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147 linux system administrator jobs at 102 companies in Texas

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Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
Help us #BeatIndeed & #BeatLinkedIn
1w
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HPC Linux System Administrator
Houston, Texas, United States
OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Provides engineering, technology, and mission support to government agencies.
5+ YOEBachelor's or equivalent, 5+ years experience (2+ in HPC), Linux administration, system configuration management, container-based HPC workflows, CI/CD, HPC scheduler administration, problem solving and teamwork.
RedHat-based systems, Docker, Podman, Apptainer, Luster, InfiniBand, Ansible, Foreman, SLURM, SPACK, Git, Gitlab, CI/CD
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2w
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Principal Linux System Administrator
McKinney, Texas, United States
$87k-$165k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: Provides advanced aerospace and defense systems and services.
5+ YOEActive in-scope DoD Secret clearance and U.S. citizenship required; typically requires a bachelor’s and 5 years' relevant experience; Linux and Windows administration experience; AD/VMware/system hardening/disaster recovery experience; CompTIA Security+ CE or equivalent within 6 months.
RedHat Linux, Windows, Active Directory, VMware, LDAP, SCAP, Nessus, Splunk, Symantec
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1w
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HPC Linux System Administrator
Houston, Texas, United States
OnsiteFull Time
Mclaurin Aerospace
Mclaurin Aerospace: Provides specialized aerospace engineering, research, and technical advisory services.
5+ YOE5+ years technical experience with Linux and large-scale system administration, including HPC, container workflows, CI/CD, schedulers; bachelor's degree or equivalent; strong problem solving and teamwork skills.
Docker, Podman, Apptainer, RedHat, Luster High-speed Parallel Filesystems, InfiniBand, Ansible, Foreman, SLURM, SPACK, Git, Gitlab, CI/CD
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1w
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Linux System Administrator
Allen, Texas, United States
OnsiteFull Time
PFS
PFSNYSE: GXO: Provides order fulfillment and commerce operations for global brands.
5+ YOE5+ years Linux experience (SLES, RHEL, CentOS), 2+ years Splunk admin/architect experience including Enterprise Security and PCI, basic networking knowledge, ability to pass federal Level I background check, high school diploma or GED.
Splunk, Raspberry Pi, EC2, EBS, ALB, EFS, Lambda, Connect, VMware, F5 LTM, DNS/GTM, APM, ASM
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3mo
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Senior Linux System Administrator
Austin, Texas, United States
OnsiteFull Time
TISTA Science and Technology
TISTA Science and Technology: Delivers IT solutions and professional services to federal agencies.
5+ YOE5+ years of advanced Linux system administration; expertise in enterprise Linux environments; virtualization and cloud experience; scripting/automation skills; security/compliance knowledge; RHCE/LFCS/LFCE/AWS/Azure certs preferred
Bash, Python, Ansible, Puppet, Nagios, Zabbix, Prometheus, Red Hat Enterprise Linux, Solaris, AWS, Azure
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1w
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HPC Linux System Administrator
Houston, Texas, United States
OnsiteFull Time
Jacobs
JacobsNYSE: J: Provides engineering, technical, and scientific professional services globally.
5+ YOEBachelor's or equivalent and ~5+ years experience; Linux and large-scale/HPC administration, container-based HPC workflows, CI/CD, job scheduler administration, problem solving and teamwork; US background check/citizenship may be required.
Linux, RedHat-based systems, Docker, Podman, Apptainer, Ansible, Foreman, SLURM, SPACK, Git, Gitlab, InfiniBand, CI/CD
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1mo
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Red Hat Linux System Administrator
Austin, Texas, United States
OnsiteFull Time
TISTA Science and Technology Corporation
TISTA Science and Technology Corporation: Provides technology and cybersecurity services to federal government agencies.
Experience with Linux system administration, Red Hat Enterprise Linux, scripting, networking, virtualization, and cloud platforms.
