Hi, I'm Maria.
I design, build and grow apps for humans and AIs.
I'm a scientist turned founder and builder, with a PhD on how people learn and make decisions. After academia, I co-founded Skin Bliss and built it remotely while living in eight different countries. Now I've settled in Barcelona, where I build my own apps and tools for AI agents. I also help other people build theirs. Work with me!
What I made
Skin Bliss3M+ downloads
Know whether a skincare product suits your skin before you buy it.
Pattern RushLive
A quick puzzle you can play against friends in real time, a few minutes at a time.
N-dayLive
For routines that repeat every few days, not on fixed weekdays.
fideliusLive
Let your AI coding agents use your API keys without reading them.
SpellbookComing to Mac
Type a short trigger anywhere on your Mac and get the full text, or the result of a command.
Claude Code DashboardPublic on GitHub
See what your Claude Code setup costs in context, and manage it in one place.
Vino TintoWaitlist
Speak Spanish with a patient tutor before you speak it with people.
Biome BlissPrototype
Find out which foods your gut tolerates, one experiment at a time.Work with me
Freelance, or a few days a week. Tell me what you are building and where it keeps getting stuck.
- Coding agents and internal tools for your team, set up so they use your keys without ever reading them
- Private AI on your own hardware, so company knowledge never leaves the building
- An AI feature inside your app, from first prototype to the App Store
- A mobile app from idea to the App Store and Google Play
- A paywall, pricing and onboarding review for apps that get downloads but not revenue
- Part-time product lead, one to three days a week