UNKNOWN

ADAPTED_NOW

YEAR

With a global customer base including all sectors, from Fortune 500 to up-and-coming startups, we over diverse product lines including, but not limited to, Cloud Services, Artificial Intelligence, Storage, Networking, Supercomputing, and Digital Transformation offerings. Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal.

Jobot is on a mission to connect good people with good jobs. By combining AI-powered technology with the expertise of Jobot Pros, our experienced recruiters, we help you find career opportunities that align with your goals and values.
Founded in 2018 and employee-owned since 2024, Jobot is committed to fostering a culture of kindness, respect, innovation, and connection.  As an industry leader, we’ve been recognized as a top workplace by Forbes, Fortune, USA Today, and Staffing Industry Analysts (SIA).
Ready to find a good job? Create your profile today at Jobot.com 🤖

Jobot

HPC Linux Systems Administrator - Top Secret Clearance

FEED

Administer and troubleshoot Active Directory, DNS, DHCP, file servers, virtualization platforms, and Layer 2 network switching , including VLAN configuration, TCP/IP connectivity, and switch port administration in an air-gapped environment. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com .

Everything we do is built on our commitment to do the right thing for our customers, our employees, and our communities. Learn more about the values and culture that are the foundations of our business.

Leidos

Linux and Windows Systems Administrator

Appcast Exclusive 1

The System Administrator VI serves as a senior technical expert and Enterprise Systems Subject Matter Expert (SME), responsible for the architecture, resilience, operation, and long-term strategy of enterprise systems supporting a shared services data center environment. This role provides advanced Tier II/III support, leads complex projects, and partners directly with federal stakeholders to ensure secure, scalable, and reliable IT operations.

NuAxis Innovations

System Administrator VI

The position also serves as a Subject Matter Expert (SME) for shared services datacenter initiatives and leads complex technical projects across teams. Coordinate with Network, Security, and Datacenter teams to resolve complex issues.

System Administrator IV

Slurm-Based Scheduler Administration Serve as the primary subject matter expert for the Slurm workload manager; manage partition configurations, node scheduling policies, fairshare/priority weighting, reservation management, and Quality of Service (QoS) tiers. Linux Systems Administration Manage OS-level configuration, patching, and hardening of HPC compute nodes, login nodes, and head nodes; ensure stability and security compliance in coordination with DT's cybersecurity policies.

US Tech Solutions, Inc.

HPC Systems & Scheduler Administrator #26-27411

US Tech Solutions

Knowledge of DataGuard, database backup and recovery procedures, access security, database integrity, database performance tuning, physical data storage design, and storage management. This policy shall apply to all employment actions, including but not limited to recruitment, hiring, upgrading, promotion, transfer, demotion, layoff, recall, termination, rates of pay or other forms of compensation and selection for training, including apprenticeship, at all levels of employment.

HOUR

CAI is a global technology services firm with over 8,500 associates worldwide and a yearly revenue of $1 billion+. We have over 40 years of excellence in uniting talent and technology to power the possible for our clients, colleagues, and communities. As a privately held company, we have the freedom and focus to do what is right—whatever it takes. Our tailor-made solutions create lasting results across the public and commercial sectors, and we are trailblazers in bringing neurodiversity to the enterprise.
Learn how CAI powers the possible at <a href="https://urldefense.com/v3/__https:/www.cai.io/__;!!D1XWH5In!W4fDETkloyW4Xa-AUPmkOYLNe19WOZva811lQL0Fmd6NSb6Z4Fdv6_Xuex3ne2wpj1XTJajiLZIAdxSO_wcYSZS6Vvm1FQ$">www.cai.io</a>
<p style="margin-top: 0; background-image: initial; background-size: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: rgba(255, 255, 255, 1)">

Database Administrator

This policy shall apply to all employment actions, including but not limited to recruitment, hiring, upgrading, promotion, transfer, demotion, layoff, recall, termination, rates of pay or other forms of compensation and selection for training, including apprenticeship, at all levels of employment. Support CMS, ONC, Prior Authorization, Patient Access, Provider Access, Payer-to-Payer, and BCBSA Interoperability programs.

Smile CDR Administrator

This role supports Microsoft and Linux platforms, virtualization, enterprise storage, backup and recovery, and security initiatives while serving as a Subject Matter Expert (SME) for shared services enterprise datacenter projects. Serves as a Senior Systems Administrator providing advanced technical leadership, design, optimization, and operational support for enterprise servers and datacenter environments.

System Administrator V

Working knowledge of AWS security services, including IAM, CloudTrail, CloudWatch, Security Hub, GuardDuty, Systems Manager, KMS, and VPC security controls. In this role, you'll help secure and sustain AWS cloud environments by managing security controls, identifying vulnerabilities, coordinating remediation, and supporting continuous compliance monitoring.

Cloud Security Administrator

Activities that this position will execute include system administration for all Tenable ACAS Red Hat Enterprise Linux (RHEL) servers, performing systems analysis, modifying / updating, troubleshooting Tenable applications based on results of analysis, deployment of application and tools, performing testing of deployed application and tools, and communicating updates to Tenable ACAS Lead and customers as required. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com .

Tenable RHEL ACAS Administrator

If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com . September 9, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Splunk Enterprise and Enterprise Security Administrator

If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com . August 31, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Splunk Administrator

Manage partition configurations, node scheduling policies, fairshare/priority weighting, reservation management, and Quality of Service (QoS) tiers. Manage OS-level configuration, patching, and hardening of HPC compute nodes, login nodes, and head nodes.

