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7 results for Network Security Administrator in Chicago, IL

Network Engineer

Barrington, IL
onsite
Temporary / Contract
45 - 55 USD / Hourly
We are looking for a skilled Network Engineer to support enterprise network operations and infrastructure projects in Deer Park, Illinois. This Long-term Contract position is ideal for someone who is comfortable working across production and data center environments, combining technical troubleshooting with hands-on deployment work. The role will focus on maintaining reliable connectivity, improving network performance, and contributing to site-based infrastructure initiatives in a fast-moving setting. Responsibilities: • Maintain and support enterprise network environments that include Cisco-based routing, switching, firewall, and data center technologies. • Perform physical network deployment tasks such as installing equipment, racking hardware, connecting cabling, and completing patching activities within data center spaces. • Diagnose and resolve network performance and connectivity problems across routers, switches, and security platforms to minimize operational disruption. • Assist with infrastructure projects involving hardware upgrades, network expansion efforts, and data center relocation or migration activities. • Coordinate implementation windows and cutover activities to ensure changes are executed accurately and with limited downtime. • Configure and support core networking functions including VLANs, routing protocols, switching operations, and secure traffic handling practices. • Work closely with project teams and technical stakeholders to deliver network changes within demanding timelines and project schedules.
2026-09-01T00:00:00Z

Network Engineer

Chicago, IL
onsite
Permanent / Full Time
110000 - 135000 USD / Yearly
We are looking for an experienced Network Engineer to support and enhance enterprise networking operations in Chicago, Illinois. This role focuses on building reliable, secure connectivity across on-premises and cloud-based environments while improving visibility, automation, and operational performance. The ideal candidate will be comfortable working in a fast-paced support setting and will bring strong technical depth across routing, firewalls, wireless infrastructure, and network monitoring. MUST HAVE SOLAR WINDS EXPERIENCE. Responsibilities:• Design and deploy scalable network solutions across campus, wireless, SD-WAN, and cloud environments to meet business and operational needs.• Maintain and troubleshoot complex multi-vendor infrastructure, resolving incidents and service requests within a high-volume, ticket-driven support model.• Strengthen network security by addressing vulnerabilities, coordinating remediation activities, and applying secure configuration standards across network platforms.• Administer and optimize routing, switching, and perimeter security technologies, including Cisco routers, Cisco ASA, and Palo Alto firewalls.• Configure and support dynamic routing protocols such as BGP to ensure resilient and efficient connectivity between internal and external networks.• Develop scripts and automation tools that streamline repetitive operational tasks, improve consistency, and reduce manual intervention.• Implement monitoring and observability capabilities that provide actionable insight into network health, performance, and service availability.• Partner with cross-functional teams to support infrastructure improvements, document technical designs, and advance network operational maturity.
2026-09-09T00:00:00Z

Network Engineer

Chicago, IL
onsite
Temporary / Contract
50 - 60 USD / Hourly
We are looking for a Network Engineer to support and maintain critical enterprise networking operations for a real estate property and facilities management environment. This long-term contract opportunity is ideal for a hands-on, detail-oriented individual who can monitor network health, troubleshoot production issues, and deliver dependable support across a complex infrastructure. The role requires strong technical judgment, clear communication, and the ability to manage incidents efficiently while partnering with broader engineering teams when advanced support is needed. Responsibilities: • Monitor network availability and performance using SolarWinds, responding to alerts and identifying issues before they disrupt business operations. • Administer and troubleshoot Cisco switching environments to maintain reliable connectivity across enterprise locations. • Support, configure, and investigate security and traffic issues involving Palo Alto firewalls in a live production setting. • Diagnose network incidents independently, take corrective action, and restore service within established support expectations. • Document work, track progress, and manage issue resolution through the ServiceNow ticketing platform. • Escalate high-impact or technically complex problems to network engineering resources with clear findings and supporting details. • Provide operational support for enterprise network infrastructure, including routing, firewall, and switching components. • Communicate effectively with internal stakeholders to provide status updates, explain technical issues, and deliver a high level of customer service.
2026-09-04T00:00:00Z

Network Architect

Chicago, IL
onsite
Permanent / Full Time
130000 - 150000 USD / Yearly
Senior Healthcare IT Infrastructure Engineer responsible for secure, HIPAA-compliant infrastructure across network, Microsoft 365/Azure/Entra, endpoints, cybersecurity, and clinical systems. Serves as the senior technical escalation point while supporting healthcare compliance, PHI protection, and infrastructure reliability.
2026-09-10T00:00:00Z

