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Linux Systems Administrator
Chicago, Illinois, United States
$83k-$110k/yr HybridFull Time
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
2w
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Linux Systems Administrator
Chicago, Illinois, United States
$82k-$110k/yr HybridFull Time
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
2w
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Systems Administrator
Chicago, Illinois, United States
RemoteFull Time
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
1mo
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Senior Systems Administrator
Des Plaines, Illinois, United States
OnsiteFull Time
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.
Hypervisor, Microsoft Windows, Linux
1mo
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Systems & Network Administrator
Kenosha, Wisconsin, United States
HybridFull Time
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
4w
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Senior Infrastructure Systems Administrator
Lisle or Chicago
HybridFull Time
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.
Solaris 10, Solaris 11, Linux, Windows, SAN, VMware, AWS, Azure, Apache, Tomcat, PostgreSQL, Bash, PowerShell, Python, Grafana, Prometheus, Nagios, Zabbix, SolarWinds
2w
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Systems Administrator (GEODSS) - Diego Garcia 1
Diego Garcia or San Diego or Chicago or Fairbanks or Vandenberg AFB or Nellis AFB
OnsiteFull Time
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
1w
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Systems / Network Administrator Lead
Chicago, Illinois, United States
$115k-$155k/yr RemoteFull Time
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
1mo
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IT Systems Administrator
Des Plaines, Illinois, United States
$90k-$120k/yr HybridFull Time
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
1mo
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Associate IT Systems Administrator
Kenosha, Wisconsin, United States
OnsiteFull Time
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
3d
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Sr. Systems Admin 1 -
Chicago or Baltimore or Oakbrook Terrace or Philadelphia or Washington
$86k-$119k/yr HybridFull Time
4+ YOEBachelor's in CS or related plus several years in IT infrastructure/application/cloud support; expert with Oracle platforms, OCI, Linux, CI/CD, SOX environments; strong troubleshooting, project and stakeholder skills.
Oracle ERP, Oracle EPM, OCI, CI/CD, Linux
3d
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Sr. Systems Admin 1 -
Chicago or Baltimore or Oakbrook Terrace or Philadelphia or Washington
$86k-$130k/yr HybridFull Time
4+ YOEBachelor's required or equivalent experience; 4+ years IT infrastructure/application/cloud experience; expertise with Oracle ERP/EPM, OCI, Linux, SOX environments, code migration, patch management, and audit readiness.
Oracle ERP, Oracle EPM, OCI, Linux
1mo
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Systems Engineer
Evanston, Illinois, United States
$80k-$95k/yr OnsiteFull Time
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
1mo
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Systems Engineer
United States or Chicago
RemoteFull Time
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
1mo
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System Administrator
Romeoville, Illinois, United States
$84k-$109k/yr OnsiteFull Time
5+ YOE5+ years IT experience with 2+ years supporting manufacturing systems; strong Windows Server/AD/Group Policy, Office 365 administration, VMware, SCCM, and PowerShell skills; bachelor\u0002s degree preferred or technical certifications considered.
Microsoft Office 365, Microsoft Exchange, Microsoft SharePoint, Microsoft Teams, Windows Server, Active Directory, DNS, DHCP, Group Policy, Windows 10, Windows 11, VMware, Microsoft SCCM, PowerShell, SCADA, MES, PLC, HMI, Linux
1mo
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IT Security Administrator
Rosemont, Illinois, United States
$87k-$109k/yr OnsiteFull Time
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
1mo
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Data Center System Administrator
Chicago, Illinois, United States
$98k-$120k/yr HybridFull Time
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.
Linux, Unix, RedHat, Suse, RHEL, CentOS, Confluent, Slurm
3mo
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Trading Systems Engineer - Options Market Making ((253)
Chicago, Illinois, United States
OnsiteFull Time
Experience with Python, Linux system administration, CI/CD, and tools like Ansible, Octopus, TeamCity, Volt; familiarity with Jira and performance tuning.
Python, Linux, Ansible, Octopus, TeamCity, Volt, Jira, CI/CD
3w
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Trading Systems Engineer
Austin or Boulder or Chicago or London or New York City
$150k-$250k/yr OnsiteFull Time
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.
Linux, Debian, Ubuntu, SaltStack, Puppet, Ansible, Chef, CFEngine, Python, bash, JIRA, AWS, GCP
1w
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Senior System Administrator II (Ceph Engineer)
Chicago or San Francisco
OnsiteFull Time
5+ YOE5+ years Linux systems administration focused on storage, experience with enterprise storage (Purestorage, NetApp, EMC, Dell, IBM, Hitachi), RAID/LVM/NFS/iSCSI, shell scripting, Python/Ansible/Puppet, virtualization, cloud storage and monitoring tools.
Ceph, Purestorage, NetApp, EMC, Dell, IBM, Hitachi, RAID, LVM, NFS, iSCSI, ext4, XFS, ZFS, shell scripting, Python, Puppet, Ansible, VMware, KVM, AWS S3, EBS, Nagios, Prometheus, Zabbix
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