Global Healthcare Cybersecurity & AI Infrastructure Leader

Devesh S.

I build AI systems that are secure by architecture, not by patch — and I'm applying that principle to the biggest unsolved problem in healthcare AI: what happens when it touches patient data and gets it wrong.

PhD, AI & Cybersecurity · Cisco, Worldwide Cloud & AI Infrastructure Sales · 18 Years Across Telecom, Financial Services, Retail & Healthcare

Portrait of Devesh S.
$500M AI infrastructure sales scope led at Cisco
$40M Opened by the Cyber Security Intelligence Solution
18 Years across telecom, BFSI, retail & healthcare
40 Person data science hub built & led in Bangalore
01 — Narrative

The Question I Can't Stop Asking

"We know exactly what our EHR does when it fails. We have no idea what our AI does when it fails — because it hasn't failed loudly enough yet." A hospital CIO, in conversation

That sentence is the reason this site exists.

I didn't start in healthcare. I started in telecom, staring at a harder version of the same problem — four of the largest carriers in the US, all fighting networks that retrained themselves on new traffic and attack patterns faster than any human team could monitor. I architected the Cyber Security Intelligence Solution that gave AT&T, Verizon, Comcast, and T-Mobile a way to catch threats inside that moving target. It opened roughly $40M in new business. The number I actually care about is different: it proved that security bolted onto AI after deployment always loses to security built into the architecture from day one.

I call that principle Secure by Architecture, Not by Patch — it's the lens I now put on every AI system I touch, and the thesis of my PhD.

Secure by Architecture, Not by Patch

I finished a PhD in AI & Cybersecurity in 2025 because I kept running into a version of that CIO's sentence in every regulated industry I've worked in. Healthcare is where it's loudest. Health systems are deploying generative AI into clinical workflows faster than governance frameworks can keep up — HIPAA wasn't written for an autonomous agent making a clinical judgment call on PHI in three seconds. That gap is where I now spend most of my reading, writing, and advisory conversations.

Today I lead Cisco's Worldwide Cloud & AI Infrastructure Sales organization, working with CXOs and architecture teams to design AI infrastructure — Cisco UCS X-Series, NVIDIA integrations, Cisco's Secure AI Factory framework — that's governable from the first line of code, not retrofitted after an incident report.

02 — Framework

Secure by Architecture, Not by Patch

The thesis behind a $40M telecom deployment, a PhD dissertation, and every healthcare AI conversation I'm in now.

The Old Model

Security is bolted on after deployment.

An AI system is built, tested, and shipped. Security is added afterward. Vulnerabilities are found by attackers first, patched by vendors second.

The Failure Point

In healthcare, this model breaks fastest.

AI agents touching PHI move faster than a patch cycle. A single ungoverned model decision can have direct clinical consequences — not just a data breach.

The Architecture-First Model

Governance is a design requirement, not a checklist.

Auditability and threat detection are built in from the first architecture review. This is the model behind the $40M telecom deployment — and the one I now bring to every healthcare AI conversation.

03 — Experience

Eighteen years, one thesis, four industries.

2025 —
Present
AI Expert & Leader, Worldwide Cloud & AI Infrastructure Sales
Cisco

Drive Cisco's worldwide AI infrastructure sales motion across a $500M scope, advising CXOs on secure AI architecture for regulated industries, including healthcare. Anchor deployments in Cisco's Secure AI Factory framework on UCS X-Series and NVIDIA integrations.

2022 —
2025
Business Solutions Leader, Americas Region
Cisco

Grew AI-driven business by $20M+ annually across AT&T, Verizon, and Dish. Delivered the Cisco Live keynote, "Harnessing AI for Next-Gen Network & Services Observability." Won the Technical Leader Award and "Dedication to Innovation" recognition.

