60 unix administrator jobs at 43 companies in Johnsburg, IL
1mo
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
Lead Databricks Administrator
Chicago or Irving
$98k-$182k/yr HybridFull Time
7+ YOE7+ years in database/data platform or cloud infrastructure, 3+ years administering Databricks, strong IAM and Unity Catalog knowledge, Terraform/automation, SQL/Unix/Linux and scripting; BS preferred or equivalent experience.
Databricks, Unity Catalog, Terraform, AWS, Azure, GCP, SQL, Unix/Linux, Python, Scala, APIs, CI/CD, SSO, SCIM, RBAC
1mo
Save
Mark Applied
Hide
Lead Databricks Administrator
Chicago or Irving
$98k-$182k/yr OnsiteFull Time
7+ YOE7+ years in database/data platform or cloud infrastructure, 3+ years administering Databricks, experience with AWS/Azure/GCP, IAM/SSO/SCIM, Unity Catalog, Terraform/automation, strong SQL, Unix/Linux and scripting skills.
Databricks, Unity Catalog, Terraform, Python, Scala, SQL, Unix/Linux, CI/CD, APIs, SSO, SCIM, AWS, Azure, GCP
8h
Save
Mark Applied
Hide
Network Administrator
Aurora, Illinois, United States
$60k-$80k/yr OnsiteFull Time
5+ YOEBachelor's in information technology, 5+ years of network administration experience, broad infrastructure and endpoint expertise, English fluency, ability to lift 40 pounds, and successful federal background check.
Windows, Linux, VLAN, ACL, Ethernet, VPN, AD, MFA, DNS, DHCP, PKI, VoIP, MDM, Teams, Webex, Microsoft 365, Mac, Printers, SIEM, EDR, WAF, PowerShell
1mo
Save
Mark Applied
Hide
System Administrator
Mount Pleasant, Wisconsin, United States
OnsiteFull Time
2+ YOEManage Windows/Linux/Mac systems, Active Directory/Group Policy, virtualization, backups, monitoring (Zabbix, Graylog), endpoint security/MDM, hardware/software inventory, documentation, staff training. Bachelor's in CS/IT required; 2+ years system administration experience.
Windows, Linux, Mac, Active Directory, Group Policy, Zabbix, Graylog, MDM
2w
Save
Mark Applied
Hide
System Administrator (On Site)
Chicago, Illinois, United States
OnsiteFull Time
5+ YOEBachelor's degree in computer science, 5–7 years of systems administration experience, 2+ years of Linux administration, cloud and networking expertise, and strong troubleshooting and clinical workflow skills.
Linux, AWS, Windows, TCP/IP, DNS, DHCP, PACS
3w
Save
Mark Applied
Hide
OUD LDAP Administrator
Chicago, Illinois, United States
$100k-$115k/yr OnsiteFull Time
6+ YOEExpertise in LDAP and Oracle Unified Directory administration, SSL/TLS and identity integrations, Linux and shell scripting, HA/DR and infrastructure troubleshooting; bachelor's degree and 6+ years experience.
LDAP, Oracle Unified Directory (OUD), OUDSM, Entra ID (Azure AD), Okta, Oracle IAM, Linux, Bash, Korn shell
1w
Save
Mark Applied
Hide
Senior Database Administrator
Chicago, Illinois, United States
$90k-$134k/yr HybridFull Time
4+ YOEBachelor's degree in computer science, engineering, information systems, related information management, or clinical study; 4+ years of database administration experience with Oracle or SQL Server, SQL, performance tuning, and backup and recovery.
Oracle, Microsoft SQL Server, Structured Query Language (SQL), Cache’, Sybase, Statspack, OEM/GRID Control, T-SQL, Azure, AWS, Windows, Linux/UNIX, IP addressing, VPNs, firewalls, ITIL
1mo
Save
Mark Applied
Hide
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
2mo
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
System Administrator (Contract-to-Hire)
Chicago, Illinois, United States
HybridFull Time
3+ YOE3+ years in IT security operations; experience with Microsoft Entra ID, EDR/EDR platforms (SentinelOne/CrowdStrike), SIEM, Linux, vulnerability scanning, and compliance frameworks (SOC 2/NIST/CIS); strong communication skills.
