Dave Grimm
Enterprise Network Engineer | Network Architecture | Hybrid Infrastructure | SD-WAN | SCADA / ICS | Cisco Infrastructure
- Role
- Network Engineer Iii at Range Resources
- Location
- Pittsburgh, PA, US
- LinkedIn followers
- 500 followers
About Dave Grimm
As a Network Engineer at Range Resources, I have over two decades of experience in designing and implementing secure and reliable enterprise and industrial network infrastructures. My core competencies include Cisco networking, SD-WAN, SCADA/ICS systems, and network security. I have contributed to transformative projects such as MPLS-to-SD-WAN migration, data center modernization, and high-availability network design. I am dedicated to expanding my knowledge in network automation using tools like Python and Ansible, as well as enhancing my skills in Microsoft Azure networking to support hybrid and cloud environments. My goal is to continue collaborating with teams to drive innovation, reliability, and scalability in enterprise networks.
Experience
Network Engineer Iii
Feb 2019 — Present · Pittsburgh, PA, US
Responsible for architecture, modernization, and operational reliability of enterprise network infrastructure supporting corporate offices, data centers, and industrial field operations.Key Infrastructure Projects• Data Center Modernization: Migrated legacy Cisco Nexus infrastructure to a Nexus spine-leaf architecture, improving scalability and resiliency while achieving near-zero downtime during cutover.• Enterprise SD-WAN Transformation: Led migration from MPLS to Cisco SD-WAN, directing the proof- of-concept through production deployment and integrating Cisco Firepower (FMC/FTD) for centralized security enforcement.• Co-Location Data Center Deployments: Engineered deployment of multiple co-location data centers delivering resilient hybrid environments consisting of both physical and virtual networking infrastructure.• Remote SCADA Connectivity Expansion: Extended SCADA communications to remote field sites using Starlink WAN links and route-based VPNs to provide secure telemetry in locations without traditional communications infrastructure.Additional Contributions• Designed and implemented the organization’s first Microsoft Azure networking environment, enabling hybrid connectivity and cloud infrastructure adoption.• Modernized remote access infrastructure by migrating VPN authentication to Azure SAML SSO.• Migrated enterprise wireless infrastructure from Cisco AireOS controllers to Catalyst 9800 platforms.• Supported deployment of networking infrastructure for internal AI / HPC environments within the enterprise data center.
Education
PennWest California
Bachelor of Science, Computer Information Systems: Information Technology
1999 — 2005
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