Network Infrastructure Engineer

Network Infrastructure Engineer Fort Collins, CO (Hybrid) Contract or Full-Time Virtual Interview. We are seeking a highly skilled Network Infrastructure Engineer to design, modernize, and automate enterprise lab network environments supporting next-generation infrastructure platforms. This role focuses on transitioning traditional edge/core/aggregation network models to a modern spine-leaf architecture while implementing monitoring frameworks, IPAM modernization, and Linux-based automation tooling across multiple lab environments. You will work closely with architecture, security, and operations teams to deliver scalable, high-performance, and automated network platforms. Key Responsibilities Network Architecture & Implementation Design and migrate traditional networks to spine-leaf architectures using Aruba-based infrastructure Support overlay gateway termination on both virtualized firewalls and physical ToR devices Build standardized network models for use across multiple lab environments Perform LAN/WAN topology design, validation, and performance optimization Routing, Switching & Segmentation Configure and troubleshoot enterprise routing and switching (Aruba, Cisco, HPE) Implement VLAN design, segmentation strategies, and traffic optimization Conduct site readiness assessments and network capacity planning Monitoring & Observability Design and implement a comprehensive monitoring framework using OpsRamp Integrate dashboards, alerting, and log analysis (OpsRamp, ELK or equivalent) Ensure proactive detection of performance and availability issues IPAM & Network Data Modernization Partner with external vendors to implement new IP Address Management (IPAM) systems Audit and reconcile VLANs, IP ranges, VTEPs, and historical ownership data Cross-reference network data with ticketing and operational systems Linux Automation & Tooling Deploy and manage Linux-based infrastructure platforms across labs Develop custom scripts and automation to streamline network operations Required Skills & Experience Strong hands-on experience with routing and switching (Aruba, Cisco, HPE) Deep understanding of spine-leaf network architectures VLAN segmentation, LAN/WAN design, and enterprise troubleshooting expertise Experience with network monitoring platforms (OpsRamp preferred; ELK a plus) IPAM system implementation or migration experience Linux system administration and automation experience (Python, Bash preferred) Nice to Have Experience with overlay networks and virtual firewalls Data center lab or R&D infrastructure environment experience Infrastructure automation frameworks (Ansible, scripts, APIs) Flexible work from home options available. Compensation: $50.00 - $60.00 per hour SelectMinds