Hi, I'm Samuel. Currently based in New York City and building KEEPON, an AI platform for digital health & fitness. I'm a former MIT & Harvard AI PhD candidate, turned startup founder. Previously, I founded Marveri, a Cambridge-based legal tech company partnering with some of the most prominent law firms in the world.
I'm originally from Germany but have spent almost all of my life in other countries—the US is now my ninth. When I was five years old, my family moved to Croatia through a German NGO. Even though I didn't speak a single word of Croatian, I attended a Croatian public elementary school. Later, during high school, I discovered a deep passion for physics and math, eventually working my way up to winning three medals at the International Physics Olympiad. For many years, I studied day and night, dreaming of attending MIT. However, this dream wasn't meant to come true—at least not yet. Around that time, I also briefly attended school in South Africa as an exchange student.
Before starting my undergraduate studies in physics at the University of Zagreb, I worked as a volunteer teacher at an orphanage near Nairobi, Kenya. During my undergraduate studies, I first worked in Ice & Climate research at the Niels Bohr Institute in Copenhagen—this sparked my curiosity about computational modeling. Wanting to apply these skills beyond academia, I joined the hedge fund D. E. Shaw & Co in London, my first real job, creating computer simulations of bond and foreign exchange markets. Shortly after, I decided to drop out of my undergraduate studies at the University of Zagreb, leaving Croatia and pursuing other projects, eventually landing in the sunny and picturesque city of La Jolla, California. Arriving in America for the first time felt surreal—I'd grown up watching California in movies, and now the places I'd only dreamed about suddenly felt real. Living in the US, I quickly fell in love with the openness, ambition, and entrepreneurial spirit that define this country. In La Jolla, I conducted Machine Learning research at UC San Diego, published several academic papers, and invented a novel ML algorithm, all of which opened many doors for me later. Although I spent countless hours working, I still occasionally found time to go surfing in the Pacific Ocean.
Shortly after, I started my master's degree in Physics and Data Science at EPFL in Switzerland. While there, I worked as a research assistant in the group of Prof. Giovanni De Micheli on Quantum Computing and at the National University of Singapore on Quantum Optimization Algorithms, with applications in game theory.
In 2020, a childhood dream came true—I joined Harvard University to write my master thesis on "Near-Term Quantum Algorithms for Optimization Problems." However, just three weeks after I arrived, Harvard shut down due to the COVID pandemic. The abrupt lockdown was incredibly stressful, but it also unexpectedly opened my eyes to entrepreneurship, something I'd never seriously considered before. Around the same time, I also discovered bodybuilding—a personal passion that quickly became an essential part of my life. Shortly after, I started my PhD at MIT under Prof. Seth Lloyd, a huge personal milestone. At MIT, my research combined AI and Quantum Computing, and completed my minor in business administration at Harvard Business School. After earning my master's degree from MIT (a key milestone in my PhD journey), I made the difficult yet exciting decision to leave academia and fully commit to entrepreneurship. I co-founded Marveri, raising $3M from top-tier investors, including Bessemer Venture Partners. There, I partnered with some of the most prominent law firms in the world. At the end of 2024, I exited Marveri, spent some time traveling. In 2025 I moved to New York City and founded my third startup, KEEPON, where we bring personalized 1:1 coaching to people at scale.