Unix Administrator Jobs in the United States

OneMain Financial

$95000 - $114000

Baltimore, MD

Partner with application and analytics teams (e.g., Glue, DBT, Databricks, Power BI, Looker) to deliver secure, performant integrations and reliable data products. OneMain Financial (NYSE: OMF) is the leader in offering nonprime customers responsible access to credit and is dedicated to improving the financial well-being of hardworking Americans.

Icon International Group LLC

Englewood Cliffs, NJ

Strong MySQL + PostgreSQL, Open-source DBA experience, Production troubleshooting under pressure, AWS (EC2, RDS) knowledge, Automation exposure (Ansible, CloudFormation) ACID, normalization, transactions mastery, Fast decision-maker , Clear communicator. Candidates should have hands-on experience deploying, migrating, and experiencing blue-green deployments for upgrades and planning on EC2, AWS Aurora, RDS MySQL, and PostgreSQL.

Jobot

$100000 - $150000

Fullerton, CA

Certifications in Microsoft Certified: Azure Administrator Associate, CompTIA Network+, CompTIA Security+, Cisco Certified Network Associate (CCNA), and Certified Information Systems Security Professional (CISSP) will be an added advantage. 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.

Southwest Research Institute

San Antonio, TX

Who We Are: Join the SwRI ITC Support Services team that provides Oracle database support for the Institute Enterprise Resources Planning (ERP), and other databases as needed. In lieu of a Bachelors degree, a High School Diploma or equivalent with continuing education and related certifications plus 10 years of directly related professional level experience is required.

JT4 LLC

Las Vegas, NV

Some jobs may require a candidate to be eligible for a government security clearance, state-issued driver's license or other licenses / certifications and the inability to obtain and maintain the required clearance, license or certification may affect an employee's ability to maintain employment. JT4 develops and maintains realistic, integrated test and training environments and prepares our nation's war-fighting aircraft, weapons systems, and aircrews for today's missions and tomorrow's global challenges.

JT4 LLC

Las Vegas, NV

Some jobs may require a candidate to be eligible for a government security clearance, state-issued driver's license or other licenses/certification and the inability to obtain and maintain the required clearance, license or certification may affect an employee's ability to maintain employment. In addition, a Systems Administrator III must possess the following qualifications: Must have specific experience in the use of MS window server environments and various computer-aided design / computer-aided manufacturing (CAD/CAM), database, MS Office and Web enabled applications.

UNITED STATES BANKRUPTCY COURT-UTAH

Salt Lake City, UT

Installs, configures, maintains, and monitors Linux and Red Hat Enterprise Linux servers, as well as cloud-based and virtual machines (20+ VMs), ensuring system stability, backups, replication, and disaster recovery. Include, but are not limited to the following: Serves as the primary technical administrator for CM/ECF and related applications, including installation, upgrades, database maintenance, customizations, security, and technical support.

Bowhead / UIC Technical Services

Dahlgren, VA

Will work as part of a team responsible for administration and management of servers, end-user workstations, and potentially clustered systems operating in both unclassified and classified network environments. Participate in planning new hardware acquisitions, developing operating policy, interacting with vendors, educating customers, and communicating and collaborating with other projects within the organization.

HTC Global Services Inc

Aliso Viejo, CA

This role is ideal for someone who enjoys working across Linux, Windows Server, storage, virtualization, and infrastructure upgrades and wants to play a key role in keeping systems secure, stable, and high performing. You will help drive major infrastructure initiatives, including Linux and Windows administration, storage and backup support, Hyper-V environment setup, hardware integration, system optimization, and troubleshooting complex issues.

4 Consulting Inc

Cedar Park, TX

To develop such highly complex web applications we need professionals with broad range of experience and skills ranging from subject matter experts, computer programmers, project managers, tester, systems analysts and others. We partner with big 3 consulting firms to design, develop, and maintain complex, heterogeneous, and client facing web-based automation systems that deliver social and welfare benefits to millions of families, nationwide.

JT4 LLC

North Las Vegas, NV

The Joint Data Link Network Administrator (JDNA) is responsible to the Joint Interface Control Cell (JICC) watch officer, Joint Data Link Network Operations Officer (JDNO) and Joint Interface Control Officer (JICO) for all system administrators matters for the JICC computer systems. Configures and operates Link-16 host and auxiliary equipment such as Joint Range Extension (JRE), Link monitoring and Management Tool (LMMT), Joint Tactical Radio System (JTRS), Situational Awareness Data link (SADL) and Terminal Housing Case (THC).

Isospin Technologies, LLC

Washington, DC

Work closely with the Technical Lead and project teams to coordinate OBBBA-related configuration changes, manage migrations across environments, and ensure timely completion of all implementation activities within established project timelines while balancing ongoing payroll operations and competing priorities. • Perform installation, maintenance, and configuration of PeopleSoft, PeopleTools, and associated Middleware infrastructure in support of OBBBA-driven payroll processing, pay rule adjustments, overtime calculations, tax updates, and related reporting changes.

