342 junior linux system administrator jobs at 208 companies in United States
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Linux System Administrator
Killeen, Texas, United States
OnsiteFull Time
First National Bank Texas: Community-focused banking and financial services provider.
High school diploma required; bachelor's degree preferred. Requires Linux, Windows Server, web security, virtualization, container platforms, troubleshooting, communication, confidentiality, and background investigation.
Peraton: Provider of mission-critical national security technologies and services.
2+ YOE2+ years experience (with Bachelor's) or 6 years with HS, Linux/RHEL administration, shell scripting, SQL and database maintenance, motivated to obtain CISSP, US citizen and onsite 5 days/week.
Linux, Red Hat Enterprise Linux (RHEL), shell scripting, SQL, Git, Oracle Database, SAP Business Objects, Apache Tomcat, Apache HTTP Server, NTP, IPSEC, Postfix, Dovecot, Java, LDAP
MotivHealth: Utah-based health insurance serving employers and members with HSA-based plans and healthcare cost-containment services.
2+ YOERequires 2+ years in system administration, IT support, or help desk; knowledge of networks, servers, operating systems, Microsoft 365, cloud applications, scripting, troubleshooting, and data security.
Microsoft 365, Entra ID, Intune, Outlook, Microsoft SharePoint, Microsoft Teams, PowerShell, Bash, Python, Windows, macOS, Linux, SaaS, AI
ASM Research: Solutions integrator providing technology services for federal government clients.
0+ YOEBachelor's or equivalent,0–3 years IT/systems experience,knowledge of Windows/Windows Server,Microsoft 365,Teams,SharePoint,Linux,PowerShell/Bash,scripting,ability to obtain background investigation and U.S. citizenship required.
Windows, Windows Server, Microsoft 365, Microsoft Teams, Microsoft SharePoint, Linux, PowerShell, Bash, Azure
CesiumAstro: Developing advanced communication systems for space and airborne platforms.
2+ YOEBachelor's degree in a technical discipline with 2+ years Linux systems administration; networking fundamentals (TCP/IP, DNS, DHCP, VLANs), cybersecurity best practices, troubleshooting, operational readiness, and strong cross-team communication.
AM Pierce & Associates: Woman-owned U.S. defense contractor providing engineering, cyber, C5ISR, and program-management services to the Department of Defense.
1+ YOEActive DoD Secret clearance (Top Secret obtainable), RMF/STIG experience, 1+ years system administration (junior) or 3+ years (journeyman), Linux, virtualization, networking, backups, Active Directory skills.
VMware, Active Directory, Linux, STIG, RMF, Containers, Virtual Networking
Bridgeway Benefit Technologies: Private benefits-administration software provider serving multiemployer funds and third-party administrators in the Taft-Hartley market.
2+ YOERequires 2+ years in IT support or system administration, production Linux and Windows server administration, networking, AVD, Entra ID, Active Directory, Microsoft 365, endpoint management, ITSM, regulated environments, and scripting.
Linux, Windows, Microsoft Teams, Microsoft SharePoint, Microsoft OneDrive, Claude Desktop, Copilot, VPN, RD Web, Azure Virtual Desktop, FSLogix, Entra ID, Active Directory, Auth0, FusionAuth, 1Password, Microsoft 365, Bash, PowerShell, SOC 2, HIPAA, ITSM, GPO, SSO, MFA, Conditional Access, SSH, sudo
Clear Ridge Defense: Small-business defense contractor providing cyberspace operations and cybersecurity services to federal and commercial clients.
2+ YOETS/SCI with poly required, active Sec+ certification, 2+ years supporting Windows/Linux/Unix, 2+ years with Docker or Kubernetes, experience with JWICs/IC networks, proficiency with network devices, strong interpersonal skills.
ManTech International: Advancing the future of defense through innovative technology.
2+ YOEHS/GED with 2+ years Linux systems experience in large, complex environments; experience with Centrify, LDAP, Active Directory, shell scripting; Ansible preferred; strong documentation and communication; active TS/SCI with polygraph required.
Linux, Centrify, LDAP, Active Directory, shell scripting, Ansible
Linux Architecture - System Administrator II - Req# 608
Southington or Rocky Hill or Avon
$73k-$109k/yrHybridFull Time
COCC: Client-owned fintech cooperative providing core banking, digital banking, cybersecurity, and related technology to financial institutions.
