Top Network Engineer Jobs in Chicago, IL

Leads the design, implementation, operation, security, and troubleshooting of enterprise LAN/WAN, data center, cloud, telecommunications, voice, and network infrastructure. Manages incidents, monitoring, automation, vendors, lifecycle changes, documentation, disaster recovery, compliance, and infrastructure projects. Provides technical leadership, trains team members, participates in on-call support, and maintains reliable connectivity across enterprise environments.

Leads full-stack engineering across distributed microservices and cloud-native systems. Provides technical leadership, architects scalable platforms, mentors engineers, shapes technology roadmaps, and delivers reliable solutions using modern programming languages, databases, containers, cloud platforms, APIs, CI/CD, infrastructure as code, and observability practices.

Provides operational support, maintenance, troubleshooting, security, and implementation for client network infrastructure. Responsibilities include resolving escalated tickets, designing and configuring networks, documenting infrastructure, coordinating with vendors, communicating with clients, mentoring junior engineers, and participating in on-call support. Requires at least three years of network engineering experience, knowledge of major networking vendors and cloud networking, and a CCNA, CCNP, Fortinet FCP, or equivalent experience.

Designs, implements, supports, and maintains enterprise wired and wireless network infrastructure, including Juniper and Cisco technologies. Responsibilities include network troubleshooting, performance and capacity planning, security collaboration, infrastructure roadmaps, documentation, vendor coordination, service desk support, project leadership, mentoring junior staff, and on-call support.

Build and lead full-stack software engineering initiatives using distributed microservices, cloud platforms, databases, APIs, and modern development frameworks. Provide technical leadership across Agile teams, define architectures and integration patterns, improve system performance, reduce technical debt, establish engineering standards, mentor developers, and influence technology strategy. The role supports regulatory needs and customer-facing financial products at scale.

Deploys, monitors, troubleshoots, and manages low-latency network infrastructure supporting high-frequency trading. Responsibilities include colocation and data center design, WAN connectivity, capacity planning, traffic optimization, maintenance, protocol troubleshooting, automation, monitoring, and technical debt reduction. The role requires expertise with routing and network protocols, LAN/WAN environments, performance monitoring, and network automation.

Designs, deploys, and operates scalable cloud networking infrastructure, including VPCs, VNets, hybrid connectivity, transit topologies, DNS, edge networking, and security controls. Requires strong traditional networking expertise, cloud platform experience, Terraform automation, Kubernetes networking knowledge, troubleshooting skills, and packet-level analysis. Collaborates with cross-functional teams, contributes to design and code reviews, and mentors junior engineers.

Leads software engineering projects and developers building cloud-based, full-stack solutions using distributed microservices. Designs service boundaries, APIs, reusable frameworks, and database integrations; establishes engineering standards; improves performance and reduces technical debt. The role requires technical leadership across Agile teams, collaboration with product managers and architects, mentoring engineers, and applying modern cloud, DevOps, testing, observability, and AI-assisted development practices.

Build and lead full-stack software engineering solutions for Capital One’s stored payment token platform. Develop Java-based backend APIs and cloud-hosted services using AWS, microservices, databases, containers, and modern frontend technologies. Lead technical initiatives, establish engineering standards, partner with architects and product managers, improve system performance, reduce technical debt, mentor engineers, and drive scalable, secure, and reliable solutions across Agile teams.

Designs, implements, supports, and improves enterprise Azure, hybrid, on-premises, and network security environments. Owns complex routing, switching, firewall, SD-WAN, cloud connectivity, and automation solutions. Provides L3 escalation support, incident triage, root cause analysis, client advisory, documentation, and technical leadership across managed services environments. Mentors engineers, improves standards and monitoring, supports migrations, and automates deployments using infrastructure-as-code and scripting tools.

Leads technical vision and hands-on engineering for high-volume global payment systems. Designs scalable, resilient distributed architectures, modernizes monoliths into microservices and event-driven platforms, establishes API and coding standards, and guides cloud, data, networking, and AI-enabled solutions. Mentors engineers, drives architectural reviews, collaborates across divisions, and ensures system performance, security, operability, and long-term platform strategy.

Provide customer-facing technical management and support for Nokia telecom cloud network environments. Configure and troubleshoot OpenStack and Kubernetes platforms, especially Nokia Container Services, across telco, distributed, and edge clouds. Support mobile core technologies, networking, monitoring, automation, cybersecurity, escalations, project coordination, and 24/7 emergency on-call operations. Communicate technical issues clearly and coordinate cross-functional resources to resolve customer problems.

Architects, deploys, and manages secure automated networking across AWS, Azure, and hybrid-cloud environments. Designs Spine-Leaf networks, optimizes Direct Connect and ExpressRoute connectivity, leads infrastructure-as-code practices with Terraform and Ansible, and drives multi-cloud network product vision. The role troubleshoots network and security issues, supports tier 3 on-call operations, collaborates with stakeholders, and creates technical documentation and knowledge-sharing presentations.

