PatricioXavier Martinez
(01)
Founder and self-taught engineer. I build software for finance education, restaurants and the people around me.
Founder, YuppieBanker Technologies. San Pedro Garza García, Monterrey, Mexico.
(02)
Ventures
Held by YuppieBanker Technologies and listed in order of focus. Each one has its own page: what it is, the problem it solves, what it does and how it got here.
- 01YuppieBankerFinance educationBuilding2025
- 02IkkyuRestaurant technologyFinal stage2026
- 03Restaurant Operating SystemRestaurant technologyBuilding2026
- 04BeYouSocial and communityDevice testing2026
- 05Dr. Carlos ZertucheAI servicesActive build2026
- 06NFL Mastery ModelSports analyticsIn use2026
- 07Mr. Duck's Beer WorldPersonal projectStarting2026
(03)
Finance first, then code.
I'm 24, from San Pedro Garza García, Monterrey. I'm passionate about finance and technology, but what really drives me is people: connecting with them and hearing their stories.
I've loved finance since I was little. YuppieBanker, my first venture, is how I express that love, and it's the reason I taught myself to code, with Claude and Claude Code as my engineering partners. Every project since grew from that first build, so the company that holds them carries its name: YuppieBanker Technologies.
How I build.
- I start with a real person and a real problem, usually someone I know.
- I sit down with them and ask what they need to see to make better decisions.
- I build it from scratch around them, with Claude as my engineering partner.
- I put it in their hands early and test it on real devices with real data.
- I compare it against the best products in the market and keep improving it.
What I love outside the code.
- PeopleWhat really drives me: connecting with people and hearing their stories.
- SportsThe NFL above all, then soccer and basketball.
- Fantasy footballFantasy football in high school is how I fell for the numbers. It led to my own NFL model.The NFL model
- Beer from around the worldIt became a small project of its own: every beer I taste, scored and pinned on a world map.Mr. Duck's Beer World
- CoffeeCoffee and espresso, one of the small things I love.
- Books and podcastsI love to read, to dig into articles and to listen to podcasts.
- FitnessChallenging myself to get better every day, physically, mentally and emotionally.
(04)
Build log
Each bar is one week of real work across every repository, from November 2025 to November 2026. I design the product, write the spec, and build it with Claude Code.
2,316commits in the last 12 months
- Peak week
- 262
- Active weeks
- 28/52
- Repositories
- 12
Where the work went
- YuppieBanker1,355
- BeYou396
- NFL Mastery Model195
- Ikkyu164
- Gonzalo Chapa95
- Sushi Iwa74
- Restaurant Operating System27
- This site5
- Dr. Carlos Zertuche3
- Ban Otto1
- Cristo Noir1
(05)
From the first line to today.
The day each codebase started. Drag or scroll sideways.
(06)
Built for clients
A restaurant, two photographers and a creative studio. Each one designed around the person, in their own colors.
Sushi IWA
Japanese restaurant and sake bar, 2026
A bilingual site for a Japanese restaurant in San Pedro: the menu, reservations with deposits, a reservation chat built on Claude, and a back office for the staff.
sushiiwa.mx ↗Gonzalo Chapa
Photographer, 2026
Portfolio, blog and quote requests for a street, event and portrait photographer, with his own admin to publish everything himself.
gchapa.com ↗Cristo Noir
Photographer and creative director, 2026
A dark, editorial home for his photography, artwork prints, jewelry and clothing.
Private for nowBan Otto
Media and brand image, 2026
A personal brand site for media development, lifestyle and brand image, told in eight chapters.
Private for now
(07)
Ask about my work.
An AI built on Claude that answers only from what's on this site: my ventures, how I build, what I'm working on. It's one of the things I build, so try it.
AI answers can be wrong. For anything important, write to me. Questions are saved without your name so I can improve the site.
- Your question goes to Claude together with this site's public content, and nothing else.
- The answer streams back word by word, in your language, grounded only in that content.
- Questions are kept without names or addresses, so I can see what people want to know.
(08)
Statement
If I did it, you can too.
Let'sbuild.
(09)
If you've built or backed companies and would mentor a young founder, or you're a founder who wants to build together, I'd like to hear from you. I read every message myself, and if you're in Monterrey, coffee is on me.
Message me on WhatsApp+52 81 1910 9306