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3 results for Wireless Network Engineer in Chicago, IL

Network Engineer

Schaumburg, IL
onsite
Temporary / Contract
71.25 - 82.5 USD / Hourly
We are looking for an experienced Network Engineer to support enterprise networking and security initiatives in Schaumburg, Illinois. This Long-term Contract position focuses on designing, administering, and optimizing secure network environments across firewall, wireless, and cloud-managed platforms. The role requires a hands-on, detail-oriented individual who can strengthen connectivity, improve visibility, and help deliver infrastructure changes with minimal disruption. Responsibilities: • Administer and enhance network security platforms using Fortinet solutions, including firewall, endpoint access, and analytics tools. • Manage Aruba-based switching, wireless, and centralized management environments to maintain reliable campus and branch connectivity. • Plan and execute secure connectivity updates, including IPsec-related changes, pilot deployments, and production implementations. • Integrate network and security systems with identity services such as Active Directory and Entra ID to support controlled access. • Oversee certificate usage and lifecycle processes to help maintain trusted authentication across network services. • Monitor logs, generate operational reporting, and troubleshoot issues spanning firewalls, routing, wireless, and security infrastructure. • Create and maintain technical documentation, including standard procedures, operational runbooks, and knowledge transfer materials. • Collaborate with technical teams to support cloud-managed networking and security platforms while improving performance and resilience.
2026-06-15T00:00:00Z

Infrastructure & Security Engineer

Naperville, IL
onsite
Permanent / Full Time
120000 - 148000 USD / Yearly
Our client is seeking an experienced Infrastructure Security Engineer to support and secure a hybrid Microsoft environment spanning both on-premises and cloud platforms. This role is ideal for a hands-on professional with deep experience across traditional server and network infrastructure, along with responsibility for enterprise security tooling, threat monitoring, and ongoing security operations. The organization is currently in a hybrid state and actively transforming to a more cloud-centric environment, so this individual will play a key role in both day-to-day operational security and longer-term modernization efforts. Based on general knowledge. Key Responsibilities<ul><li>Manage and secure core infrastructure, including servers, networks, firewalls, switches, VPNs, and related systems in a hybrid on-premises and cloud environment. Based on general knowledge.</li><li>Administer, maintain, and optimize security tools such as endpoint protection, vulnerability management, SIEM, email security, identity and access management, and monitoring platforms. Based on general knowledge.</li><li>Monitor infrastructure and security events, investigate alerts, respond to incidents, and support remediation efforts. Based on general knowledge.</li><li>Partner with infrastructure and leadership teams to strengthen security controls across Microsoft technologies, including Active Directory, Azure, Microsoft 365, and related platforms. Based on general knowledge.</li><li>Support the company’s transition from traditional on-premises infrastructure to cloud-based solutions by helping design and implement secure architectures and best practices. Based on general knowledge.</li><li>Perform vulnerability assessments, patch management coordination, system hardening, and access reviews across servers, endpoints, and network devices. Based on general knowledge.</li><li>Develop and maintain security documentation, standards, procedures, and incident response processes. Based on general knowledge.</li><li>Assist with compliance, audit readiness, and security improvement initiatives. Based on general knowledge.</li><li>Collaborate with internal teams and third-party vendors to ensure reliable infrastructure performance and effective security coverage. Based on general knowledge.</li></ul>
2026-06-04T00:00:00Z

Systems Engineer

Glenview, IL
onsite
Temporary / Contract
55 - 65 USD / Hourly
We are looking for an experienced Systems Engineer to support and enhance a complex enterprise infrastructure environment in Illinois. This long-term contract position is ideal for a hands-on specialist who can manage core Microsoft, virtualization, and cloud technologies while maintaining stability, security, and operational efficiency. The role will focus on Windows systems engineering, hybrid identity administration, platform upgrades, and infrastructure automation across on-premises and Azure environments. Responsibilities: • Administer and improve enterprise Windows Server infrastructure, ensuring reliable performance, security, and alignment with operational standards. • Lead VMware vSphere lifecycle activities, including environment assessments, version upgrades, and workload movement to alternate hypervisor platforms when required. • Manage Active Directory in complex multi-forest environments, including organizational unit structure, delegated administration, trust design, Kerberos policy configuration, and directory cleanup efforts. • Support Azure infrastructure services by handling IaaS resources, hybrid connectivity, identity integration, backup operations, and subscription-level administration. • Oversee enterprise messaging and endpoint management platforms such as Exchange and SCCM, maintaining service availability and supporting ongoing enhancements. • Provision and maintain NetApp storage resources, administer datastores, and coordinate storage integration with virtualized environments. • Develop and maintain production-quality PowerShell scripts to automate routine administration, streamline operational tasks, and improve consistency. • Execute infrastructure changes within established ITSM and change control frameworks, documenting implementation steps, risks, and validation outcomes. • Contribute to technical documentation and runbook development, including the effective use of AI-based tools to accelerate knowledge capture and operational readiness.
2026-06-30T00:00:00Z