Born and raised in Paris and now building from Silicon Valley, Guillaume Dumortier’s journey is one of curiosity, reinvention, and purpose. With over two decades in marketing, he has witnessed the discipline evolve from creative storytelling to data-driven systems—and now into an AI-powered future. Humans of Fuzia features Guillaume for his thoughtful approach to growth, his commitment to building sustainable systems, and his strong belief in empowering the next generation, especially women, through knowledge, opportunity, and equal footing.
What first inspired you to pursue a career in marketing?
My interest started very early—watching American TV ads from Europe. I was fascinated by creativity, messaging, and how brands communicated emotion and value. That curiosity pushed me to study marketing formally, and I’ve been in the field for about 20 years now.
How did your early career shape your perspective on growth and branding?
I began in large consumer brands like L’Oréal, Red Bull, and Reckitt. That experience gave me strong foundations in classic marketing—brand, emotion, and positioning. Later, moving to Silicon Valley shifted everything. Technology, social media, and data transformed how marketing worked, and I had to evolve with it.
Marketing has changed rapidly over the years. What were the biggest shifts you witnessed?
There were two major phases. First, around 2007 with the iPhone, social media, and Web 2.0—it opened completely new channels. The second phase was the rise of data-driven marketing, where analytics and measurement became central. And now, in the past three years, AI has completely accelerated and disrupted everything.
You’ve built a growth marketing framework. What makes your approach different?
I believe sustainable growth doesn’t come from copying playbooks. It comes from systems. My framework focuses on aligning the right audience with the right message, content with intent, channels with conversions, and tying everything together through data. It’s about structure, testing, and learning—not shortcuts.
What has been your proudest milestone so far?
Without a doubt, building my AI-powered marketing platform over the past few years. I’m not a coder, so doing this solo—from prompt engineering to rebuilding the product from scratch—was incredibly challenging. But it represents everything I’ve learned over 20 years, translated into something that can help others.
You work as a solo entrepreneur. How does that shape your work today?
I believe in the one-person company model, especially with AI. I rely on a trusted ecosystem rather than a large team. It allows me to stay focused, agile, and deeply involved in the work I care about most.
What are your thoughts on women in leadership and empowerment?
I have two daughters, so this is deeply personal. I’ve seen how many invisible challenges women face daily—structural, cultural, and systemic. I strongly believe there should be no difference in opportunity between men and women. Empowering women is about support, access, and paying it forward. When women come together, their collective strength is remarkable.
How do you personally define success?
Personally, success is my family—being present, supportive, and watching my children grow. Professionally, it’s about recognition from peers I respect and building something meaningful that lasts. I value the journey as much as the outcome—learning, experimenting, and constantly evolving.
“Success, for me, is staying curious, building with purpose, and sharing what I’ve learned so others can navigate their own journeys with confidence.”
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