence … an engineering office, our customer and our workforce look and plan for future expectations- continuously trying to stay ahead of the next challenge This position as a mid level Linux Administrator will provide candidates the chance to work on more traditional system administrator functions, such as patching, checking for vulnerabilities, providing feedback to security for vulnerabilities as well as non … part of this development environment, candidate may also have the opportunity to gain exposure and support network equipment as well as storage solutions. Candidate will work alongside a senior Linux Administrator as a mentor to provide support and opportunities to learn as much as the candidate is able to. Candidate and their mentor will provide support as needed to a More ❯

Investment Banking - Low Latency C++ Developer - financial markets/Linux/Scripting/low latency/TCP/IP PURPOSE AND SUMMARY We are looking for a C++ developer to be part of the low latency development team. The team provides industry leading low-latency trading services for our clients, utilizing FPGA, C++ and Java technologies. The candidate will be … EXPERIENCES ASSESSMENT 7+ years of C/C++ development experience Experience with financial markets/clients Experience with order entry gateway development. Experience with market data Reasonable knowledge of Linux Some Scripting knowledge Interest and some knowledge of principles of developing for low latency Relationship Builder Ability to work under pressure to meet targets Understanding of TCP/IP protocol More ❯

missions. Balancing complexity, functionality, and time-to-deliver across multiple stakeholder projects is a key skill mix for this position. Responsibilities include but not limited to: •Administer GNU/Linux desktop/server environments, including Red Hat, Ubuntu, and Centos distributions •Administer Microsoft Windows and Apple Macintosh desktop environments, including Win 10 and OS X •Support installation, maintenance, repair, and … technology and support practices •Maintain regular contact with MIT LL IT and security resources and to rapidly reconfigure systems to report and remediate performance and security issues Skills: Required •Linux Administrator including scripting •Netapp Administrator, setup and troubleshooting •An understanding of network setup at the system level (i.e. IPTables and firewalls) •LDAP proficient administration, setup and maintenance •JIRA •Configure and More ❯

Hedge Fund - Senior C++ Quant Developer - Equities - Linux - Python - Data/Algos/Low latency Hedge Fund background essential C++ (Version 11 upwards), Linux, Python (nice to have). Trading systems experience - ideally experience working in the equities space. Ideally the technical has experience with algo implementation. Quantitative Developer - Equities Technology We are in search of a Quantitative Developer to More ❯

R- Description Leidos has a new and exciting opportunity for a Principal 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, we offer competitive … implements the latest technology? Well, look no further! This is an exciting time to contribute to a mission-critical program with lasting impactful results. 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 the smooth … college or university. Five (5) years of additional SA experience may be substituted for a bachelor's degree bringing the required experience to 20 years. Technical Skills: Experience with LINUX, Windows and Virtualization Security Clearance: Must have an active Top Secret/SCI with Polygraph cssrc conmd Original Posting: May 12, 2025 For U.S. Positions: While subject to change based More ❯

Are you passionate about Linux and ready to take the lead on a high-impact enterprise system? We’re looking for a Lead Infrastructure Engineer (Linux) to join our team and play a critical role in designing and deploying Red Hat Enterprise Linux (RHEL) systems within a major greenfield environment. You’ll be the go-to expert for all things … users. Providing input into disaster recovery, monitoring, and security planning processes. What you’ll bring: Active SC Clearance and eligible for DV Clearance. Proven expertise in Red Hat Enterprise Linux (RHEL) administration and design. Strong understanding of security controls, including host firewalls, SELinux, and intrusion detection. Knowledge of networking fundamentals, especially from a security perspective. Experience working in highly governed More ❯

and other tasks as assigned. Lead and coordinate the Red Hat Installation and configuration. Design, develop and deploy Red Hat Podman containers. Experience with Server, Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, RAID, backup and server replication methods. Install and configure software applications requested by end users. Experience documenting and training on advanced IT processes and … with some of, but not limited to, the following technologies: Red Hat Enterprise Server, Active Directory, WSUS, VMware, BackupExec, NetBackup, prior systems administration and networking administration experience, Windows or Linux administration, backup, and recovery enterprise suites. Experience with Server architecture and troubleshooting methods and be able to assist in developing solutions and documentation to a variety of technical problems. Experience … using VMWare vCenter, vSphere, Linux Desktops, Windows desktops (Windows 10, 11), Splunk and ESX and/or other virtual computing methods. Preferred Qualifications: Department of Defense Directive (DoDD) 8140/8570 Certification requirements (CompTIA Security+ CE or equivalent certification) and an Operating System Certification. Direct working experience with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF. In-depth More ❯

and communication of status to agency management and internal customers. Provides support for the dispatch system and hardware problems and remains involved in the resolution process. Configures and manages Linux and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and configures network components along with implementing operating systems enhancements to improve reliability and performance. Qualifications More ❯

