29 linux systems administrator jobs at 26 companies in Hoffman Estates, IL
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Linux Systems Administrator
Chicago, Illinois, United States
$83k-$110k/yrHybridFull Time
USG Corporation: Manufacturer of high-quality building materials and ceiling systems.
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
Sentinel Technologies: Provides managed IT, cybersecurity, and cloud solutions to businesses.
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
Sentinel Technologies: Provides managed IT services and comprehensive technology solutions.
2+ YOE2+ years supporting enterprise Linux and virtualized infrastructure; experience with RHEL, VMware, automation (Ansible), patching, backups, disaster recovery, and collaboration in 24/7 environments.
Red Hat Enterprise Linux, Red Hat Satellite, VMware ESXi, HPE, Azure, Oracle, Ansible, CI/CD, Veeam, Avamar, Docker, Kubernetes
Econ One: Provides economic consulting and expert testimony for litigation support.
3+ YOEBachelor's or equivalent, 3+ years systems administration across Linux and Windows, Active Directory and Group Policy, PostgreSQL administration, Remote Desktop Services, scripting (Bash/PowerShell/Python), and on-call participation.
Active Directory, Group Policy, PostgreSQL, Remote Desktop Services, Truenas (CORE and SCALE), Bash, PowerShell, Python, AWS, Azure, Entra, Intune, Docker, Kubernetes, Proxmox, FSLogix
Oakton College: A public community college providing associate degrees and certificates.
Manage day-to-day operations and system security for hypervisor, Microsoft Windows, and Linux hosts; install and maintain server operating systems and equipment; supervise related activities and resource allocation.
Softthink Solutions: Provides IT services and solutions to federal government agencies.
3+ YOE3+ years systems and network administration experience; strong knowledge of firewalls, VPN, routing, switching, Microsoft Server, Linux, virtualization, and cybersecurity; CJIS compliance and US citizenship required; ability to support 24/7 environments and respond to priority incidents.
CAD, LERMS, TIME System, ERP, Office 365, Microsoft Server, Linux, virtualization platforms, VPN, firewall, MFA, antivirus
Datavault AINasdaq: DVLT: AI-driven data management, valuation, and event technology solutions.
7+ YOE7+ years infrastructure/systems administration experience with Unix/Linux and Solaris, SAN/storage and on‑prem server support, strong troubleshooting, networking fundamentals, and ability to support on‑call/after‑hours production systems.
Diego Garcia or San Diego or Chicago or Fairbanks or Vandenberg AFB or Nellis AFB
OnsiteFull Time
SercoLondon Stock Exchange: SRP: Provides professional outsourcing services to governments worldwide.
4+ YOEActive security clearance and U.S. citizenship; minimum 4 years systems administration experience; Linux and Windows experience; DISA STIG compliance, backups, auditing, incident response; CompTIA Security+/CCNA/RedHat desired.
GEODSS, Linux, Windows, RedHat, DISA Security Technical and Implementation Guide (STIG), CompTIA Security +, CCNA
Computer World Services: Provides IT modernization and cybersecurity solutions for federal government agencies.
5+ YOE5+ Mgmt5+ years enterprise IT/systems and network administration experience, DoD RMF and outage/incident leadership, ITIL, multiple network/security certifications, and active Secret clearance.
Windows, UNIX/Linux, VMware ESXi, Storage Area Networks (SAN), Virtual Desktop Infrastructure (VDI), IPv4, IPv6, DISA
GTI Energy: Research and development of innovative global energy technologies
7+ YOE7+ years IT experience (or equivalent), strong Microsoft/Azure environment skills (Azure AD, on-prem AD, Intune, Microsoft 365), virtualization, NetApp storage, networking, cybersecurity, PowerShell; bachelor’s or equivalent preferred.
Azure Active Directory, Active Directory, Microsoft 365, Microsoft Teams, Microsoft Intune, NetApp, Microsoft Copilot, PowerShell, Power BI, Power Apps, SharePoint Online, Java, SQL, Linux
TISTA Science and Technology: Delivers IT solutions and professional services to federal agencies.
