Your product
should be as good
as your vision.
Product strategist and designer who works alongside founders, not just advising, but building with you. Two decades across startups, enterprise, and everything in between.
Select clients & companies.
Apple standards,
bootstrap mentality.
Whether you've raised $10M or you're bootstrapping on nights and weekends, the mentality can be the same: build something excellent, while finding the most efficient path to product-market fit. AI has made this more achievable than ever. The bar for quality is higher, the cost to reach it is lower, and the founders who understand both will win.
What I can help with.
Product strategy.
What to build first, how to find product-market fit, and when to pivot. I've taken multiple products from zero to launch and helped teams align around a clear roadmap when things felt scattered.
Design, brand & UX.
Most product advisors can't pick up a design tool. I can. From brand identity to conversion funnels to interaction design, I bring a level of detail that's hard to find in a strategy role.
Growth & marketing.
I think about the full picture: acquisition, activation, retention. At Yieldstreet, I helped convert a 400K+ member base through multiple funnel redesigns.
Process & leadership.
Building the right workflows so your team ships faster with less chaos. Helping founders and product leaders level up how they think, communicate, and make decisions.
"Sebastian doesn't just give you a strategy and walk away. He rolls up his sleeves, gets into the product, and helps you figure out what to build and how to build it. He's the reason we went from having no clear direction to shipping a product we were genuinely proud of."
Let's build something great.
Whether you need product strategy, design direction, or a hands-on partner who can do the work with you.
Latest writing.
The internet ruined some of the best startup advice.
Most startup advice is great. The problem is how literally people take it, and how the internet has twisted it into something the original person never meant.
My playbook for managing up and owning the product roadmap.
Managing up isn't about saying no. It's about building a dynamic where the debates barely happen. Here's what I've actually done, not what the internet tells you to do.
The real reason founders can't focus.
Founders don't avoid hard things. They avoid friction. And the work they're avoiding is usually the work that matters most.