Systems Administrator

Chicago, IL
remote
Temporary / Contract
47.5 - 55 USD / Hourly
We are looking for an experienced Systems Administrator to support and enhance a cloud-focused infrastructure environment in Chicago, Illinois. This Long-term Contract position is ideal for a detail-oriented individual who excels in Microsoft Azure administration, Windows Server support, and identity management while delivering dependable service across distributed teams. The role will focus on maintaining secure, high-performing systems, resolving technical issues, and contributing to infrastructure improvements that strengthen day-to-day operations. Responsibilities: • Oversee the health, availability, and maintenance of Microsoft Azure environments, ensuring cloud resources remain secure, stable, and optimized. • Provision, configure, and manage core Azure components such as virtual machines, storage services, and virtual networks to meet operational needs. • Perform routine administration for Windows Server platforms hosted in Azure, including legacy and current versions used across the environment. • Administer identity and access services through Microsoft Entra ID, Active Directory, and Group Policy, including user provisioning and permissions management. • Investigate and resolve infrastructure, operating system, application, and connectivity issues while providing advanced support for escalated service requests and incidents. • Contribute to backup, disaster recovery, and business continuity activities to help protect systems and support recovery readiness. • Assist with cloud infrastructure initiatives, including modernization efforts and migration-related tasks, as part of broader technology projects. • Create and maintain clear technical documentation, operational procedures, and support materials for infrastructure services. • Participate in on-call support as needed and collaborate with IT teams and business stakeholders serving users across multiple time zones. • Identify opportunities to improve monitoring, automation, system performance, and operational processes, including support for PowerShell-based scripting efforts.
2026-09-04T00:00:00Z

AI Network Architect

Chicago, IL
onsite
Permanent / Full Time
175000 - 200000 USD / Yearly
We are seeking an experienced Network Architect to design, optimize, and future-proof our enterprise network environment with a strong focus on scalability, security, performance, and readiness for emerging AI-driven technologies. This role requires deep expertise in Cisco architecture, advanced routing and switching, and modern network design principles to support a growing and evolving business. Based on general knowledge. Key Responsibilities<ul><li>Design and lead enterprise network architecture across LAN, WAN, wireless, data center, and cloud-connected environments. Based on general knowledge.</li><li>Develop network strategies that support AI futureproofing, including scalable bandwidth, low-latency design, resilient connectivity, and infrastructure readiness for automation and data-intensive workloads. Based on general knowledge.</li><li>Lead architecture standards, roadmaps, and modernization initiatives across core networking platforms. Based on general knowledge.</li><li>Serve as the subject matter expert for Cisco-based environments, including routing, switching, security, SD-WAN, and wireless technologies. Based on general knowledge.</li><li>Evaluate current network performance, identify gaps, and recommend improvements for capacity, resilience, and operational efficiency. Based on general knowledge.</li><li>Partner with infrastructure, security, cloud, and application teams to ensure integrated and secure network solutions. Based on general knowledge.</li><li>Design high-availability and disaster recovery network solutions to support business continuity. Based on general knowledge.</li><li>Guide implementation teams on best practices, configuration standards, and troubleshooting for complex network initiatives. Based on general knowledge.</li><li>Maintain architecture documentation, diagrams, standards, and technical recommendations for leadership and engineering teams. Based on general knowledge.</li><li>Assess new technologies and vendor solutions that align with long-term network and business strategy. Based on general knowledge.</li></ul>Required Qualifications<ul><li>7+ years of progressive network engineering and architecture experience, including enterprise-level design responsibility. Based on general knowledge.</li><li>Deep hands-on experience with Cisco networking technologies in complex enterprise environments. Based on general knowledge.</li><li>Strong expertise in routing, switching, BGP, OSPF, VLANs, QoS, VPNs, firewalls, wireless, and network segmentation. Based on general knowledge.</li><li>Experience designing highly available, secure, and scalable networks across on-premises and cloud-connected environments. Based on general knowledge.</li><li>Knowledge of network architecture considerations for AI, automation, and future-state digital transformation initiatives. Based on general knowledge.</li><li>Strong understanding of network security principles, access controls, and performance optimization. Based on general knowledge.</li><li>Proven ability to create architectural standards, lead network modernization, and support enterprise growth. Based on general knowledge.</li><li>Excellent communication skills with the ability to present technical strategy to both technical and non-technical stakeholders. Based on general knowledge.</li></ul>
2026-08-24T00:00:00Z

Systems Engineer

Barrington, IL
onsite
Temporary / Contract
45 - 55 USD / Hourly
We are looking for an experienced Systems Engineer to support enterprise infrastructure initiatives in Deer Park, Illinois. This Long-term Contract opportunity is ideal for a detail-oriented candidate who can manage large Windows-based environments, maintain reliable system performance, and contribute to data center operations in a complex setting. The role requires strong technical depth across server administration, identity services, virtualization, and core infrastructure platforms. Responsibilities: • Lead large-scale Windows server migration efforts, including transitions from VMware environments to Hyper-V across extensive server estates. • Administer and maintain Windows Server platforms, Active Directory services, Azure Active Directory, Group Policy, and related enterprise system configurations. • Support deployment, installation, and expansion activities within the data center while helping ensure stable operations and limited service interruption. • Manage and troubleshoot enterprise server hardware, Cisco-based infrastructure components, and Pure Storage solutions within production environments. • Coordinate system cutovers, infrastructure changes, and implementation tasks in partnership with technical teams and project stakeholders. • Investigate and resolve complex system issues by applying structured troubleshooting methods across server, virtualization, and infrastructure layers. • Create and maintain clear technical documentation covering environment configurations, procedures, and project-related updates. • Provide operational support for core Microsoft technologies, including Exchange and Citrix-related environments, as needed within the broader infrastructure landscape.
2026-09-01T00:00:00Z