Linux, Red Hat Enterprise Linux, Shell scripting, Python, Ansible, Terraform, CI/CD, VMware, vSphere, Red Hat Virtualization, DNS, NFS, SSH, FTP, Apache, AWS, Azure, Cloud computing
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1mo
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Red Hat Linux System Administrator
San Antonio, Texas, United States
OnsiteFull Time
G6 Cyber Solutions
G6 Cyber Solutions: A technology solutions provider focused on national security and military operations.
Windows and Linux system administration; hardware/software management; patching and security; accreditation docs OV1-OV3; vulnerability scanning; CLI proficiency.
Red Hat Linux, Windows Server, STIG, SCAP, SIEM, HIDS, NIDS
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1mo
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Operations Linux System Administrator - Web/DB/Cloud
San Antonio, Texas, United States
$111k-$120k/yr OnsiteFull Time
General Dynamics Mission Systems
General Dynamics Mission SystemsNYSE: GD: Designs and manufactures defense and mission-critical technology solutions.
3+ YOEBachelor's (5+ yrs) or Master's (3+ yrs) in a relevant field, Top Secret/SCI clearance with polygraph, IAT Level II certification (e.g., CompTIA Security+, GSEC, SSCP, CCNA-Security), Red Hat Linux, databases, cloud (AWS/Azure/GCP), STIGs, Ansible, Docker/Kubernetes, Terraform/CloudFormation.
Red Hat, PitBull, PostgreSQL, Oracle, MySQL, MariaDB, AWS, Microsoft Azure, Google Cloud Platform, Apache, NGINX, Tomcat, Docker, Kubernetes, Ansible, Ansible Tower, Ansible Automation Platform (AAP), Red Hat Satellite, Terraform, CloudFormation
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3mo
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System Administrator
Austin or Dallas
HybridFull Time
Sourceability
Sourceability: Digital distributor of electronic components and supply chain solutions.
5+ YOE5+ years systems administration experience with Windows Server, VMware/vSphere, and Linux VMs; networking fundamentals; production support, patching, and operational ownership required.
Windows Server, Linux, VMware vSphere, Microsoft Hyper-V, Ubuntu, Microsoft Azure, Cisco Meraki
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1mo
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System Administrator (Linux and Datacenter)
Austin, Texas, United States
OnsiteFull Time
Quantiq
Quantiq: Proprietary high frequency derivatives trading firm.
5+ YOE5+ years Linux admin experience; strong hardware, low-level software, and networking debugging; Bash and Python scripting; experience with Fedora, FreeIPA/OpenLDAP/OpenVPN, ZFS, DNS, and common networking tools.
Fedora Linux, Bash, Python, ping, ifconfig, telnet, wireshark, nmcli, FreeIPA, OpenLDAP, OpenVPN, DNS, ZFS, Gitea, Zulip, GRUB, PXE, Supermicro, Dell Servers
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1mo
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System Administrator III
Dallas, Texas, United States
OnsiteFull Time
Southwest Transplant Alliance
Southwest Transplant Alliance: Manages the procurement and transport of organs for transplantation.
5+ YOEBachelor's in IT (or equivalent), 5+ years enterprise systems administration, 3+ years Hyper-V, Windows and Linux administration, backup/recovery, cloud/hybrid experience, PowerShell scripting, monitoring, and strong documentation/communication skills.
Microsoft Hyper-V, Microsoft Windows Server, Linux, Microsoft Azure, PowerShell, Active Directory, Group Policy
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1mo
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OT System Administrator
Austin, Texas, United States
OnsiteFull Time
LS Power
LS Power: Developer, investor, and operator of power and energy infrastructure.
5+ YOE5+ years systems administration in regulated/mission-critical environments; hands-on Windows and Linux, VMware, NetApp, enterprise backup (Veeam/Commvault), RSA, and Microsoft SQL Server; willingness to participate in 24/7 on-call rotation.
Windows Server, Linux, VMware vSphere, VMware ESXi, VMware vCenter, NetApp, Veeam, Commvault, RSA, Microsoft SQL Server, Splunk, Nessus Security Center, Tripwire Enterprise, IBM BigFix, Symantec Endpoint Security, Avigilon ACM, AssurX, FoxGuard, Active Directory, Group Policy Objects (GPOs), DNS, LaserFiche, Microsoft SharePoint
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1w
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System Administrator – Journeyman
San Antonio, Texas, United States
$85k-$100k/yr RemoteFull Time
ASM ResearchNYSE: ACN: Provides IT and healthcare services to government agencies.
