Web products
Sites and apps with Next.js, TypeScript and a precise interface. From a landing to a product in production.
Services
I design and ship web products from idea to production. Next.js, TypeScript, Node.js and LLM integration — with a careful interface and architecture that scales.
What I build
Multi-tenant SaaS
Platforms with auth, billing, onboarding and an admin panel. The same kind of system behind GymRat+.
AI agents and LLMs
Agents, MCP, RAG and model workflows with validation and execution controls.
Payments and integrations
Stripe, MercadoPago, WhatsApp, APIs and automation. The product wired into the business.
Interface design
Clear UI, type and contained motion. Design and frontend in the same hands, no broken handoff.
Mobile and AR
Flutter or React Native apps, and augmented reality when the project calls for it.
Pricing
Landing or site
1–2 weeks
- Design and frontend
- Up to 5 sections
- Responsive and basic SEO
- Deploy on Vercel
$1,800
Web product / MVP
3–6 weeks
- Auth, dashboard and CRUD
- API and database
- Full UI
- Launch to production
$4,500
SaaS / platform
6–12 weeks
- Multi-tenant and billing
- Onboarding and admin
- Architecture ready to grow
- Payments (Stripe or MercadoPago)
$8,500
AI agent / LLM
2–4 weeks
- Flow and prompt design
- Model API integration
- An interface to use it
- Basic quality evaluation
$2,800
Retainer
Monthly, renewable
- Improvements and features
- Product support
- Calendar priority
$1,200/ month