1+ YOERequires a computer science degree or equivalent experience, 1–3 years of infrastructure support, Windows or Linux administration, virtualization, cloud, storage, Kubernetes, scripting, documentation, and communication skills.
Freedom Technology Solutions Group: Provides IT consulting and government technology services.
5+ YOEBachelor's degree in a technical discipline or five additional years of system administration experience, DoD 8570 IAT Level I, AWS, Windows and Linux server administration, security, troubleshooting, and PKI certificate experience.
Independent Software, Inc.: Private IT services firm providing cyber, intelligence, analytics, and software engineering to government and commercial clients.
Mission Multiplier: Privately held cybersecurity and IT consulting firm serving government agencies, defense contractors, and commercial businesses.
0+ YOE0–3 years of system administration experience, a bachelor's degree or equivalent, Security+ certification, Windows or Linux familiarity, and an active Secret clearance or ability to obtain one.
Windows, Linux, PowerShell, Bash, Python, DISA STIGs, SECNAV M-5239.2
Atomica: U.S. microfabrication foundry serving technology companies with MEMS, photonics, sensors, biochips, and AI hardware platforms.
2+ YOE2+ years IT systems support experience, Microsoft 365 administration, desktop (Windows/Linux/macOS), Active Directory, DELL/HP/Cisco hardware, documentation skills, customer-focused communication; PowerShell and cloud exposure preferred.
Microsoft 365, Windows, Linux, macOS, Active Directory, DELL, HP, Cisco, Microsoft PowerPoint, Microsoft Visio, Microsoft Word, Microsoft Excel, PowerShell, CRM, ERP, MES
USG Corporation: Private Knauf-owned manufacturer of gypsum, wall, ceiling, flooring, sheathing, and roofing products for construction markets worldwide.
2+ YOE2+ years managing Red Hat Linux and VMware environments; experience with Red Hat Satellite, scripting/automation, backup/recovery tools, SAN/storage, and familiarity with Azure and Oracle support.
Red Hat Enterprise Linux, VMware ESXi, Azure, Oracle, Red Hat Satellite, Ansible Automation Platform, Avamar, Veeam, HPE ProLiant, HPE Synergy, HPE Alletra, Docker, Kubernetes
SAICNASDAQ: SAIC: Premier technology integrator for defense, space, and civilian markets.
2+ YOEBachelor's degree and 2 years' experience, or 4 years in lieu of degree; DoD cybersecurity certification, IAT Level II certification, Secret clearance, and technical systems administration experience.
Linux, Windows Server, Active Directory, Group Policy, VMware, ESXi
Sentinel Technologies: IT services and solutions provider serving organizations with infrastructure, cloud, security, communications, and managed services.
2+ YOE2+ years supporting enterprise Linux and virtualized/hybrid environments; experience with RHEL, VMware, Red Hat Satellite, Ansible, HPE infrastructure, SAN/Veeam/Avamar, Azure, scripting, and 24/7 production support.
Red Hat Enterprise Linux, VMware, VMware ESXi, Red Hat Satellite, Ansible, CI/CD, Azure, HPE, Veeam, Avamar, Oracle, Docker, Kubernetes
Salt Productions: Salt Productions is a private experiential production agency creating in-person brand experiences and events for clients worldwide.
1+ YOEIT systems administration experience, cloud infrastructure support, networking fundamentals, shell and Python scripting, professional Mac, Windows, or Linux administration, and Google Cloud Platform familiarity.
Linux System Administrator- Must have a active TS/SCI Poly clearance
Richardson, Texas, United States
$69k-$131k/yrOnsiteFull Time
RTXNYSE: RTX: Aerospace and defense providing advanced technology solutions.
2+ YOEActive transferable TS/SCI with CI Poly, DoD 8570 IAT Level 2 (or higher), bachelor’s degree with 2+ years relevant experience, Red Hat and VMware administration, and ability to support after-hours/on-call work.
Red Hat Enterprise Linux, VMware ESXi, VMware vCenter, Amazon Web Services (AWS), Terraform, Ansible, Chef, Bash, Python, LDAP
IntertekLondon Stock Exchange: ITRK: Global provider of total quality assurance services.
2+ YOEAssociate degree or equivalent, 2+ years of network maintenance experience, Microsoft Server knowledge, Linux and networking expertise, firewall/VPN/router experience, and strong communication and organizational skills.
Microsoft Server, Linux, Ubuntu, Rocky Linux, Red Hat, CentOS, Windows 11, firewalls, VPN, routers, Cisco, VMware, wireless technology, Microsoft Windows