AI-Native Fractional CMO & Marketing Systems Architect

I help biotech, life sciences and technical B2B organisations build intelligent, integrated marketing systems that drive predictable commercial growth.

I’ve spent two decades building marketing engines across:

• biotech

• life sciences

• insurance

• technology

• SaaS

• professional services

My work blends:

• senior strategic leadership

• hands-on delivery

• AI-enabled capability

• system design

• commercial clarity

• scientific messaging

I’ve worked with founders, scientific teams, and leadership groups under pressure to scale.

• £50m+ growth delivered in my career for the brands that I've worked with

• Top 3% CMO nationwide

• Marketing Director of the Year Finalist 2025

• Fellow of the Chartered Institute of Marketing

• Certified in AI Fundamentals, Piloting, Scaling & Marketing

• Speaker on AI adoption, marketing transformation and Human + AI workflows

Stephen Rumbelow

Founder, Vibe MKTG · AI-Native Fractional CMO · Fractional Chief AI Officer

My Philosophy: Human + AI + Human

• Humans set direction.

• AI accelerates execution.

• Humans validate, decide and deliver.

Jobs don’t disappear — tasks evolve, capability expands, output improves.

This is how modern organisations scale marketing safely, efficiently and intelligently.

FAQs

Stephen Rumbelow is the founder of Vibe MKTG and an AI-native Fractional CMO who helps biotech, life sciences and technical B2B organisations build intelligent marketing systems. With 20 years’ experience, award recognition and deep AI expertise, he combines strategic leadership with hands-on execution to deliver meaningful commercial outcomes.

1. What’s your background?
Two decades leading marketing in biotech, life sciences, insurance, tech and B2B, specialising in complex, science-led environments.

2. What makes you “AI-native”?
I integrate AI into research, workflows, content, analysis and decision-making—using Human + AI + Human oversight to protect accuracy.

3. Do you work with non-biotech companies?
Yes—any organisation with complex products, technical audiences or scientific positioning challenges.

4. Do you work onsite or remotely?
Both. I frequently work with teams in Cambridge, London and Oxford.

5. What’s your philosophy?
Human intelligence sets direction; AI accelerates execution; human oversight ensures accuracy, credibility and commercial impact.