Top Network Engineer Jobs in Denver & Boulder, CO

Leads the architecture, engineering, deployment, and reliability of nationwide 5G service-provider network infrastructure. Designs scalable multi-VRF, LAN/WAN/RAN, MPLS, segment-routing, IPv6, and SRv6 environments; supports data center fabrics and high-availability systems; develops automation using Python, Bash, Ansible, and zero-touch provisioning; and applies AI-driven predictive maintenance and anomaly detection. Provides technical leadership for network upgrades, expansions, testing, documentation, and 24x7 production support.

Designs, implements, maintains, and optimizes routed optical network and dark fiber infrastructure. Responsibilities include DWDM and routing design validation, optical performance tuning, capacity and reliability management, circuit lifecycle oversight, troubleshooting, stakeholder collaboration, and technical leadership. The role also uses automation and AI tools to modernize deployment workflows and improve network performance.

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.

Design, implement, and operate networking infrastructure for Azure Dedicated private and hybrid cloud environments. Responsibilities include hybrid connectivity, ExpressRoute, SDN solutions, third-party platform integration, network performance and security optimization, live-site operations, automation, observability, troubleshooting, and enabling migration and disaster recovery scenarios.

Provides onsite enterprise network engineering and technical support for Department of War communications and transport networks. Responsibilities include designing and configuring secure network architectures, integrating terrestrial, satellite, tactical, and cloud technologies, troubleshooting network incidents, supporting testing and exercises, maintaining documentation, and implementing cybersecurity controls compliant with DISA STIGs and RMF. The role requires Secret clearance, CCNA or CCNP certification, enterprise routing and switching experience, and up to 50% CONUS and OCONUS travel.

Install, configure, maintain, monitor, and troubleshoot enterprise network infrastructure supporting satellite control communications. Provide Level II enterprise and laboratory support; design and optimize LAN, WAN, software-defined networking, routing, switching, VPN, QoS, segmentation, high availability, and firewall solutions. Perform network upgrades, equipment installations, firmware updates, lifecycle replacements, and rack and cabling work while supporting DoD and NOAA sites worldwide.

Manages, maintains, upgrades, and troubleshoots Denver’s wired, wireless, network, and telephony infrastructure. Responsibilities include monitoring hardware, resolving outages, supporting Cisco WebEx Cloud Calling, performing IOS upgrades, addressing vulnerabilities, analyzing packet captures, troubleshooting voice circuits, managing ServiceNow requests, documenting changes, coordinating staff moves, and mentoring junior staff. The role requires on-site work, on-call support, cross-functional collaboration, and regular visits to City buildings.

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.

Support and improve large-scale network infrastructure for AI and HPC workloads. Responsibilities include production incident response, network fault resolution, on-call support, observability improvements, automation, documentation, customer collaboration, and reliability initiatives across multi-site GPU clusters.

Lead deployment, commissioning, validation, optimization, and production support for large-scale AI and HPC network fabrics. Configure Ethernet and InfiniBand networks, RDMA/RoCE, routing, switching, telemetry, and automation. Conduct acceptance testing, troubleshoot performance and hardware issues, resolve Tier 3 incidents, coordinate vendor escalations, and develop reliability standards, diagnostics, runbooks, and operational handoffs for GPU clusters.

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.

Design, plan, and document LAN/WAN network architectures; specify hardware/software (routers, switches, firewalls, load balancers, COMSEC); troubleshoot network faults; recommend hardware/software selections; evaluate new communications technologies; maintain Linux and Windows interoperability; support Cisco environments; travel to customer sites as required; maintain required security clearances and certifications.

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.

Deploys and operates classified terrestrial and cloud networks across on-premise, AWS GovCloud, and IL-6+ environments. Responsibilities include routing, switching, boundary protection, segmentation, encrypted communications, STIG implementation, RMF/ATO support, network documentation, and troubleshooting. The role also configures NSA Type 1 cryptographic devices, manages KEYMAT and CCI documentation, and collaborates with security, cloud, and engineering teams. An active Secret clearance and ability to obtain TS/SCI are required, with occasional travel to government and classified facilities.

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.

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 and integrates complex network systems across ground, space, and enterprise segments. Responsibilities include requirements management, network architecture, concept of operations, integration and verification testing, performance tracking, risk mitigation, COSMOS administration, deployment and release management, capacity planning, database coordination, and cybersecurity liaison work. The role supports classified environments, coordinates cross-functional teams, and may lead small network integration teams.

Designs, implements, and maintains large-scale distributed networks supporting a DoD Zero Trust program. Responsibilities include SD-WAN architecture, router, switch, and firewall administration, network upgrades, troubleshooting, traffic analysis, documentation, disaster recovery, standards compliance, and coordination with IT teams and vendors. The role serves as a Zero Trust network architecture subject matter expert, mentors junior engineers, and supports installations and migrations across multiple global locations.

Plans, deploys, monitors, secures, and maintains network infrastructure supporting 911 call center operations. Configures routers, switches, firewalls, VPNs, and related services; troubleshoots outages; performs upgrades and disaster recovery; maintains network documentation and performance reports; and provides technical support to staff, agencies, vendors, and partner networks. The role includes 24/7 on-call and remote support, multi-location network administration, and collaboration on network design and security compliance.

Designs, deploys, configures, and supports cloud network infrastructure across Azure, OCI, GCP, and AWS. Manages Palo Alto and Cisco firewalls, VPNs, routers, load balancers, subnets, security groups, and network access controls. Performs network monitoring, maintenance, upgrades, capacity planning, troubleshooting, and Level 2/3 support. Uses Terraform for infrastructure automation and supports EKS clusters, cloud security, IAM, STIGs, and vulnerability management. Participates in a required 24/7 on-call rotation.

Designs, documents, tests, secures, and transitions global CAN/LAN and WAN network infrastructure. Responsibilities include network hardware configuration, routing and switching implementation, maintenance planning, troubleshooting support, DISA STIG compliance, ATO acquisition, technical documentation, and supervision of network support specialists. The role also supports production network operations and modernization across a mission-focused government enterprise.

Supports LAN and WLAN network surveys, modernization design, cost analysis, configuration, installation, and implementation of routers, switches, wireless controllers, and access points. Assists with VLAN and IP migrations, cybersecurity compliance, implementation plans, documentation, and hardware materials lists. The role requires an active Secret clearance, U.S. citizenship, engineering education or equivalent experience, network certifications, and 60–75% domestic travel.

Leads the planning, design, installation, migration, testing, troubleshooting, and maintenance of LAN/WLAN and telecommunications networks. Configures routers, switches, wireless controllers, VLANs, and IP addressing; develops implementation plans, technical documentation, bills of materials, and cost analyses. The role requires active Secret clearance, U.S. citizenship, extensive network engineering experience, relevant Cisco, Juniper, or Ruckus certification, IAT Level II certification, and 60–75% travel.