Brendan Battersby
Network Architect
Resilient enterprise networks designed for security, scale, and business continuity
9 years in enterprise routing, security & cloud

About Me
I architect and deliver enterprise networks across retail, manufacturing, and finance environments. My recent work includes leading an eBGP/OSPF architecture redesign, designing redundant hybrid cloud connectivity to Azure with VeloCloud NVAs, and governing zero trust policy across 2,500+ endpoints with Zscaler. I prioritize designs that are resilient and clearly documented.
When I'm not at the whiteboard, you'll find me lifting, hiking, or playing DnD.
Network Architecture & Design
Each portfolio design combines patterns from my enterprise experience with representative constraints created to demonstrate my architecture process. These are original reference designs, not replicas of any single production environment.

Physical Datacenter Topology
Clos fabric with centralized firewall gateway and L2 extension via EVPN-VXLAN
Click for details
Azure Hybrid Cloud Connectivity
Dual-DC to Azure with SD-WAN primary, firewall VPN backup, and transit VNet architecture
Click for details
Zero Trust & Segmentation
Defense-in-depth with Zscaler for client access and Palo Alto for datacenter east-west traffic
Click for detailsWhat People Say
Feedback from colleagues and collaborators
Brendan and I first worked together at iTel, and we have stayed in touch ever since. He is thoughtful, technically curious, and someone whose perspective on networking and technology I continue to respect.
Abdul Salami
Principal Network Engineer, Oracle
You can always rely on Brendan to deliver a solution the right way - no kludges or hacks. He becomes an expert with any new or emerging technology in no time.
Bradley McCandless
Lead Solutions Architect, Telus
What sets Brendan apart is his calm demeanor and ability to inspire confidence. During any issue, he takes the lead, providing clear communication and ensuring a solution is found.
Mike McArthur
Senior Linux Administrator, Kal Tire
I've worked with Brendan for several years and have consistently been impressed by his intelligence, work ethic, and positive attitude. He's a quick learner who embraces new challenges and always strives to deliver exceptional results.
Anton Spagrud
Network Architect, Innovia Consulting Inc.
Any problems we came across, Brendan was able to troubleshoot effectively with a deep understanding of network and systems infrastructure. He was insightful, patient, and positive, and I learned a lot about networking from him.
Adam Beke
DevOps Engineer, Mawer Investment Management
I worked with Brendan for over a year, and it was impressive to see how quickly he learned and became an integral part of the team. He continuously strives to improve and is always looking to acquire new knowledge and skills.
Pam Ishy
Technical Project Manager, Government of British Columbia
Certifications
Industry-recognized credentials demonstrating
expertise in enterprise networking and security
Cisco CCNP Enterprise
Cisco Certified Network Professional Enterprise
Specialization: Advanced Routing & Services (ENARSI)
Azure AZ-700
Microsoft Certified Azure Network Engineer Associate
Cloud network design, VPN/ExpressRoute, Private Link, load balancing
Palo Alto NGFW Engineer
Palo Alto Networks Certified Next-Generation Firewall Engineer
Security policy design, threat prevention, firewall deployment
Skills
Design, leadership, and hands-on capabilities
developed across enterprise networking
Core Skills
Network Architecture
Turning business and technical requirements into resilient network designs, implementation plans, and clear decisions.
Requirements gathering · High and low-level design · Capacity planning · Risk & trade-off analysis · High-availability and disaster recovery planning
Routing & Resilience
Designing explicit routing policy, predictable convergence, and resilient failure domains for enterprise networks.
BGP · OSPF · EIGRP · BFD · FHRP · MLAG · LACP · STP · QoS · Cisco · Arista
Security & Segmentation
Translating business and security requirements into layered controls that reduce exposure and lateral movement.
Palo Alto NGFW · Zero trust · Micro-segmentation · IPsec/SSL VPN
Cloud & Hybrid Networking
Designing secure, redundant connectivity across datacenters and Azure with clear routing and failure behavior.
Azure VNets · Hybrid connectivity · NVAs · Private connectivity · Load balancing
SD-WAN & SASE
Selecting transport, path-selection, and access-policy approaches that balance resilience, performance, and operations.
VeloCloud · Versa · Zscaler ZIA/ZPA/ZDX
Technical Leadership & Governance
Guiding technical decisions, reviewing designs and changes for risk and operability, and helping engineers deliver consistent solutions.
Technical standards · Design reviews · Risk communication · Change planning · Mentoring
Additional Skills
Automation & IaC
Ansible, Python, Git, and infrastructure as code
Application Delivery
A10 and KEMP application delivery controllers
Wireless
Aruba, Cisco, Meraki, and Ruckus wireless platforms
Platforms
VMware ESXi, Hyper-V, Docker, Windows, and Linux
Observability
SolarWinds, Tenable, SNMP, NetFlow, syslog, and log analysis
Troubleshooting
Packet capture, protocol analysis, and systematic fault isolation
Side Projects
Side projects exploring technical documentation and web development
Networking Knowledge Base
A structured knowledge base covering routing protocols, cloud platforms, security concepts, and automation tools - maintained as part of my continuous learning practice
Weightsmith
A free progressive web app for barbell plate calculation, 1RM estimation, dynamic warmup generation, and percentage-based training computation
Let's Connect
Hiring for a Network Architect or Senior Network Engineer? I'd be glad to discuss your team, technical challenges, and how I can contribute.