Software engineer + MBA building and shipping AI-powered SaaS products end-to-end.
TL;DR
- 🚀 Two exits: PlayGiga (acquired by Facebook, 2019) and co-founder of Draftea (sold my equity to Sequoia Capital).
- 🧠 Currently building and scaling AI SaaS for the construction industry (Presupuestor) as a solo founder at Empresa de Uno — a company of one running on multiple AI agents.
- ⚡ Strong bias for shipping: idea → production fast, measured against real business KPIs, not vanity metrics.
- 🤝 Comfortable talking about both code and unit economics — I bridge complex technical systems, product strategy and business goals.
| Product | What it does |
|---|---|
| 🧱 Presupuestor | AI that generates professional construction & renovation budgets in minutes, using up-to-date market prices. Built for pros tired of quoting by hand. |
| 📣 Comunicador | Helps organizations turn the news that matters into clear, timely social media content. |
| 📈 AIShip | Finance software with AI trading bots that automatically buy and sell US-listed stocks based on news published by the SEC. |
| 🚀 Empresa de Uno | A community for solo entrepreneurs building and scaling companies with AI agents. |
| 🐾 Tuli | AI-powered pet photo service that turns your pet into a new creative adventure every week. |
| 🎮 PlayGiga | Cloud gaming platform acquired by Facebook in 2019. |
| ⚽ Draftea | Fantasy sports platform for Mexico. |
| 📱 MencantaBrand | Started as Mencanta, a “Tinder for fashion” app; it later evolved into a women’s clothing brand. |
| 💼 PymeChat | “Your AI agent ready in 2 minutes” — enter your website URL and get a 24/7 sales & support agent on web and WhatsApp. Plug & play for non-technical SMEs. |
| 🏙️ Licenciator | B2B AI for Spanish urban-planning entities (ECUs): automatic document verification, virtual assistant for license queries, and AI-drafted technical reports. |
| ⚖️ Residencia Fiscal | AI assistant built on 106 Spanish court rulings (2015–2025) on tax residency (Art. 9 LIRPF). Answers residency questions citing the exact ruling and the judge's reasoning. |
| 📊 TopInvestors | Real-time analysis of your stocks through the lens of the top 100 market analysts — expert insights without the raw-data overwhelm. |
| ⚡ RapidTicker | Ultra-fast stock alerts via Email, WhatsApp & Telegram. Monitors SEC filings, press releases, NASDAQ & FINRA and pushes market-moving news within seconds. |
| 💬 Guapify | Consumer AI that enhances and optimizes photos to improve first impressions and match rate on dating apps. |
| 🏋️ ReservaGym | Auto-books your favorite gym classes the exact second slots open — no more refreshing the app at midnight. |
| 🏛️ Nieves Calvo | Fast, SEO-friendly portfolio for an architect & interior designer. Static hosting + dynamic UX, deployed on Cloudflare's edge. |
A selection of AI-driven systems I've designed and built for clients and myself:
- AI Algotrader — trading bot that analyzes SEC filings from publicly traded companies to derive signals.
- AI Setter Chatbot — multichannel agent (Instagram, WhatsApp, web) that qualifies leads and automates customer engagement.
- Outbound Email AI — analyzes incoming email, drafts replies and automates follow-ups; improved campaign conversion by +25%.
- Robo AI Caller — voice AI for outbound & inbound calls with personalized conversations for conversion and retention.
- Meeting Transcript Service — listens to in-person meetings, produces a structured legally-oriented summary, collects signatures and emails the PDF to all attendees.
- Influencer Digital Clone — replicates an influencer's tone and knowledge to engage followers at scale, on-brand.
- LinkedIn Automation — Chrome extension that automates content engagement to grow visibility and reach.
- Pet Owners Chatbot — WhatsApp-style assistant answering pet care, behavior and lifestyle questions.
- 🧰 neutral-llm-gateway — a small, honest gateway for LLM calls in Python. Typed contracts (Pydantic v2,
mypy --strict), thin adapters for OpenAI / Gemini / Groq, and explicit accounting of retries, fallbacks, tokens and cost: unreported usage isNone, unknown cost is never a fake$0, and a fallback is never silent. Extracted from the LLM plumbing behind several of the products above.
- 🎬 OpenMontage (44k+ ★) — PR #395: manifest-defined checkpoint approval profiles — reviewed and approved by the maintainer. Lets a project pick its own human-approval policy without touching pipeline defaults: cheap stages run to a full composition preview, a single approval is recorded at
compose, and the approved resume token becomes mandatory before any paid avatar generation runs. Fails closed by design — the persisted project marker is authoritative, so a per-call profile can never override it. +1013 / −30 across 13 files, including a 482-line contract suite covering defaults, profile overrides, approval persistence and resume validation.
Languages · Python · TypeScript / JavaScript · Bash
Web · React (SPA / PWA) · Tailwind CSS · HTML5 / CSS3 · SEO-friendly architectures
Backend & infra · FastAPI · PostgreSQL (Supabase) · Redis · Docker · Cloudflare Workers / Pages · Netlify
AI & automation · LLM agents & assistants (OpenAI, Gemini, Claude) · REST APIs / webhooks · n8n · Make
- 🌐 Website: miguelgutierrezbarquin.com
- 🧱 Building: presupuestor.com
- 👥 LinkedIn: linkedin.com/in/miguelgutierrezbarquin