Red Hat Enterprise Linux administration, shell scripting/automation (Bash, Python, Ansible), virtualization and cloud experience (VMware,vSphere,Red Hat Virtualization,AWS,Azure), networking and storage knowledge, and ability to pass a Tier 2 background investigation.
Red Hat Enterprise Linux, Red Hat, DNS, NFS, SSH, FTP, Apache, VMware, vSphere, Red Hat Virtualization, Bash, Python, Ansible, Amazon Web Services, Microsoft Azure, LDAP, Active Directory, SAN, NAS, CI/CD
Ocean Spray: A farmer-owned cooperative producing cranberry juices and fruit snacks.
3+ YOEBachelor's degree and 3+ years IT experience. Strong knowledge of Microsoft Active Directory, DNS, DHCP, NTFS, LAN/WAN, IP address management, Microsoft Azure, UNIX, enterprise systems, project management, and customer service.
Microsoft Active Directory, DNS, DHCP, NTFS, Microsoft Windows, LAN/WAN Networking, IP Address Management, Microsoft Azure, UNIX, Intel
TISTA Science and Technology Corporation: Provides technology and cybersecurity services to federal government agencies.
Experience administering Red Hat Enterprise Linux, shell scripting/automation, networking and storage knowledge, virtualization and cloud exposure, LDAP/AD integration, and ability to pass a Tier 2 background investigation.
Red Hat Enterprise Linux, Bash, Python, Ansible, VMware, vSphere, Red Hat Virtualization, Amazon Web Services (AWS), Microsoft Azure, DNS, NFS, SSH, FTP, Apache, LVM, SAN, NAS, LDAP, Active Directory, CI/CD
Northwestern University: Private research university providing higher education and academic research.
3+ YOE3+ years system administration experience with Linux/Windows, scripting (PowerShell, Bash, or Python), troubleshooting, supporting multi-tier applications, cloud exposure (AWS/Azure/GCP) and strong communication skills.
Linux, Microsoft Windows, PowerShell, Bash, Python, AWS, Microsoft Azure, Google Cloud Platform, Ansible, Terraform, Puppet, Chef, Splunk, Datadog, Nagios, Git, Docker, Kubernetes, ITIL
UpStream Global Services: IT services firm providing software engineering and staffing solutions.
3+ YOE3+ years systems engineering or administration experience; strong Windows and Linux server knowledge; virtualization (VMware/Hyper-V); cloud familiarity (AWS, Microsoft Azure, Google Cloud); networking and monitoring skills.
Windows, Linux, VMware, Hyper-V, Amazon Web Services, Microsoft Azure, Google Cloud, TCP/IP, DNS, DHCP, VPNs, firewalls, system monitoring, automation, scripting
Reyes Holdings: Global distributor of food and beverage products.
1+ YOEBachelor's in relevant field or HS with extensive experience; 1+ years system administration experience (Windows, Linux, Cisco) preferred; knowledge of vulnerability assessment, patch management, application security controls, and compliance frameworks; Microsoft Office proficiency.
Windows Servers, Linux Servers, Cisco Networking Equipment, Microsoft Office, Power BI, Power Platform, NIST, PCI, IOTCA
LenovoHKSE: 992: Manufactures personal computers, mobile devices, and server infrastructure.
3+ YOE3+ years Linux/RHEL/SUSE/CentOS system administration; experience with server, storage, networking; Confluent & Slurm preferred; OS installation, troubleshooting, firmware upgrades, and customer-facing communication skills.
Parallel Works: Unified control plane for managing hybrid HPC and AI workloads.
10+ YOE10+ years operating production Linux systems, production Slurm administration, HPC storage and fabric experience, NVIDIA GPU node operations, Ansible/Terraform and Bash/Python proficiency, US citizenship and Secret clearance eligibility.
Austin or Boulder or Chicago or London or New York City
$150k-$250k/yrOnsiteFull Time
Hudson River Trading: A quantitative firm using technology to trade global financial markets.
7+ YOE7+ years supporting live production trading environments; expert Linux administration; experience with SaltStack/Puppet/Ansible/Chef/CFEngine; advanced automation with Python and bash; production troubleshooting, benchmarking, and on-call support.