# Sean Ellis > Author of best-selling "Hacking Growth" with 750K+ copies sold worldwide. Helping founders architect an effective growth system after PMF — and build the processes that scale it. Sean Ellis — Growth System Architect & Author of “Hacking Growth” I’m best known for coining the term “growth hacking” and writing the best-seller “Hacking Growth” (750,000+ copies sold worldwide). But my true specialty — and where I create the most value for founders — is serving as a Growth System Architect. I work with companies that have validated product/market fit to build their first scalable growth system. I’ve architected growth engines at Dropbox, LogMeIn, and several other unicorns — experiences that shaped my conviction that this role is one of the rarest, yet most important, in tech. My key areas to add value are: 1. Architecting the first scalable growth engine (post-PMF): designing the compounding system that takes you from early traction to breakout growth. 2. Leveraging product/market fit for sustainable growth: helping teams understand and harness their PMF — and translate it into a go-to-market foundation for long-term success. 3. Implementing a data and experiment-driven growth process: guiding teams to adopt the culture, tools, and methods needed for continuous, cross-functional experimentation. My writings have influenced companies worldwide, including the go-to-market teams at TikTok and Nubank, one of the world’s fastest growing banks. If you’re a founder or growth leader with validated PMF, I can help you architect, or re-architect, the growth system that will power your next stage of success. Often, the most important breakthroughs happen in just one or two 45-minute sessions. **Rating:** 5/5 (18 reviews) ## Offerings - Video call (15 min): $550.00 ## Subscription Plans - Early scale - after PMF validation (VIP Access) ($7500.00/month) ## Example Questions - We’ve validated PMF — how do we translate it into a scalable growth system? - What are the biggest mistakes teams make when architecting their first growth engine? - We’re scaling, but growth has plateaued. How do we know if our system needs to be re-architected? - How do we identify which growth loops or levers to go deep on? - How can I rally my leadership team around a data and experiment-driven growth process? ## Links - [Expert profile](/SeanEllis) - [Avatar](https://media.intro.co/avatars/964794Unp9Nt5T.jpg) - [Marketplace](/marketplace)