values are transparent; being open and honest with each other. Come and join our dynamic team! JOB DESCRIPTION Seeking a highly motivated, talented and driven Systems Administrator (Windows/Linux) to work Onsite supporting enterprise IT for our War-fighter customer who upholds America's status as the "Land of the Free" every day, at work, or at play. RESPONSIBILITIES … maintain physical and virtual hardware infrastructure, to include virtual machines and containers Perform routine maintenance and configuration changes to various physical and virtual hosts REQUIREMENTS 8+ years of experience Linux systems administration experience working with Windows Server 2016/2019, Active Directory, DNS, Hyper-V, Group Policy Objects (GPOs), VMware/vSphere, DISA STIGs, ACAS, SAN, Networking Install, configure and … guidance Maintain configuration and security posture of information systems through continuous monitoring and routine security events/reporting Provide networking support to on-premises infrastructure Understanding and familiarity of Linux OS and virtual networking Participate in project planning using Agile methodology REQUIRED CERTIFICATION(s) CompTIA Security+ CE Windows or Linux OS certification SECURITY CLEARANCE Active Secret Security Clearance with ability More ❯

continual process improvements. • Generate weekly, monthly, and yearly metrics reports. • Learning, supporting, and training users on different types of digitization hardware. Mandatory Skills • Must have AWS experience • Must have Linux experience • Patch and maintain system's databases, to include RDS, MySQL, and Oracle • Experience using a scripting language. • Demonstrated ability to monitor and troubleshoot enterprise workflow applications, to include: installing More ❯

System Administrator (Linux/Storage) Lead Engineer Step 1 Schriever Space Force Base Colorado Springs, CO HX5 is an award-winning provider of engineering, research and development, and technical services to clients such as NASA and the Department of Defense. Founded in 2004, HX5 is a fast-growing veteran- and woman-owned company with locations nationwide. HX5 is currently seeking … a qualified System Administrator (Linux/Storage) tosupport the Missile Defense Agency (MDA) on the Integrated Research and Development for Enterprise Solutions (IRES) contract at Schriever Space Force Base in Colorado Springs, CO. Essential Duties and Responsibilities: Build, configure, deploy, administer, maintain and troubleshoot virtual and physical servers/systems. Build, configure, deploy, administer, maintain and troubleshoot storage systems/ More ❯

Principal Systems Engineer, Linux McLean, VA The Program is comprised of Linux (80%), Windows (20%), virtualization, storage, network, HW, and data center engineers that works as a team and offers rewarding opportunities to think outside the box in order to deliver innovative and sustainable IT environments to our customers. The System Administrators work both independently and as a member of … an integrated product team supporting a wide variety of basic and complex computing and network configurations and must have proven Linux experience. The on-site system administrator will support the installation, configuration, maintenance, failure analysis and recovery, performance monitoring, data storage management, and security management of the data center environment. The system administrator will have experience in at least one … preferably two, scripting languages (shell, Perl, Powershell, Python, etc.) and shall have proven experience administering Linux operating systems in the conduct of their duties. The right candidate will have proven experience in problem solving. Mandatory Skills : - Architecting, deploying, and managing large Linux networked environments including deployment and configuration -Installing, configuring, updating and removing system and application software -Hardening Linux server More ❯

Linux Systems Administrator - Nottingham (Hybrid) £40,000 - £45,000 + On-Call Allowance (£2,000-£3,000) Hours: Monday-Friday, 9 AM - 5 PM On-Call: 1 week in every 3 We're hiring a Linux Systems Administrator to act as the final point of technical escalation for a well-established support function in Nottingham. This hybrid role offers a … mix of hands-on system administration, project delivery, and strategic problem-solving across a modern tech stack. If you're confident in RedHat Linux, automation, cloud infrastructure, and enjoy taking ownership of critical issues - this is for you. ?? Key Responsibilities: Administer and maintain Linux systems across a hybrid infrastructure Act as the final line of support escalation for complex infrastructure … and manage network infrastructure - Cisco switches, VLANs, firewalls Support backup (Rubrik), DR (Zerto), and monitoring tools (Dynatrace, Zabbix, Grafana) What We're Looking For: Strong hands-on experience with Linux in enterprise environments Solid background in escalated infrastructure support (3rd/4th line) Scripting and automation skills (Bash, Python, Terraform) Exposure to cloud services (AWS, Azure) and identity platforms (Okta More ❯

area. Description: • Apply PeopleTools patches & upgrades using delivered Oracle Support DPK software & PeopleSoft Change Assistant • Aapply necessary patches to underlying PeopleSoft technology including Java, WebLogic, Tuxedo on Windows/Linux • Administer PeopleSoft HCM on Oracle Database on Linux • Administer PeopleSoft PeopleTools on Windows Server 2019 • Apply PeopleSoft Update Manager (PUM) packages to the PeopleSoft HCM Application using Change Assistant • Create …/maintain scripts to start/stop/restart PeopleSoft services on Linux • Configure and administer Phire • Manage and maintain SSL certificates for production and non-production sites • Manage and patch Red Hat Linux Enterprise 8 Qualifications: • Bachelor's degree required with 7 years or more of experience. • Strong experience with Red Hat Enterprise Linux (RHEL) • Strong experience with PeopleSoft … Technical Architecture • Strong experience with PeopleSoft Administration • Experience configuring Phire • Familiar with Elasticsearch and Opensearch on Linux • At least 2 years of experience with AWS cloud engineering and Docker containerization Clearance: Active/current Top-Secret clearance required Salary and Benefit Information: Pay Range $163,000 - $173,000 The pay range for this job level is a general guideline and More ❯

