Top Network Engineer Jobs in Chicago, IL

Leads a team of 4–6 senior network engineers while providing hands-on support for complex customer environments. Oversees daily operations, escalations, incident and major incident management, root cause analysis, preventive measures, performance reviews, on-call scheduling, and workload distribution. Troubleshoots and optimizes Cisco, Nexus, Meraki, Palo Alto, Check Point, F5, and SAN technologies, while supporting monitoring, automation, patching, firmware updates, and hardware lifecycle management.

Own and operate a globally distributed VPN network, AWS control plane, backend infrastructure, and infrastructure-as-code tooling. Improve reliability, security, automation, observability, CI/CD, deployment safety, and cost efficiency across multiple providers. Troubleshoot production incidents, participate in 24/7 on-call, manage networking and VPN technologies, and replace manual operational processes with tested automation. Partner with engineering and product teams while ensuring high uptime, connection success, performance, and compliance.

Design, implement, and maintain MEMX’s low-latency trading network infrastructure. Configure network devices using Ansible and Python, monitor alerts, resolve incidents, perform root-cause analysis, and support customer connectivity turn-ups and tickets. Analyze and validate new products, implement secure end-user solutions with security teams, and coordinate with data center and circuit providers. The role requires expertise in distributed systems, routing protocols, multicast, network operating systems, timing protocols, packet analysis, firewalls, and optical networking.

Designs, implements, manages, and supports secure, highly available enterprise networks across global sites. Responsibilities include routing, switching, firewalls, wireless, SD-WAN, VPNs, cloud networking, automation, monitoring, lifecycle management, and advanced troubleshooting. The role serves as a senior escalation point, leads major incident responses, performs root cause analysis, and collaborates with infrastructure, cybersecurity, cloud, and operations teams on network reliability and modernization.

Own end-to-end network reliability across data centers, AWS, and GCP, including routing, switching, DNS, load balancing, service mesh, VPNs, circuits, and cross-connects. Automate network configuration with Ansible, Terraform, GitOps, CI validation, and IPAM. Engineer failover, observability, security hardening, client connectivity, and Kubernetes ingress while participating in an interrupt-contained on-call rotation.

Build and operate blockchain network infrastructure integrating protocols such as Bitcoin and Ethereum with internal services. Design reliable APIs, SDKs, data contracts, observability, and SLOs; lead multi-quarter chain integrations, architecture modernization, and migrations. Improve latency, reliability, and cost for high-throughput distributed systems while owning production services and on-call responsibilities.

Provides senior-level technical support for enterprise customers using Aviatrix’s multicloud networking and security products. Responsibilities include troubleshooting complex network environments, resolving high-priority issues, coordinating with engineering and sales, reporting product issues, improving support documentation and workflows, supporting production environments, and mentoring cloud network engineers. The role requires expertise in routing, BGP, IPsec VPN, Linux, networking products, cloud platforms, scripting, and automation.

Own and operate low-latency network infrastructure for trading systems, including colocation connectivity, exchange feeds, L2/L3 topology, BGP and OSPF routing, PTP synchronization, firewall policies, automation, packet analysis, documentation, and incident response. The role involves designing infrastructure from scratch, managing vendors, building Python tooling, and participating in on-call support within a small network engineering team.

Designs, implements, and supports complex telecommunications transport and network infrastructure. Responsibilities include architecture, high-availability design, troubleshooting, monitoring, optimization, documentation, KPI definition, project coordination, escalation management, and technical planning. The engineer provides final design specifications, supports long-term architecture, mentors junior staff, and delivers technical direction across multiple departments. Occasional travel, shift work, and after-hours emergency support may be required.

Staff Network Engineer responsible for designing, integrating, automating, and supporting complex on-premises and multi-cloud network environments. The role leads network and cloud connectivity projects, develops infrastructure-as-code and automation, troubleshoots high-severity incidents, optimizes network performance and costs, maintains engineering documentation, and mentors network engineers. Responsibilities include routing, switching, security, load balancing, observability, capacity modeling, cloud integration, and 24x7 mission-critical support.

Owns and optimizes resilient, ultra-low-latency network and physical data-center infrastructure for institutional trading across cloud and on-premises environments. Designs routing, multicast, segmentation, firewall, VPN, telemetry, and automation systems. Leads production changes, incident response, failover testing, maintenance, and on-call support for 24/7 trading platforms. Mentors engineers and partners with SRE, product, and trading-system teams to improve reliability and developer velocity.

Provides advanced network engineering and firewall expertise in a managed services environment. Owns complex incident resolution, root cause analysis, network project delivery, solution design, implementation, change validation, Palo Alto configuration, network hardening, legacy environment optimization, documentation, and technical mentorship. The role is remote from Brazil and requires fluent English, extensive enterprise networking experience, and deep Palo Alto Networks expertise.

