Top Senior Network Engineer Jobs in Denver & Boulder, CO

Design, deploy, and operate enterprise network infrastructure across data centers and cloud (GCP, AWS, Azure). Manage VPCs, VPNs, BGP, F5 BIG-IP, hybrid connectivity, and observability. Build IaC and automation with Terraform, GitLab CI/CD, and Ansible. Maintain monitoring, documentation, and participate in on-call support for critical incidents.

Designs, deploys, secures, automates, monitors, and maintains multi-vendor network infrastructure supporting Blue Origin mission operations across multiple sites. Responsibilities include establishing standardized network designs, developing automation frameworks, configuring network devices, resolving performance issues through root-cause analysis, and managing capacity and infrastructure lifecycles across enterprise and industrial environments.

Designs and documents global LAN architectures for campus, engineering, warehouse, and manufacturing facilities. Tests and certifies Cisco network hardware, software, and firmware; provides advanced troubleshooting and installation support; develops SD-Access solutions; validates network resilience and failover; advises operations teams; and collaborates on network automation, monitoring, and infrastructure improvements.

Design, deploy, automate, and support large-scale cloud network infrastructure across AWS, Azure, and GCP. Manage firewalls, Kubernetes networking, VPNs, DNS, BGP, monitoring, infrastructure as code, and network performance. Lead technical roadmaps, design reviews, troubleshooting, engineer onboarding, and team direction while participating in on-call support and occasional travel.

Design, build, and maintain automated network infrastructure across multi-cloud and hybrid-cloud environments. Develop automation using Itential, Terraform, Ansible, and Python; integrate cloud-native networking and security constructs; automate spine-leaf architectures and security controls; ensure high availability and visibility; mentor team members and collaborate cross-functionally to implement scalable network automation solutions.

The Senior Network Engineer will design, manage, and optimize large-scale data center networks for AI workloads, ensuring reliability and performance.

Serve as cleared senior network SME for DoD medical networks. Lead resolution of complex LAN/WLAN/WAN issues, design and enforce standards, configure firewalls/VPNs/IDS, use SolarWinds/ARMIS/Ansible for diagnostics, advise government stakeholders, lead teams, and support performance, capacity planning, and high-availability across DHA facilities.

Build software at Coinbase while responsibly using and integrating generative AI copilots (e.g., LibreChat, Gemini, Glean). Continuously learn evolving tools, apply human-in-the-loop practices, and deliver business-ready outputs that improve efficiency, cost, and quality. Participate in quarterly in-person working sessions as part of a remote-first culture.

Designs, deploys, secures, and operates enterprise and service-provider networks across on-premises, colocation, and cloud environments. Manages routing, switching, peering, addressing, firewalls, VPNs, monitoring, automation, capacity planning, and incident response. Maintains documentation and compliance evidence, serves as a technical escalation point, mentors junior engineers, and works directly with customers. The role is remote, includes occasional travel, and requires on-call and after-hours maintenance participation.

Lead enterprise cloud architecture, governance, and infrastructure enablement. Define reusable IaC patterns (Terraform), cloud networking (Transit Gateway, multi-account VPCs), and migration/data center exit strategies. Build architecture review processes, drive adoption of cloud-native practices (Kubernetes, CI/CD), and translate technical decisions for stakeholders while coordinating security and compliance.

Operate, maintain, and scale large data-center Ethernet fabrics; respond to incidents and participate in on-call rotation; execute maintenance, upgrades, and hardware replacements; troubleshoot latency, packet loss, and connectivity; and build automation/tooling (Python/Go, Ansible, Git) to streamline operations.

Manage and support enterprise network infrastructure including firewalls, VLANs, routing/switching, wireless, VPNs and monitoring. Deploy new office network hardware, perform cabling and ISP turn-up, and participate in change management. Provide operational support for Cisco ISE and Firepower environments, troubleshoot using packet-capture tools, maintain documentation, and collaborate with Security, Infrastructure, and End User Services teams.

