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Linux Administrator Jobs in the United States

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Systems Administrator SOS International LLC

Comprehensive knowledge of the principles, methods, and techniques used in IT systems administration, troubleshooting and support with emphasis on Microsoft Windows Server technologies including Active Directory (Domain Controllers, User/Group Accounts, Computer Objects, GPO's), DNS, DHCP, File/Print, Exchange, SharePoint, SQL Server, WSUS. Your role includes installing, updating and monitoring server and hosted applications including network-attached clients, user/service accounts and related component systems in a virtual infrastructure.

21 days ago

Systems Administrator Ukpeagvik Inupiat Corp

Dahlgren, VA

Ability to assess, harden, and mitigate cyber vulnerabilities through various tools such as Assured Compliance Assessment Solution (ACAS)/Nessus vulnerability scanner, Security Technical Implementation Guides (STIGs), and Security Requirement Guides (SRGs) related to COTS operating systems, applications, and network infrastructure devices. In depth understanding of networking concepts, hardware, and software with ability to provide system administration to equipment segregated from the internet (TCP/IP, routing, firewall configurations, CISCO switches, etc.).

30+ days ago

Senior System Administrator / Mission Support Operator (MSO) GD Information Technology

Livermore, California

As a Senior System Administrator / Mission Support Operator (MSO) Fellow , you will learn how Tier 1 and Tier 2 support is executed in live operational environments, how high‑priority systems are monitored using enterprise tools such as SolarWinds, Splunk, and Wireshark , and how rapid incident response is performed to maintain continuity across multi‑domain classified networks. Through the Department of War (DoW) SkillBridge Program, GDIT offers transitioning service members the opportunity to gain hands‑on training and professional experience as a Senior System Administrator / Mission Support Operator (MSO) Fellow , supporting mission‑critical IT operations within a classified, 24/7 enterprise environment.

15 days ago

MySQL Database Administrator - TS/SCI with Polygraph GD Information Technology

Bethesda, Maryland

Education : Bachelors Degree (Computer Engineering, Computer Science, Electrical Engineering, Information Systems, Information Technology, Cybersecurity, or a closely related discipline) or the equivalent combination of education, technical certifications or training, or work experience. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available.

6 days ago

Database Administrator III The University of Kansas Health System

Shawnee Mission, Kansas

The DBA III is the subject matter expert on database technologies and will work closely with Data Architecture, Business Intelligence, Software Engineering and Data Warehousing teams. Twelve (12) years of Database Administrator experience with SQL 2012 – SQL 2016 in a production environment or Epic Intersystems Cache Database server.

7 days ago

Cloud Administrator AI/ML TS/SCI w Poly Peraton Inc

Laurel, MD

$146,000–$234,000 / year

Benefits: Peraton offers enhanced benefits to employees supporting this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap, and eligibility to participate in an attractive bonus plan. Shall have demonstrated ability to work within a pre-defined mission focused team structure, follow SOP''s, communicate effectively, accept constructive feedback, and receive technical guidance and advice from senior level technical resources.

30+ days ago

Cloud Administrator AI/ML TS./SCI w Poly Peraton Inc

Laurel, MD

$146,000–$234,000 / year

Analyze and provide solutions for project life cycle design including interviewing customers, clearly articulating customer requirements to design team, creating visual designs/prototypes, presenting information to customers, and helping solve and clarify questions and problems. Benefits: Peraton offers enhanced benefits to employees supporting this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap, and eligibility to participate in an attractive bonus plan.

30+ days ago

Helpdesk Administrator (Digital Ecosystem) PMAT Inc.

San Diego, CA

Responsibilities: Provide helpdesk and end-user support by responding to technical issues, troubleshooting user problems, documenting resolutions, and escalating complex issues to system administrators, cybersecurity engineers, or other technical teams as needed. This role will work alongside system administrators, cybersecurity engineers, infrastructure personnel, and program stakeholders to help maintain reliable, secure, and responsive IT support for users and technical teams.

30+ days ago

IT Systems Administrator - Millennium Space Systems The Boeing Co

El Segundo, CA

$102,850–$151,250 / year

Millennium Space Systems also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. Drug Free Workplace: Boeing is a Drug Free Workplace where post offer applicants and employees are subject to testing for marijuana, cocaine, opioids, amphetamines, PCP, and alcohol when criteria is met as outlined in our policies.

30+ days ago

SharePoint Administrator - TS/SCI with Polygraph GD Information Technology

McLean, Virginia

To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave.

9 days ago

Multi Functional Info Systems Analyst Sr (Raf Lakenheath Alis Administrator) Lockheed Martin Corporation

Greenville, SC

$85,300–$158,300 / year

This is an operational support role to an active fighter unit, the selected candidate may be required to work at deployed CONUS/OCONUS locations, support rotating shifts, and work over 40 hours per week-which may include weekends-as dictated by mission requirements. At Lockheed Martin Aeronautics we value your unique skills and expertise and we aim to give back continuously by offering a wide variety of benefits and amenities to help our employees live flexible, healthy, and fulfilling lives at and outside of work.

7 days ago

Multi Functional Info Systems Analyst Sr (RAF Lakenheath ALIS Administrator) Lockheed Martin Corp

Greenville, SC

$85,300–$158,300 / year

30+ days ago

IT Systems Administrator EquipmentShare.com Inc

Columbia, MO

This position requires someone who is comfortable working across endpoint management, identity and access management, cloud platforms, operating systems, and networking while collaborating with cross-functional teams to maintain a secure, reliable, and scalable IT environment. The ideal candidate is a well-rounded infrastructure professional who can navigate EquipmentShare''s diverse technology stack, troubleshoot across multiple platforms, and independently drive issues to resolution.

