2t0r
Full Stack Engineer
AI-native development
Building products that scale
Engineering mindset.
Studying Computer Engineering at UC3M while building real products for real clients.
I'm not the typical junior who ships code and disappears. When I take on a project, I think about how it'll scale, what will break first, what vulnerabilities it has, how to optimize its performance. I care that what I build works well six months from now, not just today. I've worked with companies across different industries delivering systems with real users, real transactions and real production requirements.
Full Stack
Frontend with React and Next.js, backend with Node.js and Python, relational and cache databases. I cover the full stack without depending on anyone to connect the pieces.
AI-native
I integrate LLMs into products from the design stage — not as an add-on, but as a core part of the experience. LangChain, OpenAI and Anthropic APIs, extraction and generation pipelines.
Infrastructure
Docker, Kubernetes, AWS. I design with deployment in mind from the start — not as something to figure out when the server goes down at 3am.
Product
Code is the means, not the end. What I deliver has to solve a real problem. I like to understand the business before opening the editor.
Selected Work
Devolot — TikTok Live Commerce
Full e-commerce system integrated into TikTok Live streams. Registered users buy products by typing keywords in the chat in real time. Includes a StreamDeck-connected management panel, prepaid bonus system, chat monitoring bot and real-time inventory sync.
QuoteAI — AI-powered Quotes
SaaS that generates professional quotes and invoices through a chatbot. The user describes what they need in natural language, the AI builds the document with their terms, and exports to PDF instantly. Includes magic link signing, multi-company support and an intake chatbot for inbound client requests.
Personal Finance App
Personal finance app with a clean shadcn/ui interface. Biometric authentication, E2EE encrypted cross-device sync, and clear financial state visualization. Built so there's no excuse not to track your money.
Client Websites & Stores
Landing pages and stores for companies across sectors: construction in Germany, building services in Spain, Shopify e-commerce with an automated catalog extraction pipeline from a supplier's website. Full delivery — design, development and deployment.
Tools & Technologies
The tools I reach for when building real things.
Frontend
React & Next.js for interfaces, Tailwind for styling, Framer Motion and GSAP for animation, Three.js for 3D. Prismic and Shopify for content-driven and e-commerce projects.
Backend
Node.js and Python for APIs and services. PostgreSQL as the main database, Redis for cache and queues. Docker for containerisation and consistent environments across dev and prod.
Infra & AI
Docker for containerisation, CI/CD pipelines for automated deploys. Prometheus for metrics, BullMQ for job queues. LangChain and the OpenAI and Anthropic APIs for LLM-powered features.
Cryptography
Symmetric (AES-GCM) and asymmetric (RSA, ECDSA) encryption. Digital signatures, X.509 certificates, TLS/mTLS, key derivation (PBKDF2, Argon2), and E2EE protocol design.
Let's build something.
Open to freelance, collaborations, internships and interesting projects. No filter — if you have something in mind, write.
What I can help with
Product development
Full-stack web and mobile apps from idea to production.
AI integration
LLM-powered features, chatbots, extraction and generation pipelines.
Infrastructure
Docker, Kubernetes, AWS. Deployments that don't wake you up at 3am.
Technical consulting
Architecture reviews, performance, security — a second pair of eyes.