Lead design, implementation, optimization, and support of enterprise and data center networks. Serve as top escalation for complex incidents, drive infrastructure reliability, develop scalable designs, champion architecture and automation, partner with sales and customers, and lead networking projects from inception through post-implementation support.

Design, secure, and optimize on‑prem and cloud networks; manage firewalls and switching; integrate multi‑cloud connectivity; own external links (Megaport); troubleshoot production incidents and participate in 24x7 on‑call rotation to ensure high availability.

The Sr. Network Engineer designs, implements, and operates cloud and hybrid network infrastructure, emphasizing automation and customer-centric solutions while supporting 24x7 operations.

Lead design, implementation, and automation of Akamai's global network. Build and maintain IP/BGP routing, data center CLOS fabrics, and overlay technologies (VxLAN/EVPN). Create/manage configuration templates with Python, Ansible, and Jinja2. Troubleshoot complex multi-vendor environments and collaborate cross-functionally on data models and requirements.

Lead Greenfield and Brownfield customer network deployments and production migrations. Design and troubleshoot advanced routing (BGP, OSPF, MPLS, VRF), implement firewalls (FortiGate, Cisco ASA), and build secure enterprise VPN and SD-WAN architectures. Participate in U.S.-aligned change windows and resolve complex escalations to minimize downtime.

Lead customer network deployments and brownfield migrations, design and troubleshoot advanced routing and VPN architectures, implement and manage Fortinet and Cisco firewall solutions, perform TAC-level debugging (packet captures, device debug), and own production change windows aligned to US hours.

Lead network architecture and delivery for MSP engagements across LAN/WAN, SD-WAN, wireless, and network security. Provide pre-sales design, hands-on implementation of Extreme and Fortinet platforms, develop standards and templates, perform network assessments, mentor junior engineers, and represent the practice in client-facing strategy discussions.

Design, deploy, and support enterprise and data center network solutions for healthcare clients. Lead architecture and infrastructure modernization, provide client consulting and pre-sales support, mentor engineers, collaborate with vendors and carriers, and participate in on-call rotations for critical escalations.

Design, build, secure, and maintain resilient enterprise and classified network infrastructure. Support routers, switches, firewalls, DNS/DHCP, perform packet analysis and monitoring, troubleshoot LAN/WAN issues, implement network security controls and segmentation, collaborate with cloud and cybersecurity teams, and produce operational documentation and reporting.

Manage and secure central hub network infrastructure and VPN connectivity, configure and maintain routers, switches, firewalls, and encryption devices, administer Cisco Call Manager, SolarWinds and Microsoft NPS, troubleshoot network issues, perform capacity planning, maintain documentation, ensure compliance with security standards, and provide on-call support for mission-critical operations.

Lead capability development and vulnerability research for an AI-driven exploit discovery and delivery system supporting a national security customer. Design exploit research and productization workflows, coordinate engineers and security researchers, establish technical practices, and integrate targeting data, tools, and infrastructure. The role requires extensive CNO development or security research experience, proficiency in multiple programming languages, cyber operations expertise, agentic AI workflow experience, and team leadership.

Design and deliver large-scale, high-performance network fabrics (Ethernet, RDMA, InfiniBand) for Azure workloads. Troubleshoot and root-cause hardware, OS, API, and management-tool issues; produce design and implementation documents; lead cross-team reviews; participate in on-call duties; and drive integrations with customers and third parties to ensure reliable, secure, and scalable network deployments.

Serve as the CONUS SME and lead technical authority for LAN/WLAN/WAN operations at military hospitals. Provide enterprise engineering, complex troubleshooting across OSI layers, design and modernization guidance, DoD/DHA compliance, firewall/VPN/IDS/IPS/Zero Trust support, performance optimization, stakeholder interfacing, policy development, and mentor network engineering staff.