Building markets for
hi! i'm sam, a 15 year old builder from the UK. right now i'm working on the full self custody robinhood with american style options and perps for pretty much every asset in the world.
BrokerFi
BrokerFi is what I'm building: a self-custody trading platform focused on American-style options and perpetuals across all major asset classes. That's stocks, commodities, forex and crypto. We prioritise clear UX, predictable pricing and fast order execution.
BrokerFi is raising pre-seed. If you're an angel who likes DeFi or young founders, let's talk.
- American-style options + perps for any asset.
- Full self custody on-chain settlement with beautiful UX.
- Low latency order execution that doesn't require manual wallet signing. (but still secure + fully self custody!)
about
i'm samuel cletheroe. i'm 15 and i'm building the best self custody platform for traders. i care about ruthless ux, reliable systems, and making complicated finance feel simple.
right now i'm focused on BrokerFi: options and perps with full self custody. i also ship ml experiments, freelance web work, and small social experiments. i move fast, prototype relentlessly, and polish the details that actually matter.
if you're building something ambitious, product, infra, or research, i like talking about it. i build, iterate, and ship until something useful exists.
Selected Work
BrokerFi
American style options and perps for every asset (stocks, commodities, forex, crypto). With a focus on clean UX and full self custody. (this is what i'm really focusing on)
Machine Learning, XGBoost & Data Science
Various machine learning projects using XGBoost, Random Forests and Transformers to predict future crypto movement and other datasets. (i pretty much do this when i get bored as fuck and wanna do something else)
My Web Design Brand
My web design brand Better Call Sam focused on cool websites like this one at affordable prices for local businesses.
Y Social
I built a social platform to research (also because it's the next letter in the alphabet after X) and learn about user engagement and running efficient backend code in production. My first non-crypto production project. sadly I don't run it anymore as it didn't gain enough traction for it to be worthwhile
feel free
to reach
out!
here's how to find me if you wanna chat about what i'm building or anything crypto, web3, defi, options, perps, ai (or just say hi).