Link Technologies

Las Vegas, NV

Minimum of eight (8) years Microsoft SQL Server experience with strong knowledge and experience on Microsoft SQL Server technology architecture including high availability, encryption at rest, and log shipping. Primary responsibility is for the day-to-day management of numerous SQL server databases and instances on Microsoft Windows environments including Microsoft SQL server 2019 and 2022.

Axelon Services Corporation

Oakland, CA

Diagnose and resolve complex database performance issues involving SQL tuning, indexing strategies, execution plans, database parameters, and storage optimization. - Oversee endtoend administration of Oracle, PostgreSQL, and SQL Server database environments, ensuring high availability, security, and optimal performance.

US Tech Solutions, Inc.

$100000 - $120000

Chandler, AZ

Job Description: We are looking for a Senior Messaging & Distributed Platform Administrator to provide operational and technical support across IBM MQ, IIB/ACE, Confluent Kafka, TIBCO, and distributed database platforms including Redis and Cassandra. Messaging & Middleware: Administer:IBM MQ queue managers, channels, and message flows across Linux and Windows; manage IIB / ACE broker deployments.

Staffing Solutions Usa, Inc.

Livingston, NJ

One of our financial clients in New Jersey is looking for a Linux Systems & Applications Support Administrator to be part of their System & Applications Support Engineering team that provides 24/7 support of the company's global back-office, production & trading systems infrastructure. · Perform trace analysis using TCPdump, Snoop, and Ethereal. · Plan and document Change Requests, as required to implement Application and Server upgrades and changes.

Uline

Pleasant Prairie, WI

As a Senior Database Administrator at Uline, you’ll leverage your expertise in DataStax and Cassandra to design, develop, and enhance critical systems that keep our growing North American operations running smoothly. Uline, a family-owned company, is North America’s leading distributor of shipping, industrial, and packaging materials with over 9,800 employees across 14 locations.

Tech Mahindra Limited

Middletown, NJ

The ideal candidate will have extensive experience in Oracle Database Administration, with a proven track record of managing, optimizing, and securing Oracle databases in a complex environment. Job Summary: We are seeking a highly skilled Senior Oracle Database Administrator (ADBA) to join our Infrastructure Management team.

Kforce Inc.

$50 - $60

Coral Gables, FL

Summary: These talented sources are the drivers of analyzing, designing, developing, testing, debugging, implementing, and integrating new or existing operational efficiencies into the technical infrastructure and existing business processes. Experience working directly with customers, resolving database, systems and infrastructure-related issues and also providing systems architecture leadership is required.

ABCS, Inc.

$30 - $34

Phoenix, AZ

Potential certifications: AWS, Microsoft, or network-related certs, A+, Network+, Security+, any Microsoft Certs. Minimum 3-5 years working experience in an IT field.

Hologic

$137800 - $229700

Marlborough, MA

Deep knowledge of server technologies (Windows Server, Linux, UNIX), virtualization platforms (VMware, Hyper-V), and cloud services (AWS, Azure, Google Cloud). Bachelor’s degree in Computer Science, Information Technology, or a related field, with at least 8 years of progressive experience in server operations, IT infrastructure management, or related fields.

Knexus

Omaha, NE

This role provides administration, operations, maintenance, troubleshooting, and security compliance support across multiple enterprise enclaves, including NIPR, SIPR, TS LAN, JWICS, and other classified environments. Overview: S4 is seeking an experienced Senior Unix/Linux OS Administrator to support the USSTRATCOM IT Enterprise at Offutt AFB.

S4 Inc.

Omaha, NE

This role provides administration, operations, maintenance, troubleshooting, and security compliance support across multiple enterprise enclaves, including NIPR, SIPR, TS LAN, JWICS, and other classified environments. Overview: S4 is seeking an experienced Senior Unix/Linux OS Administrator to support the USSTRATCOM IT Enterprise at Offutt AFB.

ASM Research, An Accenture Federal Services Company

Olympia, WA

Optimizes backup processes; optimizes disk space allocations; performs installations and upgrades; monitors and reviews logs; applies appropriate operating system security measures; designs and implements high availability solutions and plans data migrations between systems. DLA CE Cert IA Role/Function: Server Admin UNIX/Linux Operating System **Other Job Specific Skills** + Advanced knowledge of Microsoft Operating Systems and products that include Microsoft Windows, Windows Servers, Microsoft Office365 and SharePoint, Microsoft Teams.

Booz Allen Hamilton INC.