Designs, deploys, tests, upgrades, and sustains enterprise WAN infrastructure supporting DLA, NIPR, SIPR, and DISN environments. Develops network requirements, specifications, architecture drawings, configurations, test plans, readiness reports, and executive recommendations. Performs Tier II/III troubleshooting, laboratory assessments, interoperability validation, technology evaluations, and network refresh planning. Coordinates with government customers, project managers, and representatives to deliver secure and reliable network solutions. Requires extensive routing, VPN, wireless, IPv6, network defense, and telecommunications expertise.

Designs, deploys, tests, documents, and supports enterprise WAN and network technologies for the Defense Logistics Agency. Responsibilities include NIPR and SIPR interoperability, IPv4/IPv6 transitions, technology refreshes, network troubleshooting, laboratory assessments, network documentation, configuration artifacts, and coordination with government stakeholders. The role requires active CCNP Enterprise certification, Check Point certification, DoD IAT Level III certification, five years of progressive IT experience, U.S. citizenship, and an IT-I Secret clearance.

Leads the design, implementation, and support of complex internal, external, hosted, and cloud network infrastructure. Manages WAN/LAN connectivity, routers, switches, firewalls, monitoring tools, remote access solutions, and network efficiency initiatives. Participates in security audits and resolves network vulnerabilities. Requires advanced networking experience with Cisco hardware, VMware, F5, InfoBlox, Cisco ISE, Palo Alto firewalls, and related technologies.

Ensure reliability, scalability, and usability of network infrastructure for Akamai Connected Cloud. Define requirements and SLOs, build automation and CI/CD pipelines, collaborate with dev/QA to improve code and stability, troubleshoot complex network issues (on-call), and mentor teammates while driving architectural standards.

Designs, implements, supports, and optimizes high-availability IP/MPLS, carrier Ethernet, cellular, and video transmission networks. Responsibilities include capacity planning, bandwidth forecasting, outage troubleshooting, network monitoring, infrastructure documentation, escalation management, project coordination, and continuous improvement. The role provides technical direction to junior engineers and technicians, supports telecommunications engineering projects, and applies standards for availability, redundancy, scalability, efficiency, and security.

Lead the technical direction of Attentive’s compute and networking platform. Build reusable AWS infrastructure, Kubernetes systems, APIs, and self-service tools while improving reliability, scalability, cost efficiency, security, and developer productivity. Own complex cross-team initiatives from design through production, diagnose sophisticated infrastructure issues, improve CI/CD and observability, mentor engineers, and establish effective AI-assisted development practices.

Provides enterprise technical leadership for cloud and network modernization across DoD environments. Engineers multi-cloud integrations, secure connectivity, cloud access points, routing and switching, data center technologies, F5 ADC solutions, and Zero Trust architectures. Leads migration planning, compliance with DoD security frameworks, Tier 3/4 troubleshooting, technical documentation, executive recommendations, and cross-disciplinary initiatives. The hybrid role supports DLA and requires periodic onsite work for NIPR/SIPR operations.

Own the architecture, delivery, roadmap, and operational health of a network solutions engineering team. Partner with Product to scope and deliver predictable software, maintain high engineering and DORA standards, apply AI-assisted development, manage dependencies, participate in on-call, handle incidents, develop engineers, and lead hiring. The role remains hands-on, requiring recent coding, code review, technical decision-making, and ownership of networking products including load balancing, switching, firewalls, VPN, and VPC.

Delivers post-sales network engineering services, including requirements assessment, solution design, equipment staging, configuration, testing, deployment, documentation, and client coordination. Manages complex data center networking environments involving routers, switches, firewalls, load balancing, DMZs, DDI, routing protocols, and modern switching architectures. Collaborates with clients, vendors, Smart Hands, project managers, and internal teams to meet service-level objectives, resolve issues, improve deployment processes, and enhance service delivery.

As a Network Engineer, you will resolve network issues, improve operations through automation, mentor juniors, and interact with clients.

Design and evolve ultra-low-latency global networks across data centers, colocation, and cloud. Lead routing, scalability, lab validation, automation (Python), observability, and high-complexity migrations while mentoring engineers and producing regulatory and operational documentation.

The Senior Lead Network Engineer will enhance and maintain large-scale network infrastructure, advise on hardware and software, conduct testing, and provide training.

Manage and optimize high-bandwidth, low-latency VFX network infrastructure supporting render farms, storage, cloud rendering, artist collaboration, and remote workstations. Configure AWS Deadline Cloud, troubleshoot Maya and Arnold rendering, build asset-transfer and per-show environment systems, optimize Linux and Windows pipelines, and document architecture and procedures. The role requires strong Python and Bash scripting, networking, storage, systems administration, render-farm, and VFX pipeline expertise.