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I design, build and ship complete products: from the data model and security to the interface. Two AI-powered SaaS products in production in 2026.

Software engineer · Madrid
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About

Luis Marquina Rodríguez
Madrid · 40.4° N

I love taking ideas to production. I work across the stack — Rust, TypeScript, Python and SQL — obsessed with security, data privacy and the details users notice.

I lead the technical development of Zeonida, an AI assistant for Spanish court representatives and lawyers that never stores client data, and I built Inmovira, a real estate SaaS that crawls listing portals every hour and verifies private sellers with AI. Background in Software Engineering (U-tad, Data Engineering track) and 42 Madrid.

Selected work

Things I’ve built

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Zeonida01

Zeonida

2026

Co-founder · Software engineer

AI assistant for court representatives and lawyers. The firm keeps the data; Zeonida thinks and forgets.

  • Rust backend (Axum, Tokio, sqlx) and React 19 + TypeScript web app; version 1.0.0 live at zeonida.com.
  • Pseudonymisation enforced by the type system: the model port only accepts pseudonymised text. Core compiled to WASM for an in-browser private mode.
  • Named-entity recognition with XLM-RoBERTa on ONNX Runtime, Tesseract OCR and procedural deadline computation with each judicial district’s holidays.
  • Rust
  • Axum
  • React 19
  • TypeScript
  • PostgreSQL
  • WASM
  • ONNX
  • Docker
Visit ↗
Inmovira02

Inmovira

2026

Founder · Full-stack engineer

Real estate SaaS: finds homes listed by private sellers and turns them into leads.

  • Crawler that monitors several listing portals every hour through per-country proxies, plus a two-stage AI pipeline that verifies private sellers.
  • Multi-tenant CRM with per-agency isolation, real-time WhatsApp alerts (Gemini) and price history per property.
  • Express 5 + TypeScript API with strict Zod validation, rotating refresh tokens, CSP and self-managed VPS deployment.
  • TypeScript
  • Express 5
  • Astro
  • Turso
  • Gemini
  • WhatsApp
  • Tailwind
Visit ↗
03

Skyline Logistics

2025

Academic project

Logistics simulation in Java with a clean layered architecture.

  • Singleton, DAO and Strategy design patterns.
  • Strict separation of domain, persistence and presentation.
  • Java
  • OOP
  • GoF patterns
  • UML
Code ↗
04

MovieApp

2025

Android app

Android app with MVVM architecture, the TMDB API and Firebase favourites.

  • Kotlin, Jetpack and coroutines.
  • REST API consumption and cloud persistence.
  • Kotlin
  • Jetpack
  • MVVM
  • Firebase
Code ↗
05

Campus 42

2023 — 2025

42 Madrid · Fundación Telefónica

C programming curriculum: libft, push_swap, ft_printf and more.

  • Algorithms and data structures from scratch.
  • Peer learning and project-based evaluation.
  • C
  • Algorithms
  • Makefile
  • Bash
Code ↗

Journey

Experience & education

  1. Oct 2026 — now

    Co-founder · Software engineer

    Zeonida — LegalTech

    Architecture and development of the stateless legal assistant: Rust API, React web app, pseudonymisation, AI on European servers, continuous deployment and observability.

  2. Jul 2026 — now

    Founder · Full-stack engineer

    Inmovira — PropTech

    Complete product in production: distributed scraper, AI pipeline, multi-tenant CRM, WhatsApp bot and public website.

  3. 2021 — 2027

    BSc Software Engineering

    U-tad · Madrid

    Data Engineering track: data modelling, pipelines, AI, computer vision, recommender systems and IoT.

  4. 2023 — 2025

    Intensive programming

    42 Madrid · Telefónica Foundation

    Peer-to-peer, project-based methodology: C, algorithms, systems and teamwork.

Stack

Tools I work with

Languages

  • Rust
  • TypeScript
  • Python
  • JavaScript
  • Java
  • Kotlin
  • C
  • SQL
  • Bash

Frontend

  • React
  • Next.js
  • Astro
  • TanStack
  • Tailwind CSS
  • GSAP

Backend

  • Axum
  • FastAPI
  • Node.js
  • Express
  • REST
  • OpenAPI
  • WebSockets

Data & AI

  • PostgreSQL
  • pgvector
  • ONNX Runtime
  • LLMs
  • Pandas
  • TensorFlow
  • Spark

Infra

  • Docker
  • Cloudflare
  • GitHub Actions
  • Linux / VPS
  • Sentry
  • Vercel

Security

  • AES-256-GCM
  • JWT
  • CSP
  • Zod
  • RLS
  • Privacy by design

Contact

Let’s talk.

Open to software engineering, full-stack and AI roles. Drop me a line.

lmrodriguez2017@gmail.com
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