East Port Orchard, WA

On our team, you'll work independently and as part of a team that constantly looks for ways to implement database tuning and performance optimization, perform backup and recovery, and configure database parameters. Salary at Booz Allen is determined by various factors, including but not limited to location, the individual's particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements.

SMX

$87000 - $146000

Patuxent River, MD

This individual will work alongside a team of UNIX/Linux Systems Administrators responsible for maintaining the integrity, availability, and security of mission-critical systems across Department of Defense (DoD) networks. The SMX salary determination process takes into account a number of factors, including but not limited to, geographic location, Federal Government contract labor categories, relevant prior work experience, specific skills, education and certifications.

Syntricate Technologies

Dallas, TX

Skills Required: Technical Lead - Looking for Distributed resource Proficiency in Unix Shell scripting MQ Administration for monitoring Performance optimization Understanding of the application / data flow from end to end Ability to lead project onsite offshore Understanding of FIX portal. Basic Knowledge of Core Java, Knowledge on Banking and Trading Domain.

Captivation Software

$130000 - $270000

Annapolis Junction, MD

Security Clearance: Must currently hold a Top Secret/SCI U.S. Government security clearance with a favorable Polygraph, therefore all candidates must be a U.S. citizen. Captivation is looking for software developers who can get stuff done while making a difference in support of the mission to protect our country.

Physicians Mutual Insurance Company, Inc.

Omaha, Nebraska

You will play a key role in maintaining and evolving our Unix/Linux environment, supporting application teams, and driving system reliability across the organization. This role is responsible for ensuring the stability, performance, and availability of critical distributed systems and middleware platforms that support enterprise operations.

Network Designs Inc.

Dahlgren, VA

Qualified experience with network protocols including TCP/IP and major network security tools such as firewalls; knowledge of computing and networking vulnerabilities, attack methods, and detection techniques. As a Service-Disabled Veteran-Owned Small Business (SDVOSB), NDi is dedicated to hiring veterans and providing a supportive work environment that honors their service while recognizing the unique skills and experiences they bring to our organization.

EPS Corporation

Dahlgren, VA

Job TypeFull-timeEducationSome College Coursework CompletedCareer LevelExperienced (Non-Manager)CategoryInformation TechnologyJob DescriptionEPS Corporation is seeking a highly skilled Senior Systems Administrator (Unix/Linux) to support enterprise-level networks and systems within a secure and mission-critical environment. The ideal candidate will bring deep expertise in Unix/Linux administration, network security, and performance optimization, ensuring system reliability, security, and efficiency.

EPS Corporation

Dahlgren, VA

Job TypeFull-timeEducationSome College Coursework CompletedCareer LevelExperienced (Non-Manager)CategoryInformation TechnologyJob DescriptionEPS Corporation is seeking a highly skilled Senior Systems Administrator (Unix/Linux) to support enterprise-level networks and systems within a secure and mission-critical environment. The ideal candidate will bring deep expertise in Unix/Linux administration, network security, and performance optimization, ensuring system reliability, security, and efficiency.

Work Rocket

Charlottesville, VA

This role involves troubleshooting and resolving issues related to the operating system’s servers, hardware, applications, and software, and reporting any UNIX-related server problems. Come work for a company that specializes in developing and providing cutting-edge tools and solutions for precise measurement and analysis in various scientific and industrial fields.

Maddisoft

Houston, TX, Texas

The ideal candidate will bring deep technical expertise in Linux/Unix administration, Oracle Cloud Infrastructure (OCI), and AWS or Azure, combined with proven project management experience. This dual role requires someone who can design enterprise-scale infrastructure solutions while also leading operations and administration for approximately 400 Linux servers in a high-stress, mission-critical environment.

Diverse Linx

San Jose, CA

Working knowledge of VMWare vCenter, System imaging, TCP/IP functionality, networking, Remote administration systems (iLOM, ILO or iDRAC) a mustHP & Dell rack-mount server hardware knowledge. Excellent hands on experience with RHEL/CentOS/SUSE including lvm device configuration and management, Kickstart/ Jumpstart, Yum/Satellite, networking etc.

Syntricate Technologies Inc

Dallas, TX

Basic Knowledge of Core Java, Knowledge on Banking and Trading Domain. Proficiency in Unix Shell scripting MQ Administration for monitoring Performance optimization .

Chugach Governement Solutions

$33.65 - $34.85

Seattle, WA

We are proud to have built, and continue to foster, an incredibly talented team spanning across the globe in hundreds of different fields - each team member proud to serve our country with first-class business services, while also making a difference for our Chugach shareholders. If you are looking for an opportunity to serve something bigger than yourself; if you want your day job to be one that creates meaningful value; if you are looking for an environment that highly values employees and respects individual differences - then Chugach Government Solutions may be the right fit for you!

