Description

Product-minded Senior Software Engineer with 8+ years of experience architecting scalable platforms. Expert in bridging the gap between modern Full Stack development (Next.js, React Native) and Data Engineering (PostgreSQL, Supabase). Currently focused on building AI-native applications, leveraging Python and Vector Databases to integrate LLMs into production workflows. Proven track record of shipping 0→1 products that generate tangible revenue (€1.5M+ ARR impact).

Languages

English
Native or bilingual
Spanish
Native or bilingual

Workplace preferences

Can work on-site

Madrid (up to 50km)

Independant
Independent Consultant Senior Product Eng ineer (Freelance / Consulta nt)
DIGITAL AND IT
October 2025 - Today (8 months)
Madrid, Spain
RAG Implementation: Developing custom AI agents for business clients using Python and Supabase Vector, enabl ing automated document retrieval and customer support interactions. Web Architecture: Architecting high-performance web applications with Next.js and TypeScript, opt imizing for SEO and Core Web Vitals.
Typescript React.js Next.js PostgreSQL TailwindCSS
Enso coliving Real Estate
Founding Tech Lead & Product Architect
April 2023 - October 2025 (2 years and 6 months)
Madrid, Spain
Next.js (App Router), Node.js (Serverless Functions), PostgreSQL, Python (Data Automation), React, Tailwind CSS, Stripe API, Docker
System Architecture: Rebuilt the company's entire digital ecosystem (0→1) using Next.js and PostgreSQL , moving from low-code to a scalable proprietary stack handling €1.5M+ in annual transactions. Automated Revenue: Architected the Self-Serve Booking Engine with Stripe integration, generating €30k/weekly in automated revenue and eliminating manual sales friction. Intelligent Wo rkflows: Engineered an algorith mic tenant qualifi cation system that analyzed use r data points to automate approvals, reducing manual operations by 90%. Data Engineering: Designed complex SQL schemas and Row Level Security (RLS) policies to secure sensitive financial data and optimize query performance.
Mindera Consultancy
Senior Software Engineer & Tech Lead (Web & Mobile)
April 2021 - April 2023 (2 years)
Kinder- und Jugendhauses „UK“, Chemnitz, SN, Germany
TypeScript | React | React Native | Node.js (BFF Middleware) | GraphQL | Jest (TDD) | Cypress | CI/CD (GitHub Actions) | AWS (S3/Lambda)
Legacy Migrati on: Led the strategic migration of legacy monol iths to modern React architectures, reducing feature delivery cycles by 40%. Mobile Parity: Drove the adoption of React Native for key product features, ensuring seamless code sharing between web and mobile platforms. Quality Engineering: Enforced Test-Driven Development (TDD) and CI/CD pipelines, resulting in a 60% reduction in critical production bugs. Design Systems: Architected a multi-brand Design System that standardized UI components across 3 global products.