Network & Security Architecture

Translating complex technology into business clarity

25+ years designing enterprise networks, SD-WAN & SASE deployments, and cloud security solutions. I help organisations cut through complexity and make confident technology decisions.

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Experience
25+
Years in ICT
Cisco
CCIE / CCDE
Emeritus #9061 & #20120002
Cloud Security
CCSP
Certified Cloud Security Professional
Education
MSc
Business in Technology

What I do

Where I can help

SD-WAN & SASE Architecture

End-to-end design and deployment of SD-WAN and SASE solutions — converging networking and security into a single cloud-delivered framework. Hands-on experience with Fortinet Secure SD-WAN, Cisco Viptela, and VMware VeloCloud, integrated with AWS and Azure.

Cloud Security Consulting

Pragmatic security strategy for hybrid and multi-cloud environments. Risk assessment, architecture review, and roadmap development aligned to business goals.

Enterprise Network Design

Scalable, resilient network architecture for enterprise customers. From requirements gathering through proof-of-concept to full operational handover.

Technology Strategy

Board and leadership-level advisory on technology direction, vendor selection, and infrastructure investment — grounded in 25 years of real-world delivery.

Transformation Projects

Lead and manage large-scale technology transformations — coordinating across sales, product, and operations teams to ensure outcomes are delivered on time and on spec.

Proof of Concept & Validation

Design, build, and run PoCs that de-risk investment decisions. Performance modelling, scalability testing, and business continuity validation before you commit.

Ger Kirby

About

Ger Kirby

25+Years designing enterprise ICT solutions across Ireland and beyond
BridgeEqually at home in the boardroom and the data centre — connecting business strategy to technical delivery
MScMSc Business in Technology, Ulster University — marrying strategy with delivery

I'm an experienced technical design architect and enterprise consultant based in Ireland. For over two decades I've worked with some of the most demanding organisations in Ireland and the UK, translating complex business needs into networks, security architectures, and cloud solutions that actually work.

My background spans both the deeply technical — CCIE, CCDE, CCSP — and the strategic, with a Master's in Business in Technology and TOGAF certification. That dual perspective means I can sit comfortably in a board room or a data centre, and help bridge the gap between the two.

Whether you need a trusted advisor for a major transformation programme, an independent review of your current architecture, or a clear-eyed technology roadmap, I bring structured thinking, hard-won experience, and a straight-talking approach.

CCIE Emeritus CCDE Emeritus CCSP TOGAF Fortinet SD-WAN Architect MSc Business in Technology

Insights

Thinking on network & security

Cloud & Cost Strategy

Does Flexing Cloud Bandwidth Really Save Costs — or Just Shift Them?

The promise of elastic cloud bandwidth sounds compelling. But are organisations actually saving money, or just moving costs around in ways that are harder to see?

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Cloud & Cost Strategy

Flexible Bandwidth Doesn't Reduce Cost — It Rewards Understanding

Flexibility is only valuable if you know how to use it. The organisations that benefit most aren't those with the biggest budgets — they're the ones who understand their traffic.

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Security & Resilience

Not All Internet Is Equal: Security, Exposure, and Resilience in the Cloud Connectivity Shift

Moving to cloud doesn't mean your connectivity risk disappears — it changes shape. A look at what gets overlooked when organisations make the shift.

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Enterprise Architecture

Who Owns the Cloud? Balancing Simplicity, Scale, and Accountability in a Multi-Partner World

When responsibility is shared across multiple vendors and teams, accountability can fall through the cracks. How do you design governance that actually holds?

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Quantum & Future Security

Quantum-Safe Security Is Easy on Hardware. Harder on the Cloud?

Hardware refresh cycles give you a natural migration window for quantum-safe cryptography. Cloud is a different problem entirely — and most organisations haven't started thinking about it.

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Post · War Story

"I Destroyed My Entire Network in 30 Seconds…"

Sometimes the best lessons come from the worst days. A candid post on what happens when things go wrong — and what it teaches you that no certification ever will.

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Post · OT Security

The Cloud Didn't Kill the Purdue Model… It Rebuilt It

The Purdue Model was never about the technology — it was about separating risk. Cloud forces a rethink of how that separation works in practice.

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Contact

Let's talk about your challenge

Whether you're planning a major network transformation, need an independent architecture review, or simply want a sounding board from someone with real-world enterprise experience — I'm happy to have an initial conversation.

ger.kirby@gmail.com linkedin.com/in/ger-kirbya9439b4 Nenagh, County Tipperary, Ireland