Senior System Administrator
4 weeks ago
Job Overview Responsible for the administration, security, and reliability of the company's IT infrastructure including servers, networks, and Azure. This role ensures optimal performance, reliability, and security across hybrid on-premises and cloud environments. Essential Duties and Responsibilities (Other duties may be assigned) Serve as the primary administrator for the company's Azure infrastructure (virtual machines, networking, storage, identity, and monitoring). Manage and maintain LAN/WAN, VPNs, firewalls, WAPs, VLANs, and all network devices (primarily Cisco Meraki). Monitor and maintain infrastructure health, performance, and capacity, performing proactive maintenance and responding to incidents. Partner with the cybersecurity MSP to lead internal response for security alerts, vulnerabilities, and incidents. Support compliance efforts related to security frameworks (NIST, ISO 27001, SOC 2, SOX, or similar). Lead Windows Server and endpoint patching, including testing, deployment, and post-rollout validation. Support M365 tenant configurations, licensing, and integrations. Support mobile device management (MDM) via Intune for both corporate and BYOD assets. Manage server and workstation policies using a combination of Intune and Group Policy. Lead or participate in IT projects such as infrastructure upgrades, office expansions, or system migrations. Maintain comprehensive documentation (system configurations, network diagrams, SOPs, troubleshooting). Mentor junior IT staff to ensure coverage during absences. Perform scheduled after-hours maintenance following change control procedures. Occasionally assist with desktop troubleshooting and end-user support when team members are out of office or when there are spikes in support tickets Qualifications An employee in this position should have the following work experience, skill set, education/certifications, and physical/mental requirements: Work Experience: 8 years of progressive IT infrastructure experience. Proven experience managing hybrid environments (on-premises + Azure). Hands-on experience with Azure, Windows Server, Active Directory, and Cisco or Meraki networking. Experience managing M365 environments, with an emphasis on Entra and Intune. Experience with PowerShell automation for system and network administration. Exposure to Oracle Cloud Infrastructure is a plus. Knowledge/Skills: Deep understanding of: Azure services: AD, VPN Gateway, VNets, storage, firewalls, ExpressRoute, monitoring tools. Networking: VLANs, subnets, DHCP/DNS, site-to-site VPNs, and IDS/IPS configuration. Security best practices: identity management, least privilege, MFA enforcement, logging, endpoint management. Windows infrastructure: Group Policy, patch management, and Intune. Strong troubleshooting and root-cause analysis skills across OSI layers. Excellent documentation, organization, and communication abilities. Ability to cross-train is key. Powershell and other similar scripting languages. Education/Certification: Associate or bachelor's degree in the field of computer science and/or Information Systems Management is preferred but not required. One or more of the following certifications strongly preferred: Microsoft Certified: Azure Administrator Associate (AZ-104) Cisco CCNA or CCNP CompTIA Security+ or Network+
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Senior Systems Administrator
3 days ago
Chicago, United States Synergy Interactive Full timeThis range is provided by Synergy Interactive. Your actual pay will be based on your skills and experience talk with your recruiter to learn more. Base pay range $100,000.00/yr - $140,000.00/yr Direct message the job poster from Synergy Interactive Senior Interactive Recruiter & Account Manager at Synergy Interactive with expertise in recruiting and account...
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Senior Systems Administrator
2 weeks ago
Chicago, United States MWRD Full timeSenior Systems Administrator Date Opened: 1/9/2026. Close Date: 1/23/2026 11:59:00 PM Qualification Date: January 23, 2026 Job Type: Original Entrance. Salary: Starting Annual Salary (TAM 18): $133,602.82. View this Recruitment: Senior Systems Administrator - #26-20004140-002
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Senior System Administrator
1 week ago
Chicago, United States Selby Jennings Full timeGet AI-powered advice on this job and more exclusive features. This range is provided by Selby Jennings. Your actual pay will be based on your skills and experience talk with your recruiter to learn more. Base pay range $130,000.00/yr - $150,000.00/yr Executive Search Consultant - Technology Salary: $100,000-150,000 base plus discretionary bonus An elite...
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Senior System Administrator
6 days ago
Chicago, United States CFS Full timeSenior System Administrator role at CFS Base Pay Range $90,000.00/yr - $100,000.00/yr Job Overview Title: Senior Systems Administrator Compensation: $90,000 - $100,000 Work Environment: Onsite (4 Days) Location: Downtown Chicago Essential Duties and Responsibilities Lead and assist with various IT projects including implementations regarding systems,...
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Senior System Administrator
1 week ago
Chicago, United States CFS Full timeSenior System Administrator role at CFS Base Pay Range $90,000.00/yr - $100,000.00/yr Job Overview Title: Senior Systems AdministratorCompensation: $90,000 - $100,000Work Environment: Onsite (4 Days)Location: Downtown Chicago Essential Duties and Responsibilities Lead and assist with various IT projects including implementations regarding systems, solutions,...
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Senior ServiceNow Systems Administrator
1 week ago
Chicago, IL, United States Next Step Systems LTD Full timeSenior ServiceNow Systems Administrator, Chicago, IL We have an opening for a Senior ServiceNow Systems Administrator. ServiceNow is the enterprise platform utilized globally as the system of truth for Change Requests, Configuration Management (CMDB), Incidents, IT Asset Management, Knowledge Management System, Problems, Service Requests, etc. Effective...
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Senior ServiceNow Systems Administrator
2 weeks ago
Chicago, IL, United States Next Step Systems LTD Full timeSenior ServiceNow Systems Administrator, Chicago, IL We have an opening for a Senior ServiceNow Systems Administrator. ServiceNow is the enterprise platform utilized globally as the system of truth for Change Requests, Configuration Management (CMDB), Incidents, IT Asset Management, Knowledge Management System, Problems, Service Requests, etc. Effective...
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Senior ServiceNow Systems Administrator
4 days ago
Chicago, IL, United States Next Step Systems LTD Full timeSenior ServiceNow Systems Administrator, Chicago, IL We have an opening for a Senior ServiceNow Systems Administrator. ServiceNow is the enterprise platform utilized globally as the system of truth for Change Requests, Configuration Management (CMDB), Incidents, IT Asset Management, Knowledge Management System, Problems, Service Requests, etc. Effective...
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Senior Systems Administrator
2 weeks ago
Chicago, United States S&C Electric Full timeSenior Systems Administrator As an S&C Electric team member, you'll work on projects that have real-world impact. You'll help transform the grid for resilient and reliable power worldwide. S&C has more than a 100-year history of innovation and has been 100% employee-owned since 2012. We continue this legacy as a trusted, forward-thinking leader in the...
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Senior Systems Administrator
6 days ago
Chicago, United States Chicago Staffing Full timeSenior Systems Administrator Metropolitan Water Reclamation District of Greater Chicago Under direction, supervises and/or is responsible for the implementation of the enterprise architecture and maintenance of the organizations computing technology environment. This also includes analysis, development, modification, installation, backup, testing and...
