Ruben Sanchez
Available · May 2026 sprints

Ruben Sanchez

Production AI infrastructure for early-stage teams, shipped in weeks not quarters.

What I Build

Internal AI systems & internal app buildouts: Custom schemas, data architecture, and internal tools that let your team operate with AI-native infrastructure

Agentic systems & autonomous infrastructure: Multi-step autonomous agents, guardrailed execution loops, and agent orchestration that goes beyond single-task automation

AI-native memory & retrieval architecture: Custom memory structures, RAG, and data surfacing built specifically for AI consumption

On-device deployment & predictive analytics: Local model deployment, distillation, and predictive systems for use cases where API latency, cost, or privacy makes hosted models a non-starter

Production feature sprints: Ship backlog items and codebase pushes fast

Public Projects

Three live products spanning AI infrastructure, full-stack AI, and vertical SaaS — pattern across architectures, not just one trick.

Calculus Animator: AI tutor explaining a derivative step with model selector

Calculus Animator

Educational calculus platform demonstrating production AI patterns: multi-provider LLM routing across 3 backends, RAG-based knowledge retrieval via ChromaDB, and vision-enabled tutoring over a FastAPI bridge.

PythonFastAPIChromaDB3 LLM providers
Digital Sangha: yoga flow editor with AI assistant suggesting Sukhasana for centering

Digital Sangha

Local-first AI yoga companion. Multi-provider LLM routing across 4 backends, encrypted local credential storage, and Chroma-backed pose and theme retrieval. Delivered as web, desktop, and Discord interfaces over a single Svelte + FastAPI core.

PythonFastAPISvelte4 LLM providers
FencePro: vertical SaaS dashboard for fence contractors with project tracking and revenue overview

FencePro

Vertical SaaS prototype for fence contractors with production-shaped architecture. Working chat-driven estimate flow, full project lifecycle, revenue dashboard, and adapter-based Stripe + email integrations typed for clean production swap.

React 19TypeScriptViteMock Stripe + Email

How I Work

1-week discovery, 2-week build cycles

Flat-rate sprints, not hourly billing

You own the code, I own the infrastructure

Articles

Common Questions

What does an engagement typically cost?

Sprints run $1.5–5K, flat-rate. Founding-customer rates while I build out public case studies; rates will rise as the portfolio fills. Larger projects scoped at a comparable rate. Quote sent within 24 hours of the intro call.

What stack do you work in?

Python, TypeScript, Postgres, Supabase. Anthropic and OpenAI SDKs. Local model deployment, distillation, and predictive analytics where speed or privacy matters. Ships to production on Vercel + Supabase, the same stack most AI startups already run on, which is part of how the two-week timelines hold.

Book a 30-minute intro call →