Network infrastructure
Network & Security Architect

Bill
Graham

Hyperscale SP Networking  ·  Cloud Security  ·  AI Infrastructure
Cisco  ·  Juniper Networks  ·  DriveNets

CCIE #7258 JNCIE-SP #119 SRv6 Expert DevNet Pro
About

Thirty years ago I started building small local area networks — connecting companies to a version of the internet that ran at 56K and had no roadmap for what it would become.

"The most valuable skill in technology isn't simply depth in any single domain — it's knowing when a wave has peaked and having the discipline to pivot before everyone else does — or it's too late."

Since then I've spent my career working on some of the most demanding network infrastructure problems in the industry — service provider networks, cloud network operators, and now the AI infrastructure layer that's reshaping how networks need to be built and secured.

That journey has taken me through Juniper Networks, DriveNets, and Cisco, working alongside customers across a wide range of scales and challenges.

What I've found along the way is that the hardest problems rarely live cleanly inside one technology domain. The most interesting work happens where networking meets security, where carrier-scale meets cloud-native, where the old SP playbook collides with a world being rebuilt around AI.

I'm always open to conversations about hard problems at that intersection.

Areas of Expertise
01 —
Hyperscale SP Networking
Carrier-scale routing, MPLS, SRv6, and SP core architecture.
02 —
Cloud Security & Zero Trust
SSE, SASE, and Zero Trust architecture. Deep product-level expertise with Cisco Secure Access.
03 —
AI Infrastructure Networking
The emerging network and security challenges at the AI infrastructure layer — GPU cluster networking, scale-out fabrics, and what SP-grade thinking brings to AI.
04 —
Network Disaggregation
Cloud-native, whitebox, and disaggregated networking architectures. Hands-on experience with DriveNets' platform covering Verizon and T-Mobile.
05 —
Cloud Platforms
AWS and Azure cloud networking and security. Bridging the gap between traditional SP and enterprise networking with cloud-native infrastructure.
Career
Cisco
Systems Architect
2022 — Present
Cover a diverse portfolio of enterprise accounts across financial services, insurance, sports and entertainment, and service providers — architecting solutions spanning networking, security, cloud connectivity, SSE/Zero Trust, and SRv6.
DriveNets
Senior Systems Engineer
2021 — 2022
Served as Senior Systems Engineer covering Verizon and T-Mobile, leading technical sales efforts for DriveNets' cloud-native disaggregated routing platform. Developed deep expertise in network disaggregation architecture, whitebox networking, and cloud-native SP network design at hyperscale.
Cisco
Systems Architect
2018 — 2021
Covered enterprise accounts across financial services, insurance, and sports and entertainment — architecting solutions spanning networking, security, cloud connectivity, and Segment Routing.
Juniper Networks
Sr. Consulting Systems Engineer & Senior Manager, Systems Engineering
2012 — 2018  ·  6 years
Six years on the Verizon account spanning Verizon Cloud, FiOS, and the Verizon Channel team. Served as subject matter expert in automation, software-defined networking, and cloud solutions at carrier scale.
Availity
Manager, Network and Security Services
2010 — 2012
Availity is a technology company operating the nation's largest real-time health information network. Responsible for the design, implementation, and management of network and security infrastructure supporting mission-critical healthcare data exchange.
Juniper Networks
Systems Engineer
2006 — 2010
Served as a Systems Engineer during a pivotal industry transition — helping tier 2/3 service providers migrate from TDM to Ethernet-based networking and pivot to IPTV and GPON residential broadband. Supported a diverse account base including Walt Disney Company and university research networks connected to the Internet2 backbone.
Writing & Projects
Substack
The Human Variable
Network infrastructure & security in the AI era — covering the technology shift and what it means for the professionals navigating it. Written for practitioners, not pundits.
Read on Substack
GitHub
Technical Projects
I am not a developer but I frequently help my customers with automation to solve their problems. Some of public repos include Cisco Secure Access tools, enabling the Juniper Networks vPTX router running Junos in Cisco Modeling Labs, and enabling high-scale route generation with ExaBGP in CML.
View on GitHub

Let's talk hard problems.

Open to conversations at the intersection of networking, security, and AI infrastructure.