Samuel Corsan

16y/o full stack developer and builder.

Hi, I'm Samuel, a 🇪🇸 16-year-old full stack developer from Spain. I've been building things since I was 9, starting with Roblox games and finding my way into web development, AI, and products that make people's lives a little easier.

I'm currently a product engineer at QuiverAI, working on AI-native tools for generating, editing, and animating vector graphics. I've helped build the Agent UI, Icons UI, and Fonts UI, and worked incredibly hard to refine the product and get every detail right.

I'm also a co-founder of HackSpain, a 36-hour hackathon for 250 young builders in Madrid, backed by Google, Cursor, fal.ai, Cognition, Exa, HappyRobot, Embat, Prosper AI, Maisa, THEKER Robotics, and RevenueCat, among others.

Alongside that, I've built and launched stealth apps through my own app studio, generating five figures in revenue.

What keeps me going is pretty simple: watching someone use something I've made and hearing that it helped. I want to build a company that makes a lasting, positive impact, give back to my family, and head to the US for college. In the meantime, I'm learning by building.

Away from the keyboard, I've been practising karate for 8 years and hold a blue-brown belt. I also play football and enjoy talking through world issues and geopolitics with friends. There's always another perspective to learn from.

Projects

I co-founded HackSpain, a 36-hour hackathon for 250 young builders at UPM–ETSIT in Madrid, from September 18–20, 2026.
I’m building both the site and the movement: bringing young Spanish coders together and putting us on the European map.
Backed by Google, Cursor, fal.ai, Cognition, Exa, HappyRobot, Embat, Prosper AI, Maisa, THEKER Robotics, and RevenueCat, among others.
HackSpain · Madrid 2026
Visit HackSpain
Reimagining fashion e-commerce. Swipe through clothes like social media, try them on instantly with AI, and check out in one tap. Shopping should feel personal and effortless, not like work.
React Native · TypeScript · Upstash · Supabase · vLLM
Ladda · Product demo 1
Ladda · Product demo 2
Ladda · App preview
Ladda · App preview
Ladda · App preview
my first real project. built a roblox game that somehow blew up, even though i couldn't spell "chaotic" correctly. it peaked at 20k players and 223k combined views. not bad for a 9 year old
Lua · Roblox Studio
the trailer · 11k views
the cars
the bank
the train
the spark
i was obsessed with Jailbreak. at its peak it hit 530k players online at the same time. but for me it got repetitive fast, you robbed the same spots and did the same things over and over. i kept thinking: what if i built my own version, but better?
step 1: building the team
i found a few people on a discord server who liked the idea, pitched them, and put together a small team: coders, a designer, a modeler. i was 9, paying each of them in roblox currency, a tiny entrepreneurship project before i even knew the word.
step 2: a beta in silence
we built quietly for a few months. no announcements, no hype, just a beta we kept polishing until the game actually felt fun. i added way more robberies than jailbreak had, and a brand-new role: the citizen. instead of only cops and robbers, you could roam the city, feed criminals clues, or team up with the police. it made the world feel alive instead of a loop.
step 3: getting the youtubers
then i started reaching out to jailbreak content creators to show off the game. it worked, across all their videos, caotic robbers pulled in 223k combined views, and our own trailer hit 11k views. for a game made by a 10-year-old and his discord friends, that felt unreal.
step 4: someone deleted everything
one year of work. one month to rebuild it.
a month before release, one of the developers decided he wanted to be the leader. i said no. he wouldn't accept it, and because everyone had full access in roblox studio, he deleted the entire map. a year of work gone in seconds, and we had no backups.
so we rebuilt the whole thing in one month, scrambling, cutting corners, prioritizing what mattered and skipping the rest.
step 5: the launch (a disaster)
here's the cruel part: the youtubers had filmed the old game, the polished version from before the deletion. so players showed up expecting that, and got our rushed one-month rebuild instead. it didn't match, and it showed.
we still hit a peak of 20k players. but the game wasn't ready, and a few days after launch we had to take it down.
what it taught me
two technical lessons i never forgot: give people access to only what they actually need, and always keep backups. but the bigger one was about ownership, i told the team “this was my mistake,” because it was my fault for giving everyone permissions. owning that, instead of blaming him, was the most valuable thing i took from the whole project.
Watch the trailer