Software Engineer · Full-Stack & AI
“I build products from idea to production.”
SaaS & AI systems · Android apps · Interactive software
Web app that recommends video games using a database enriched with subjective/semantic values through AI, all driven by natural language.
Mini-lab where an LLM answers questions using information extracted from texts that we previously ingested into a RAG.
Mini-lab where we build a simple MCP with a client and a server that exposes a set of Tools and Resources to query and edit a SQLite database.
A casual puzzle game with short, fast-paced rounds that combines strategy, logic and combo hunting with roguelite mechanics.
A collection of brain games to train memory, logic and concentration. Sudoku, Nonograms, Numberlink... With more than 50K downloads.
A narrative horror/comedy video game where you must solve puzzles to advance the story. Second and final part of the saga.
The beginning of the "Casa Manu" saga. A narrative horror/comedy video game where you must solve puzzles to advance the story.
I'm Joaquín, an independent software developer working under the name deMarjal.
My background combines computer science and visual arts, and for years I've worked mainly on video games, mobile apps and educational software. Over the last year I've broadened my profile towards full-stack development and AI-based products.
I like to understand a problem properly, think the solution through and build it from start to finish. Fitting into a single discipline isn't what drives me; I care about having a broad view and finding the right way to make things work.
2006–2010
Technical Engineering in Computer Systems - Multimedia
Universitat Politècnica de València
2010–2011
Higher Technician in Graphic Design
2012–2014
Master's in Visual Arts and Multimedia
Universitat Politècnica de València
2017
Game Design and Development
Coursera