and upskill in a financial organization 5 days on site in London are essential About Our Client Quantitative investment firm Job Description The job provides exposure to: A large, Linux-centric, multi-tenant public cloud environment Configuration management tools Heavy use of cloud-managed services (DBaaS, IaaS, etc.) to offload undifferentiated maintenance work from the team Databases of various shapes … and sizes, including relational databases, columnar databases, NoSQL, etc. User-facing systems in various shapes and sizes (Windows, Macs, Linux endpoints, physical and virtual) A SaaS-heavy corporate environment that favours flexibility and agility over legacy on-premise technologies Cloud video-conferencing and phone systems Various storage technologies including object storage, file share systems, and cloud-based platforms such as … Sharepoint Customer facing experience, internal and/or external demanding stakeholders The Successful Applicant Desired Skills, Qualifications and Experience: Server administration - Windows and Linux Public cloud (particularly AWS, Azure beneficial too) Scripting/programming (Powershell, Python, Bash, etc.) Mobile device management controls (MDM/MAM) Video conference and phone systems Desktop support across multiple operating systems - Windows, Mac and Linux More ❯

Troubleshoot and resolve hardware, software, network issues and trade-floor specific applications. Client Details Quantitative investment firm Description The job provides exposure to: A large, Linux-centric, multi-tenant public cloud environment Configuration management tools Heavy use of cloud-managed services (DBaaS, IaaS, etc.) to offload undifferentiated maintenance work from the team Databases of various shapes and sizes, including relational … databases, columnar databases, NoSQL, etc. User-facing systems in various shapes and sizes (Windows, Macs, Linux endpoints, physical and virtual) A SaaS-heavy corporate environment that favours flexibility and agility over legacy on-premise technologies Cloud video-conferencing and phone systems Various storage technologies including object storage, file share systems, and cloud-based platforms such as Sharepoint Customer facing experience … internal and/or external demanding stakeholders Profile Desired Skills, Qualifications and Experience: Server administration - Windows and Linux Public cloud (particularly AWS, Azure beneficial too) Scripting/programming (Powershell, Python, Bash, etc.) Mobile device management controls (MDM/MAM) Video conference and phone systems Desktop support across multiple operating systems - Windows, Mac and Linux White glove, high-touch user support More ❯

used include Fortran, C, C++, Python, Java, as well as GUI related technologies. Experience with X-Midas is highly desired. MATLAB is a strong 2nd preference. Operating systems include Linux, VMS, Digital Unix, Solaris, and Windows. Required Bachelor's Degree in Electrical Engineer, Computer Science, or related field. Experienced in LINUX, Java, MATLAB, C, and DSP assembly languages (C/ More ❯

Experience: Extensive experience with RedHat Enterprise Linux in financial/regulated organizations Interact with application teams and other infrastructure teams Understanding of functional requirements and translation of business requirements into technical specifications Proactively identify problem situations and resolve to give maximum customer satisfaction Participate in stakeholder/delivery team calls Demonstrate analytical and problem management skills Suggest & implement industry best … practices in projects, as applicable Technical Skills: Proficient in Linux (RHEL) Operating System and Cluster environment (VCS Infoscale) Experience with DevOps tools, orchestration, and configuration management such as Ansible, Jenkins, Puppet Good scripting skills in Python, Shell, Puppet for data management tasks Experience with VMware/Virtualization/Hypervisor technologies Knowledge of networking and its relation to OS - TCP/ More ❯

a Systems Administrator to join our team in supporting one of this country's premier defense research organizations with installation, maintenance, packaging, and patching business/user applications and Linux-based computer systems. A successful candidate will should be adept at working within a small, fast-moving team and will have at least six (6) years of hands-on experience … in Red Hat Enterprise Linux and Ubuntu Linux environments, they will be adept at scripting with either Python, Bash, or Ansible. They will also have network administration experience which includes managing data center and small network configurations: switches, routers, firewalls, modern software management and monitoring tools, some knowledge of automation technique. System administration: Aquila team members experience the opportunity to … experience: Experience with managing classified IT systems Experience and familiarity with multiple operating systems such as Windows Server 2012, 2016 and 2019, Windows 7 and 10, Red Hat Enterprise Linux, Ubuntu Experience maintaining directory services. (e.g., Microsoft Active Directory, LDAP, etc.). Experience machines. (e.g., Microsoft Hyper-V, VMWare vSphere, Citrix XenDesktop/Server, Amazon Elastic Compute Cloud, etc.). More ❯