David Rodriguez Pozo

AI Product Engineer · Barcelona

AI Product Engineer at Haddock (YC W22) — building AI products at the intersection of software engineering, data science, and finance. Previously CTO & Co-Founder at Numerand.

Software engineer with an aerospace background and an MSc in Data Science & AI (distinction) from the University of London. Over 5 years I've built full-stack platforms — from data pipelines to frontend UI — at Cofi, and then as co-founder & CTO of Numerand, a Barcelona fintech building AI agents for SMBs. Now an AI Product Engineer at Haddock (YC W22), shipping LLM-powered products that turn restaurant financial data into decisions.

AI Product Engineer

Haddock (YC W22)2026 —

Building AI products for the hospitality industry — LLM agents and assistants that turn supplier invoices and sales data into decisions restaurant operators can act on.

CTO & Co-Founder

Numerand2025 — 26

Led engineering and product for a Barcelona-based fintech startup. Built a multi-agentic system for financial data analysis and SMB automation with LangGraph, LangChain and OpenRouter.

Software & Data Engineer

cofi.ai2021 — 25

Built a financial planning & analysis platform — computational engine, data pipelines, and a multi-agentic system for building financial models and reports.

Junior Software Developer

Deister Software2020 — 21

Built data-intensive web applications with Vue.js, Node.js and Informix SQL. Designed a high-performance POS system with Redis + RediSearch.

MSc Data Science & AI

University of London2020 — 23

Graduated with distinction. Thesis on early detection of Parkinson's Disease using SVM, Neural Networks and Random Forest.

MSc Aerospace Engineering

ESEIAAT-UPC2019 — 21

Studied aerospace, aeronautical and astronautical engineering, building a foundation in rigorous analytical and systems thinking.

Numerand

2025 — 26

Fintech platform for financial data analysis and automation, built around a multi-agentic system for SMBs. Co-founded it and led product and engineering as CTO.

TypeScript Python Next.js FastAPI LangGraph AI/ML

NovoSend

Active

File sharing platform with end-to-end encryption, password protection and total customization for creative freelancers.

TypeScript Nuxt.js Cloudflare E2E Encryption

QueryVeil

Active

AI-powered data analysis that runs entirely in the browser. Ask questions in plain English, get instant SQL-backed answers with charts and dashboards.

TypeScript Nuxt.js LangGraph OpenRouter DuckDB Vercel

Agents UI

Active

Open-source visual dashboard for managing Claude Code agents, skills, and workflows. Includes an agent studio, workflow builder, and template marketplace.

TypeScript Nuxt.js Claude Open Source

Almaria

Experiment

A fictional Mediterranean kingdom whose daily newspaper, El Heraldo de Almaria, is written each morning by 9 LLMs from 9 providers playing 9 political roles. A Backstage toggle reveals what was spun, buried, or omitted.

Nuxt.js TypeScript OpenRouter Multi-LLM Supabase Vercel

Sort My Thoughts

Discontinued

Personal productivity app for organizing thoughts, ideas, and notes with an intuitive interface.

Vue.js TypeScript FastAPI LangGraph AWS Vercel

Invoice Generator

Open-source tool for generating professional invoices programmatically.

Python Nuxt.js Vercel

TimeSeries

Time series analysis and forecasting library with support for multiple models and evaluation metrics.

Python PyPI ML

Crypto Hash Functions

Educational implementations of cryptographic hash functions from scratch.

Python Cryptography
LanguagesPython · TypeScript · JavaScript · SQL
BackendFastAPI · Node.js · PostgreSQL · Redis
FrontendVue.js · Nuxt · React · Tailwind CSS
AI / MLLangGraph · LangChain · PyTorch · LLMs · NLP
CloudAWS · GCP · Docker · Terraform · CI/CD
SpokenSpanish · Catalan · English · French

Open to discussing new projects, ideas, or opportunities.