12 days ago

Clinical Systems Administrator Kootenai Health

Coeur d'Alene, ID

We have been recognized with many accolades and distinctions, including being a Gallup Great Workplace, No. 1 Best Place to Work in Large Healthcare Organizations, and Magnet Status for Nursing Excellence. Supports cybersecurity efforts by applying security patches, managing device segmentation, and monitoring for vulnerabilities across supported networks.

12 days ago

NPES Systems Administrator Quadrant, Inc.

Blue Ridge Summit, PA

Quick Apply

The position performs systems operations, administration, and maintenance; client and server operations; backup and recovery; storage administration; system patching; troubleshooting; technical documentation; configuration management; and cybersecurity compliance activities necessary to maintain the availability and operational readiness of the NPES environment. This roles supports the Joint Staff Support Center (JSSC) Information Technology Support Services (JSSC-ITSS) contract as a Nuclear Planning and Execution System (NPES) Systems Administrator at the Raven Rock Mountain Complex (RRMC), Blue Ridge Summit, PA.

12 days ago

SITEC PKI Systems Administrator MacDill AFB Peraton Inc

$80,000–$128,000 / year

The purpose of the Special Operations Forces Information Technology Enterprise Contract (SITEC) 3 Enterprise Operations and Maintenance (EOM) Task Order (TO) is to provide USSOCOM, its Component Commands, its Theater Special Operations Commands (TSOCs), and its deployed forces with Operations and Maintenance (O&M) services to maintain Network Operations (NetOps); maintain systems and network infrastructure; provide end user and common device support; provide configuration, change, license, and asset management; conduct training, and perform Install, Move, Add, Change (IMACs) services. The candidate will support an enterprise infrastructure spanning four distinct networks, including Online Certificate Status Protocol (OCSP) responders, physical Hardware Security Modules (HSMs), and certificate distribution services supporting over 85,000 globally separated users.

11 days ago

Systems / Network Administrator Lead Computer World Services Corp

Chicago, IL

$115,000–$155,000 / year

Minimum five (5) years recent experience managing enterprise IT teams in geographically dispersed locations supporting operations and maintenance of enterprise servers (physical and virtual), operating systems (Windows and UNIX/Linux), databases, VMware ESXi, Storage Area Networks (SANs), collaboration tools, enterprise applications, scripting, and enterprise security. CWS seeks an experienced Systems / Network Administrator Lead to lead enterprise systems and network administration supporting the U.S. Military Entrance Processing Command (USMEPCOM) Enterprise Network for Lifecycle, Information Support, and Technology (ENLIST) program.

30+ days ago

Systems Administrator II TransCore Partners LLC

Houston, TX

The Systems Administrator II works both independently and in coordination with the System Administration Team, Network Team, Application Teams, and Information Security Team to identify, troubleshoot, and resolve technical issues in a timely manner. This position provides day-to-day technical support for existing customer installations and new deployments of proprietary multi-server tolling applications while ensuring system availability, performance, and security.

30+ days ago

Cybersecurity Administrator Altercare

North Canton, Ohio

The Cybersecurity Administrator works closely with Systems Administrators, Network Administrators, Desktop Support staff, and third-party security providers to ensure that servers, endpoints, network devices, applications, and cloud services remain secure, compliant, and operational. About the Schroer Group The Schroer Group is the parent organization of five family-owned, outcome-based companies, including Altercare Integrated Health Services, Absolute Health Services, Avalon Foodservice, Leverage Purchasing Group and Valor Health Plan.

30+ days ago

IT Systems Administrator Cristo Rey Jesuit

Houston, TX

Full time

Position Overview: Cristo Rey Jesuit College Preparatory School of Houston seeks an experienced, service-oriented IT Systems Administrator to support the technology needs of our students, faculty, and staff and help maintain the school’s technology infrastructure. The Systems Administrator will work closely with the Director of Information Technology and will have opportunities to assume increasing responsibility for the school's technology operations, infrastructure, cybersecurity, systems administration, and long-term technology planning.

30+ days ago

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Linux Administrator Jobs in the United States

Systems Administrator SOS International LLC

Systems Administrator Ukpeagvik Inupiat Corp

Senior System Administrator / Mission Support Operator (MSO) GD Information Technology

MySQL Database Administrator - TS/SCI with Polygraph GD Information Technology

Database Administrator III The University of Kansas Health System

Cloud Administrator AI/ML TS/SCI w Poly Peraton Inc

Cloud Administrator AI/ML TS./SCI w Poly Peraton Inc

Helpdesk Administrator (Digital Ecosystem) PMAT Inc.

IT Systems Administrator - Millennium Space Systems The Boeing Co

SharePoint Administrator - TS/SCI with Polygraph GD Information Technology

Multi Functional Info Systems Analyst Sr (Raf Lakenheath Alis Administrator) Lockheed Martin Corporation

Multi Functional Info Systems Analyst Sr (RAF Lakenheath ALIS Administrator) Lockheed Martin Corp

IT Systems Administrator EquipmentShare.com Inc

Clinical Systems Administrator Kootenai Health

NPES Systems Administrator Quadrant, Inc.

SITEC PKI Systems Administrator MacDill AFB Peraton Inc

Systems / Network Administrator Lead Computer World Services Corp

Systems Administrator II TransCore Partners LLC

Cybersecurity Administrator Altercare

IT Systems Administrator Cristo Rey Jesuit

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