Huntress, Blumira, Microsoft Entra ID, SentinelOne, CrowdStrike, EDR/EPP, SIEM, Linux, SAML, OIDC, Mimecast, Conditional Access, PIM, SOC 2, NIST, CIS Controls, ISO 27001
1w
Save
Mark Applied
Hide
Systems/Network Administrator Lead
North Chicago, Illinois, United States
$170k-$200k/yr HybridFull Time
5+ YOE5+ MgmtActive DoD Secret clearance, five years of enterprise IT architecture and engineering experience, ITIL v4 certification, DoDM 8140.03 certifications, and executive-level briefing experience.
Microsoft Windows, UNIX, Linux, Microsoft SQL Server, Microsoft SharePoint, VMware, ESXi, SAN, LAN, MPLS, BGP, WAN
1mo
Save
Mark Applied
Hide
Senior PeopleSoft Campus Solutions Administrator
Chicago, Illinois, United States
$125k-$133k/yr HybridFull Time
5+ YOECollege degree and 5+ years related experience; expertise administering PeopleSoft Campus Solutions, PeopleTools, Oracle DB, scripting (PowerShell/Perl/CSH/BASH), environment lifecycle, patching, monitoring, and high-availability operations.
Oracle WebLogic, Oracle Tuxedo, Oracle PeopleTools, Oracle database 11g or greater, Integration Broker, Change Assistant, Upgrade Assistant, PowerShell, Perl, CSH, BASH, Windows Server, Red Hat Enterprise Linux, UNIX/Linux, PL/SQL, SQL, PeopleSoft
3w
Save
Mark Applied
Hide
Teamcenter Admin
Chicago or United States
$73k-$174k/yr RemoteFull Time
5+ YOE5-7+ years Teamcenter administration, user/security management, upgrades/migrations, GTAC support, monitoring and troubleshooting of Teamcenter infrastructure.
Teamcenter, Active Workspace (AWC), BMIDE, Dispatcher, FSC, FMS, Windows, Linux, Oracle, SQL Server, ITK, SOA, NX, CATIA, SolidWorks, Shell scripting, Python
1w
Save
Mark Applied
Hide
File Transfer System Admnistrator
Richmond or Chicago or Kansas City or New York City or Atlanta or Dallas or Charlotte or Boston or Philadelphia or Cleveland or St. Louis or Minneapolis or San Francisco
$104k-$123k/yr OnsiteFull Time
5+ YOERequires 5+ years administering IBM Sterling Connect:Direct, 3+ years with Sterling Secure File Gateway, Linux/Unix and shell scripting expertise, automation experience, and a bachelor's degree or equivalent experience.
IBM Sterling Connect:Direct, IBM Sterling Secure File Gateway, IBM Sterling Secure Proxy, Axway Secure Transfer, SecureTransport, CFT, FTP, SFTP, FTPS, HTTP, HTTPS, AS2, PeSIT, Linux, Unix, RHEL, CentOS, Bash, KSH, Ansible, Git, IBM Sterling Control Center, Docker, Kubernetes, AWS, Azure, GCP, Nagios, Splunk, ELK Stack, Oracle, DB2, PostgreSQL, TCP/IP, DNS, SSL/TLS, PKI, Python, Perl, Ruby
2mo
Save
Mark Applied
Hide
it admin
Northbrook, Illinois, United States
$75k-$80k/yr OnsiteFull Time
LEV MONITORING SOLUTIONS: Provider of specialized cardiac monitoring and patient support services.
2+ YOEBachelor's degree in IT, Computer Science, or related field; 2+ years of IT administration or support experience; knowledge of networks, firewalls, security, Windows, and Linux; strong troubleshooting and communication skills.
Windows, Linux
1w
Save
Mark Applied
Hide
Administrator - Network LAN/WAN
Chicago, Illinois, United States
$73k-$101k/yr OnsiteFull Time
1+ YOERequires 1–2+ years in computer hardware, networking, and troubleshooting; server and network hardware expertise; Linux and CLI proficiency; strong communication; and ability to lift 40 pounds.
Juniper, Cisco, Arista, Linux, CLI, Return Merchandise Authorization (RMA), Field Replaceable Units (FRUs), Standard Operating Procedures (SOPs)
Explore Jobs