4+ YOEBachelor's (or equivalent) and 4+ years system administration experience; Windows/Linux server management, monitoring, patching, backups, automation with PowerShell/Bash/Python; active Secret clearance and US citizenship required.
Nagios, Splunk, CloudWatch, PowerShell, Bash, Python, VMware, AWS, Azure, Ansible, Terraform
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3mo
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System Administrator - United States
San Antonio, Texas, United States
OnsiteFull Time
Maximus
MaximusNYSE: MMS: Provides government health and human services program administration.
10+ YOE10+ years IT systems administration on Windows and Linux; 2 years AWS maintenance; 5 years DoD COCOM experience; active TS/SCI clearance; DoD IAT-II security+ certification.
AWS, Linux, Windows, STIG, Security+, Red Hat
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2mo
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Intermediate System Administrator
San Antonio or Fort Meade
OnsiteFull Time
Semper Valens Solutions
Semper Valens Solutions: Provides systems engineering, software development, and technical support services.
10+ YOE10+ years IT systems administration on Windows and Linux; AWS maintenance; Kubernetes; Docker; Terraform; Helm; Ansible; CI/CD; GitLab; Kustomize; IAT Level II; Security+; CISSP; TS/SCI eligibility
Kubernetes, Docker, AWS, Azure, Google Cloud, Linux, Windows, Helm, Terraform, Ansible, Vault, CI/CD, GitLab, Kustomize
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2w
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Information Technology System Administrator
Hood River or Dallas
OnsiteFull Time
Trillium Engineering
Trillium Engineering: Designs and manufactures gimbal imaging systems for unmanned aircraft.
2+ YOEAssociate's or Bachelor's in IT (preferred) or equivalent experience; 2 years IT support/systems administration experience; working knowledge of Windows, macOS, Linux, Active Directory, Microsoft 365, endpoint protection, secure remote access; strong communication and problem-solving.
Windows, macOS, Linux, Active Directory, Microsoft 365
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6d
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HPC System Administrator - Hybrid
Irving, Texas, United States
HybridFull Time
Caris Life Sciences
Caris Life SciencesNASDAQ: CAI: Provides molecular profiling and AI-driven precision medicine diagnostics.
3+ YOE3+ years Linux administration and 2+ years HPC experience; experience with job schedulers, parallel file systems, enterprise storage, high-speed networking, Bash/Python scripting, and data center hardware; on-call ability.
IBM LSF, Slurm, IBM Spectrum Scale (GPFS), Lustre, BeeGFS, NetApp E-Series, InfiniBand, Bash, Python, Microsoft Word, Microsoft Excel, Microsoft Outlook
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4d
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Senior Systems Administrator (Linux)
Houston, Texas, United States
OnsiteFull Time
Cheniere Energy
Cheniere EnergyNYSE: LNG: Produces and exports liquefied natural gas to global markets.
5+ YOE5+ years systems administration experience with Oracle/Red Hat Linux, OpenShift, backup and recovery, storage, scripting, vulnerability remediation, and enterprise system design; bachelor’s degree in CS or equivalent.
Oracle Linux, Red Hat Linux, OpenShift, Ansible, Nimble, Veeam, Exagrid, Bash, Oracle OLM/OSMH, ULN, yum, dnf, up2date, Kubernetes, Oracle RAC, Cisco UCS, VMware ESXi, Windows 2016 R2
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2w
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ILS System Administrator
Abilene, Texas, United States
HybridFull Time
Abilene Christian University
Abilene Christian University: A private Christian university offering undergraduate and graduate education.
Manage and administer ALC's integrated library system; support users and vendors; experience with SirsiDynix products, relational databases, Perl/Bash/Shell, Linux/Windows/macOS; 5 years ILS/admin preferred; valid driver's license.
Perl, Shell scripting, Bash, Linux, Windows, macOS, SirsiDynix Symphony, SymphonyWeb, Enterprise, BlueCloud
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