Leads technical vision and hands-on engineering for high-volume, low-latency payment systems. Responsibilities include architecting scalable distributed platforms, modernizing monoliths into microservices and event-driven systems, defining API and design standards, ensuring performance and operability, mentoring engineers, leading cross-domain initiatives, and partnering with product and architecture leaders on long-term platform strategy.

Leads multiple software engineering teams building high-volume, resilient payment platforms. Owns technical strategy, enterprise architecture, cloud deployment, system scalability, engineering standards, talent development, and delivery across full-stack technologies. Partners with product and executive leaders to align roadmaps, improve engineering practices, operate distributed systems, and drive innovation using cloud, automation, and AI-enabled development.

Leads technical vision and hands-on engineering for high-volume global payment systems. Designs scalable, resilient distributed platforms; modernizes monoliths into microservices and event-driven architectures; establishes API and design standards; mentors engineers; drives architectural reviews, platform transformations, data migrations, and AI-enabled development across engineering and product organizations.

Supports Nokia cloud and core network environments across LTE, 5G, CNF, VNF, and IP connectivity platforms. Configures and troubleshoots OpenStack and Kubernetes-based telco clouds, especially Nokia Container Services. Manages networking, servers, storage, monitoring, automation, cybersecurity, escalations, and customer-facing technical communication. Provides 24/7 emergency on-call support, coordinates cross-functional resolution efforts, and applies project management and operational processes.

Designs, implements, administers, and optimizes Avalon's multi-region AWS network infrastructure. Responsibilities include architecting VPCs, routing, connectivity, security, resiliency, monitoring, disaster recovery, capacity planning, and network automation. The role collaborates with infrastructure, security, application, and DevOps teams, troubleshoots complex issues, documents architectures and runbooks, and provides technical leadership and training. Remote work is available with quarterly travel to Tampa, Florida.

Leads full-stack software engineering projects and developer teams building distributed microservices and cloud-based systems. Develops robust solutions using modern programming languages, databases, containers, and AWS services. Provides technical leadership across Agile teams, establishes engineering standards, mentors developers, partners with architects and product managers, reduces technical debt, improves system performance, and influences long-term technology strategy.

Operates and designs hybrid on-premises and AWS network infrastructure, including VPCs, Transit Gateway, VPN, Direct Connect, routing, firewalls, and security controls. Leads CIDR remediation, maintains network documentation and IPAM records, automates infrastructure with Terraform, Ansible, and Python, and supports FedRAMP-aligned environments. The role coordinates Network and Cloud Ops teams, mentors engineers, manages vendors, handles Tier 1 and Tier 2 escalations, and participates in a 24x7 on-call rotation.

Designs reference architectures for AI and data center networks, including BGP, EVPN/VXLAN, RoCEv2, and QoS. Builds and operates labs to qualify switches, NICs, and network operating systems; tests interoperability and performance; reproduces customer issues; and diagnoses routing, congestion, packet loss, MTU, and latency problems across GPU, fabric, and storage paths. Documents best practices, develops automation, collaborates with vendors and internal teams, and feeds findings into product development.

Supports the design, configuration, operation, maintenance, and troubleshooting of enterprise and GCP network infrastructure. Responsibilities include routing, DNS, firewalls, VPNs, load balancing, certificates, segmentation, monitoring, incident response, root cause analysis, migrations, deployments, documentation, and change management. The role coordinates with cloud, security, DevSecOps, application, and operations teams to maintain secure, highly available connectivity across environments.

Leads technical vision and hands-on engineering for high-volume global payment systems. Designs scalable, performant, secure distributed architectures; modernizes monoliths into microservices and event-driven platforms; establishes API and coding standards; and drives cross-divisional technology initiatives. Mentors engineers, collaborates with architecture and product leaders, evaluates non-functional requirements, and contributes to cloud, data, AI, and payment-network strategy.

Designs and evaluates large-scale, multi-vendor fiber access networks using advanced PON technologies. Architects integration with routing, IP/MPLS, and optical transport systems; leads OLT and ONT platform evaluations; reviews high-level designs and migration strategies; provides complex troubleshooting and client advisory support; and mentors junior network engineers. The role also develops client-facing engineering deliverables and supports technical engagements, budgets, timelines, and vendor coordination.

Designs, develops, and operates enterprise integration solutions connecting applications, APIs, data sources, and cloud platforms. Leads complex integrations across Salesforce, GCP, and other systems; defines integration standards and reference architectures; ensures scalability, resilience, availability, security, and observability; collaborates with product, software, data, infrastructure, and architecture teams; and mentors engineers while advancing automation and modern engineering practices.