Daniel Sebastian Gualotuna
Full-Stack Growth & 0→1 Product Lead
Currently not taking on new client projects. As of Jul 13, 2026.
Most founders hire a marketer, a product person, and someone technical. _I happen to be all three._
I’ve led product strategy and execution across a venture studio portfolio, taking multiple apps from concept to launch while owning technical architecture, leading engineering teams, and contributing to core implementation. I’ve also built GTM systems for DTC and high-ticket brands and managed six-figure monthly ad budgets.
If you have an interesting project or problem, reach out. I'd love to take a look. You can learn more about me and my work below.
My Work
Advertising Portfolio→ Selected copy and strategy artifacts, shown in the format they were built for. Personal Projects→ Off-the-clock builds — vibecoding, automation, music.My Writing
All writing →Proof
All 9 testimonials →Daniel started as our copywriter and evolved into our CMO, becoming a key leader in our business. His broad skill set — from technical implementation to content strategy to team management — helped us scale to seven figures in 2023. His combination of strategic thinking and diverse technical skills is rare and valuable.
Paulius Grigas College Admissions Secrets Daniel is a marketing and operations ninja. From the start of the project, he took full ownership of helping me set up a killer sales funnel to really skyrocket my business… I highly recommend working with him if you're looking for somebody who works hard, fast, and gets results. Only wish I had met him sooner!
Felipe Corredor Founder, Corredor Counselors