Axelon

HPC Systems & Scheduler Administrator

In this role, you will apply Risk Management Framework (RMF) principles, develop new IT capabilities in secure networks, and provide advanced system administration across complex classified infrastructures, helping drive innovation, security, and operational excellence. Have demonstrated experience working with the following operating systems and technologies: Windows Server 2022, Windows 11, and Red Hat Enterprise Linux 8, 9, and 10 or greater, Active Directory integration and authentication services, and DNS, Group Policy and cross-platform access issues.

Johns Hopkins Applied Physics Laboratory (APL)

Linux System Administrator

Appcast PX 2

Monitor, triage, and investigate alerts from Security Information and Event Management (SIEM) platforms, Endpoint Detection and Response (EDR) tools, intrusion detection and prevention systems (IDS/IPS), authentication logs, NetFlow, packet capture, cloud-security tools, vulnerability data, and other available security sensors. Bachelor’s degree in cybersecurity, information technology, computer science, intelligence studies, or a related technical discipline, and 4-8 years of relevant experience; or an equivalent combination of relevant military service, cybersecurity education, certifications, and professional experience.

SOC Analyst

Experience 10+ years of IT experience, with significant experience in enterprise architecture, solution architecture, or Oracle database architecture. System One IT is staffing a direct-hire opening for a Senior Oracle Enterprise Architect with a respected systems integrator, supporting a civilian federal end-customer.

Every day, System One focuses on services and solutions that require a high degree of specialization, in-demand technical skills, and large-scale operational expertise. We are essential partners to those on the front lines of our nation’s most critical infrastructure, technology, and life sciences initiatives. 
Founded more than 40 years ago as a staffing partner to the engineering industry, today System One is a diversified organization operating in over 50 locations and putting more than 9,000 people to work in the United States, Canada, and the United Kingdom.

System One

Senior Oracle Database Enterprise Architect

Location: Springfield, VA Clearance: Must have active TS/SCI with CI Poly to apply Program Description:Cohere Technology provides Red Hat Enterprise Linux (RHEL) based High Performance Computing (HPC) services through the HPC lifecycle for computational requirements, architecture, acquisition, and operations to federal government customers. SummaryYou will be an active member of the Enterprise MLS team working many and varied Red Hat Enterprise Linux (RHEL) SE Linux based configuration, policy, and development projects including full automation of configuration deployments.

Cohere Technology Group LLC

SE Linux Based MLS SME Linux Administrator

ea_via_bold

Northrop Grumman is seeking a Linux Systems Administrator/Principal Systems Administrator to maintain and enhance Linux Systems and Infrastructure for the National Air and Space Intelligence Center (NASIC) at Wright Patterson Air Force Base in Dayton, OH. NASIC is responsible for creating all-source intelligence defining the present and future air, air defense, cyber, space and ballistic missile threats to enable military operations, force modernization, and policy making.

Northrop Grumman solves the toughest problems in space, aeronautics, defense and cyberspace to meet the ever-evolving needs of our customers worldwide. Our 90,000 employees are Defining Possible every day using science, technology and engineering to create and deliver advanced systems, products and services. Northrop Grumman careers and internships are as varied as your interests, with a lifetime of potential that will allow you to work together with people from many backgrounds, personal passions and disciplines. 
 
© 2020 Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. U.S. Citizenship is required for most positions. For our complete EEO/AA and Pay Transparency statement, please visit www.northropgrumman.com/EEO

Northrop Grumman Corp

Linux Systems Administrator/ Principal Linux Systems Administrator (AHT)

The ideal candidate will be responsible for installing, configuring, and maintaining Red Hat Linux systems in a fast-paced environment. The Red Hat Linux Administrator will work closely with the IT team to ensure the stability and security of our Linux infrastructure.

Ascension Federal Services

Red Hat Linux Administrator

2. Neo4j and Cassandra are the highest-value platform combination When asked where the current gap is, the manager specifically said he needs Neo4j and Cassandra with automation skills. The Hiring Manager said the role is 40% DBA work and 60% automation work, noting that if it were only automation, he would hire a developer, but he needs a DBA who already understands database operations and can automate that work.

Linux Administrator Jobs in the United States

HPC Linux Systems Administrator - Top Secret Clearance Jobot

Linux and Windows Systems Administrator Leidos

System Administrator VI NuAxis Innovations

System Administrator IV NuAxis Innovations

HPC Systems & Scheduler Administrator #26-27411 US Tech Solutions, Inc.

Database Administrator CAI

Smile CDR Administrator CAI

System Administrator V NuAxis Innovations

Cloud Security Administrator Leidos

Tenable RHEL ACAS Administrator Leidos

Splunk Enterprise and Enterprise Security Administrator Leidos

Splunk Administrator Leidos

HPC Systems & Scheduler Administrator Axelon

Linux System Administrator Johns Hopkins Applied Physics Laboratory (APL)

SOC Analyst Leidos

Senior Oracle Database Enterprise Architect System One

SE Linux Based MLS SME Linux Administrator Cohere Technology Group LLC

Linux Systems Administrator/ Principal Linux Systems Administrator (AHT) Northrop Grumman Corp

Red Hat Linux Administrator Ascension Federal Services

NoSQL DBA w/ Linux VM or Linux Virtual Machine Expert In Recruitment Solutions

Similar Job Searches

See More Jobs

Stand out to leading employers.