Top Network Engineer Jobs in Denver & Boulder, CO

Design, configure, test, and maintain WAN/LAN and classified enterprise networks. Install and troubleshoot switches, routers, firewalls, cabling, and hardware. Implement upgrades, network security measures, documentation, and provide technical support and mentoring. Support may include after-hours work and occasional travel.

Manage and integrate complex systems, providing communications solutions, maintaining cloud infrastructure, assessing systems, and leading technical programs while ensuring compliance and data security.

Perform L3 network troubleshooting and RCA on production enterprise networks, review telemetry/logs/configs, label and annotate network behaviors for ML training, and help define schemas and data pipelines to support AI-driven infrastructure.

The Network Engineer will support DARPA by managing DCO capabilities, troubleshoot networks, and deploy sensor platforms in various environments.

Design, implement and operate IP/MPLS microwave backhaul and peering networks (BGP/OSPF/VRF) supporting voice, data and IP Telephony. Deploy and configure vendor routers/switches/firewalls (Coriant, Aviat, Cisco, Juniper), VMware and Linux cloud elements, security (TACACS+/AAA, firewalls), monitoring (Splunk, Elastic, Wireshark) and automation scripting. Provide NOC/field support, 24/7 escalations, documentation, DR planning, mentoring and acceptance testing.

Lead architecture, design, deployment, and operations of corporate LAN/WAN, wireless, OT core, and physical security networks across global data center campuses. Own network lifecycle from planning through commissioning, drive standards, automation, resiliency, carrier strategy, and resolve complex escalations while partnering with construction, operations, vendors, and cross-functional teams.

As a Staff Network Engineer at D-Wave, you'll design, implement, and maintain networking infrastructure, manage AWS environments, and ensure network security, while mentoring junior team members.

Lead architecture, design, and deployment of cloud and hybrid network solutions. Design/configure routers, switches, firewalls, VPNs; manage segmentation, routing (BGP/OSPF), NAT, monitoring, troubleshooting, and on-call support.

Support C2BMC network security by planning, deploying, integrating, and testing network upgrades; develop cyber-secure device configurations, ensure STIG hardening and DoD RMF compliance, conduct research, document designs, run cyber protocols, and assist during operational events.

The Network Engineer will label, annotate, and structure data from networks, supporting the development of AI-driven infrastructure solutions.

Design, deploy, and operate large-scale RDMA/RoCE network fabrics for OCI AI/HPC customers. Lead lifecycle and incident management, perform root cause analysis, develop automation and tooling, collaborate with product and vendor teams, and mentor junior engineers to improve reliability and operational readiness.

Design, build, and manage low-latency, high-performance networking infrastructure for large-scale AI training in Azure. Test and validate devices and firmware, automate deployments, monitor telemetry, troubleshoot live site incidents, participate in on-call duties, and guide datacenter staff on secure hardware operations.

Provide Tier 1 network engineering support for government customers: troubleshoot connectivity and hardware issues, monitor network health, perform routine maintenance tasks, escalate complex incidents to higher tiers, document actions in ticketing systems, and assist end users with basic networking needs.

Design and maintain large-scale networks, automate network management with Go and Python, and collaborate with engineering teams to optimize performance.

Operate and maintain IP networking in a 24/7 SaaS environment. Troubleshoot network issues, manage service providers and equipment, perform capacity planning, execute network changes, assist with network activations, and participate in projects to improve WAN/connectivity and integrate partners and acquisitions.

Lead design, implementation, automation, and security operations for Azure cloud networking in FedRAMP High/IL4 environments. Build modular IaC (Terraform, ARM, Bicep), implement advanced networking and firewall controls, mentor team members, participate in on-call support, and translate compliance controls into enforceable guardrails.

Lead and support a global Army network migration and operations: assess legacy environments, design/implement secure SD-WAN/MPLS/VRF routing, optimize performance, enforce DoD security/STIGs, document designs, and direct operations support staff.

Provide first-line network support: troubleshoot connectivity and hardware issues, monitor network performance, perform routine maintenance, escalate complex incidents to higher tiers, document ticket resolutions, and assist end users with basic networking needs.

Lead day-to-day network operations and a team of network engineers. Provide hands-on support for complex troubleshooting and implementations across data center, WAN/Internet, cloud connectivity, wireless, load balancers, firewalls, and circuits. Own incident, change, and problem management, vendor coordination, documentation, and continuous improvement to meet SLAs, reduce MTTR, and ensure operational readiness. Support budgeting input and on-call/after-hours incident response.

Design, implement, and support enterprise cloud network infrastructure across Azure, OCI, and GCP. Manage firewalls, Cisco devices, VPNs, VPCs, and virtual networking; deploy configurations with Terraform (including AWS security groups); enforce STIG/IAVM compliance; monitor performance; provide Level-2/3 troubleshooting and participate in 24/7 on-call rotation.

Support, maintain, and improve enterprise LAN/WAN/wireless, SD-WAN, VPN/remote access, and firewall environments. Troubleshoot connectivity, monitor network health, execute upgrades and changes, maintain documentation, collaborate with stakeholders and vendors, and provide occasional on-call and voice system support.

Designs, implements, and maintains cloud and on‑prem network infrastructure with IaC (Terraform/CloudFormation/Ansible), supports AWS environments, builds CI/CD pipelines, authors technical documentation, troubleshoots escalations, and collaborates with Cloud Architects and product teams in a remote Agile environment.

Operate and lead data-center LAN infrastructure in a 24/7 SaaS environment. Own troubleshooting, incident response, and change management across Cisco Nexus, Palo Alto, and F5 platforms. Drive projects, architecture (VXLAN/EVPN), automation (Ansible, Terraform, Python), observability (Prometheus, Grafana, SolarWinds), and cloud networking (AWS, GCP). Mentor junior engineers, participate in on-call rotation, and define operational standards, reliability metrics (SLI/SLO), and preventive engineering.

Support and secure federal customer network, server, storage, backup, and application environments. Administer Windows servers, storage arrays, Commvault backups, Cisco switches, Oracle/SharePoint/Tableau/Java applications, and RPA (UiPath). Provide SME representation, dashboards, SQL/database support, accessibility testing (JAWS, WAVE), change control, and executive reporting with 60-minute response SLAs.

Support and troubleshoot large enterprise networks (switching, routing, firewalls, load balancers, SAN). Perform incident response, RCA, firmware/patch management, proactive monitoring, automation scripting, documentation, runbooks, stakeholder communication, and participate in on-call rotation.