HII Mission Technologies Division

$88168 - $110000

Beale AFB, CA

Our capabilities range from C5ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.

Diverse Linx

Phoenix, AZ

Five years UNIX Systems and Storage administration (Hitachi, infinidat) experience within large 24/7 mission critical enterprise environments. Understanding of incident management, problem management, release management and change management concepts.

Connective Business Solution

Tallahassee, FL

By applying, you will be considered for current and upcoming opportunities, and we will reach out if a role that matches your skills and qualifications becomes available.*Powered by JazzHR. Installs, configures, maintains and performs system integration testing of UNIX based operating systems, related utilities and hardware.

Sev1Tech, an ERT Company

Radford, Virginia

Experience supporting Cybersecurity patch management and Security Technical Implementation Guides (STIG), Security Requirement Guides (SRG), RMF, Security Control Assessor-Validator (SCA-V), and Cyber Operational Readiness Assessments (CORA). About Us: Founded in 2010 and recently acquired by ERT in early 2026, Sev1Tech, an ERT Company provides IT, engineering, and program management solutions delivery to critical missions across Federal and Commercial Clients.

TekSynap

Radford, Virginia

Technology moving at the speed of thought” embodies these principles – the need to nimbly utilize the best that information technology offers to meet the business needs of our Federal Government customers. Additional Job Information: TekSynap is a fast growing high-tech company that understands both the pace of technology today and the need to have a comprehensive well planned information management environment.

Sev1Tech, an ERT Company

Ft. Bragg, North Carolina

Experience supporting Cybersecurity patch management and Security Technical Implementation Guides (STIG), Security Requirement Guides (SRG), RMF, Security Control Assessor-Validator (SCA-V), and Cyber Operational Readiness Assessments (CORA). About Us: Founded in 2010 and recently acquired by ERT in early 2026, Sev1Tech, an ERT Company provides IT, engineering, and program management solutions delivery to critical missions across Federal and Commercial Clients.

Edgewater Federal Solutions, Inc.

Pocatello, Idaho

Overview: The Principal Systems Engineer II (Unix/Linux) will be responsible for design, deployment, testing, certification, patching, addressing interoperability issues, not only of the base operating system, but for all support libraries, components, and application dependencies. Edgewater Federal Solutions is ISO 9001, 20000-1, 270001 certified, appraised at CMMI Level 3 Maturity for Development and Services, and has been named in the Top Workplaces in the Greater Washington Area Small Companies for 2018 through 2025.

Patriot, LLC

Annapolis Junction, MD

Lastly, as a “verified” Service-Disabled Veteran Owned Small Business (SDVOSB) and a Maryland Department of Transportation (MDOT) Minority/Disadvantaged Business Entity (MBE/DBE), Patriot is committed to delivering the highest quality personnel, most innovative approaches wrapped in state-of-the-art solutions using the latest and most advanced technologies available. Install, configure, troubleshoot, and resolve issues related to VoIP systems, Unix/Linux/Windows servers, network connectivity, and system integrations with Active Directory, DNS, DHCP, and LDAP.

Apex Systems, Inc.

Seattle, WA

In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts.

Diverse Linx

Norcross, GA

Unix SME: Unix Subject Matter Expert (SME) responsible for providing deep technical expertise, managing Unix environments, and ensuring high availability, performance, and security. Strong expertise in Linux (RHEL, CentOS, Ubuntu) and Unix (AIX, Solaris) administration.

Integral

Radford, Virginia

Experience supporting Cybersecurity patch management and Security Technical Implementation Guides (STIG), Security Requirement Guides (SRG), RMF, Security Control Assessor-Validator (SCA-V), and Cyber Operational Readiness Assessments (CORA). Overview: The Senior UNIX System Engineer is responsible for the performance and oversight of the mixed and growing environment of Red Hat Enterprise Linux/Oracle Enterprise Linux and Solaris UNIX requirements for the U.S. Army Product Lead Acquisition, Logistics, and Technology Enterprise Systems and Services (PL ALTESS).

Diverse Linx

Chicago, IL

Disaster Recovery : Implement and manage AIX disaster recovery processes and DLPAR (Dynamic Logical Partitioning) operations using HMC (Hardware Management Console). System Installation and Patching : Install, configure, and update AIX operating systems using alt_disk_install or multibos, and troubleshoot any issues during and after patching.

Blue Origin LLC

Seattle, WA

and/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing (CDL drivers only), vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. To conform to U.S. Government commercial space technology export regulations, including the International Traffic in Arms Regulations (ITAR), 8 U.S.C. § 1324b(a)(3), applicants for employment at Blue Origin must be a U.S. citizen or national, lawfully admitted for permanent residence into the U.S. (i.e. current green card holder), or lawfully admitted as a refugee or granted asylum under 8 U.S.C. § 1157-1158.