Network Security Engineer

Chicago 13 days agoFull-time External
Negotiable
Seeking a Senior Network Security Engineer to spearhead a major network infrastructure standardization and security initiative. This is a unique opportunity for a highly autonomous and experienced engineer to own and redefine the network strategy for a multi-site enterprise. The ideal candidate will leverage their deep technical expertise in firewalls, hybrid cloud networking, and security to drive significant, long-term operational improvements. Key Responsibilities • Network Standardization: Lead a year-long project to evaluate, clean up, and standardize all network architecture, including IP subnetting and VLAN configurations, across multiple physical locations. • Security and Monitoring: Manage day-to-day firewall maintenance, review security logs, and implement a Security Information and Event Management (SIEM) solution to visualize and secure internal (east/west) network traffic. • Infrastructure Management: Oversee the migration to and maintenance of Cisco network devices and manage the operation of the hybrid cloud environment, including connectivity like ExpressRoutes to the cloud platform. Required Qualifications • Proven hands-on experience with Palo Alto firewall administration and maintenance. • Expertise in managing a hybrid network environment with strong cloud service (e.g., Azure/EntraID) integration. • Demonstrable competency in core networking concepts, including VLANs and IP subnetting. • Familiarity with network device patching, security hardening, and leveraging SIEM tools for security monitoring. • Demonstrated ability to function as a highly independent, senior resource capable of self-managing large-scale, strategic projects. This is a pivotal role for a security-minded Network Engineer to design, secure, and fully own the network infrastructure for a growing company. #11273