Network Engineer

Qorali; Chicago (IL); On-site; USD 100,000 - 140,000; Full time

Job summary

Qorali is partnering with a leading financial markets technology organization to recruit an experienced Network Engineer. You will support mission-critical enterprise and data center networking environments, including Cisco routing/switching, ACI data centers, and hybrid cloud networking across AWS and Azure.

The role requires hands-on expertise with LAN/WAN, DNS, DHCP, IPAM, and strong collaboration with security and infrastructure teams to ensure high availability and performance.

Qualifications

• Extensive experience managing enterprise networks in large-scale environments.
• Deep knowledge of routing and switching with BGP, OSPF, IS-IS, MPLS, and VPN technologies.
• Hands-on Cisco platforms IOS, NX-OS, Nexus, Catalyst, and XR management.
• Experience with Cisco ACI data center environments.

Responsibilities

• Support and enhance enterprise network infrastructure across LAN, WAN, data center, and cloud environments.
• Administer and troubleshoot Cisco routing and switching platforms (IOS, NX-OS, XR).
• Support and maintain Cisco ACI environments and lifecycle management.

Skills

BGP

OSPF

IS-IS

MPLS

Cisco IOS

Cisco NX-OS

Cisco XR

Cisco ACI

LAN/WAN

DNS/DHCP/IPAM

Hybrid cloud

Packet analysis

Tools

Cisco Firepower (FTD/FMC)

Job description

We are partnering with a leading financial markets technology organization that plays a critical role within the global financial ecosystem. As the business continues to invest in the modernization, security, and scalability of its infrastructure, they are seeking an experienced Network Engineer to join a highly collaborative team responsible for supporting mission-critical enterprise and data center networking environments.

Key Responsibilities

• Support and enhance enterprise network infrastructure across LAN, WAN, data center, and cloud environments.
• Administer and troubleshoot Cisco routing and switching platforms including IOS, NX-OS, and XR technologies.
• Support and maintain Cisco ACI environments, including network segmentation, connectivity, and lifecycle management.
• Manage and optimize routing protocols including BGP, OSPF, and IS-IS across complex enterprise networks.
• Monitor, troubleshoot, and resolve network incidents, performance issues, and infrastructure outages.
• Support firewall technologies including Cisco Firepower (FTD), VPN connectivity, and network security initiatives.
• Participate in network upgrades, migrations, deployments, maintenance activities, and technology refresh projects.
• Support hybrid cloud networking across AWS and Azure environments.
• Manage network services such as DNS, DHCP, IPAM, and enterprise connectivity solutions.
• Work closely with vendors, carriers, security teams, and infrastructure engineers to deliver reliable network services.
• Perform packet capture analysis, root cause investigations, and network performance optimization.
• Contribute to documentation, operational standards, governance processes, and continuous improvement initiatives.

Technical Skills

• Strong experience supporting enterprise network infrastructure in large-scale environments.
• Advanced knowledge of routing and switching concepts including BGP, OSPF, IS-IS, MPLS, and VPN technologies.
• Hands-on experience with Cisco platforms including IOS, NX-OS, Nexus, Catalyst, and XR.
• Experience administering and supporting Cisco ACI data center environments.
• Experience with Cisco Firepower (FTD/FMC) and enterprise firewall technologies.
• Strong understanding of LAN, WAN, DNS, DHCP, and IPAM technologies.
• Experience supporting hybrid cloud networking across AWS and/or Azure.
• Strong troubleshooting skills including packet analysis, network diagnostics, and performance tuning.
• Experience with network monitoring and management platforms.
• Knowledge of network security, segmentation, governance, and compliance best practices.
• Exposure to automation technologies such as Python, Ansible, GitHub, or similar tooling.
• Experience delivering infrastructure upgrades, migrations, and modernization projects.
• Strong communication skills with the ability to collaborate across technical and business teams.
• Experience working within highly available, mission-critical environments.