2019 —
2022
Lead Data Scientist & Architect, Telecom, Healthcare & BFSI
Cisco

Architected the Cyber Security Intelligence Solution — the origin of "Secure by Architecture, Not by Patch" — opening $40M in opportunity across AT&T, Verizon, Comcast, and T-Mobile. Incubated Healthcare, BFSI, and Utility AI use cases from zero. Filed multiple patents on customer network transformation.

2016 —
2019
AI Consultant, Smart City Singapore
Cisco

Designed the AI-based smart estate platform behind Singapore's Jurong Innovation District. Work later published internationally as a whitepaper on Digital Twin and Smart City design. Won the Worldwide TSIA Star Service Excellence Award (2018).

2014 —
2016
Data Science Manager & Regional Lead Data Scientist
Hewlett Packard Enterprise

Built the ML-based HP Shopping Business Platform, driving a $156.9M annualized revenue increase. Set up and ran a 40-person data science delivery hub in Bangalore.

2012 —
2013
Manager, Analytics
McKinsey & Company

Built the data infrastructure behind four McKinsey analytical products, including Clinical Trial Investigation.

2006 —
2012
Manager, Risk Analytics
American Express

Built a default-prediction model that improved compliance and cut risk exposure across the portfolio; designed the customer churn model still shaping retention strategy.

04 — Research & Publications

Doctoral research, whitepapers, patents.

This section is placeholder-safe by design — precise citations replace the bracketed notes below before the site goes live. See "Connect" for how to reach me about any of this work directly.

Doctoral Research

[Insert exact PhD dissertation title]

PhD, AI & Cybersecurity — [Insert institution], 2025. Focused on architecture-first AI security. Deserves a dedicated abstract and, ideally, its own page — this is the single most important credibility asset on the site.

Add before publishing
Whitepapers

Digital Twin and Smart City Design

International publication based on the AI-based smart estate platform designed for Singapore's Jurong Innovation District. [Insert publisher/journal name and link.]

Add publisher & link

Harnessing AI for Next-Gen Network & Services Observability

Cisco Live keynote. [Insert link to recording or slides — currently the highest-value dormant asset on this site.]

Add recording link
Patents

AI-driven customer network transformation

Multiple patents filed during tenure as Lead Data Scientist & Architect, Cisco (2019–2022). [Insert patent numbers/titles from USPTO or Cisco's internal filing records.]

Add patent numbers
In Progress

What Hospital CIOs Get Wrong About Generative AI

A planned original essay, published on this site rather than only on LinkedIn — the anchor artifact that's fully original and directly supports the healthcare positioning while the citations above are finalized.

Not yet written
05 — Recognition

Recognition & Awards

06 — Education

Education

PhD, AI & Cybersecurity

[Insert institution name], 2025

[Insert prior degree — institution, field, year]

Undergraduate or master's degree not yet included in source material.

Add before publishing
07 — Skills & Domains

Where I work.

AI Security & Governance

AI Security & Governance · Healthcare AI Governance & Compliance · HIPAA-Aligned AI Architecture · Cybersecurity Intelligence Solutions · Secure AI Infrastructure Architecture

AI & Data Science

Generative AI (GenAI) · Large Language Models (LLM) · Retrieval-Augmented Generation (RAG) · Machine Learning · Deep Learning · Vector Databases · Mathematical Modeling · Data Modeling for AI

Infrastructure & Engineering

AI Infrastructure (NVIDIA, Cisco UCS X-Series) · Cloud AI Workloads (AWS, Azure) · ML Ops · Data Engineering · AI Solution Architecture

Leadership & Strategy

Executive & CXO Advisory · Enterprise AI Adoption Strategy · GTM & Pre-Sales Strategy · Technical Team Building & Mentoring · Data Science Leadership · Patents & AI Innovation · Smart City / IoT AI Applications · Account Management

08 — Connect

Let's Compare Notes

If you're a health system CISO, CIO, or board member working on secure, governed AI in clinical settings, I'd like to hear how you're thinking about it.

Opens your email client with this message pre-filled — set the destination address in the code before publishing.