Buenos Aires → Remote · Full-Stack & AI
I BUILD
WEB & AI
PRODUCTS
I build web products and AI systems for international clients. Based in Buenos Aires, working remotely.
What I do
SERVICES
FULL-STACK DEVELOPMENT
Web apps and APIs built with React, Next.js, and Node.js.
- ›Next.js App Router & React Server Components
- ›REST & GraphQL APIs with Node.js
- ›Vercel, Railway, or VPS deployment
AI & CHATBOT DEVELOPMENT
LLM tools and RAG pipelines built for production, not just demos.
- ›RAG pipelines with citation & refusal guardrails
- ›No-code UIs for non-technical teams
- ›Prompt testing & output quality evaluation
CRM DEVELOPMENT
Custom CRMs built around your workflow, not a vendor template.
- ›Contact & pipeline management
- ›Google Sheets / Notion / Airtable integrations
- ›Automation with Zapier or Make
DIGITAL ADS & GROWTH
via dubanronald.comPaid media by dubanronald.com, focused on measurable results.
- ›Google Ads & Meta Ads setup and management
- ›Landing page creation & A/B testing
- ›Monthly reporting with clear ROI metrics
Selected work
PROJECTS
PRODUCTION RAG CHATBOT
Internal knowledge chatbot for a London-based company. Sentence-aware chunking, cosine retrieval, citation enforcement, and refusal guardrails. No-code UI lets non-technical staff update the knowledge base without touching code.
Who I am
ABOUT
Full-stack developer and AI specialist, based in Buenos Aires. I build web apps, AI tools, and CRMs for international clients.
More at santiagovittor.com→Tech stack
Get in touch
CONTACT
Prefer to chat directly?
Message on WhatsApp→
By the numbers
PROOF
Years at FoodStyles
LLM training adoption
Prompt mastery program