Hi! My name is Sergio, and I’m a Spanish game designer and developer. I’ve been living in Madrid for over a decade, where I’m currently completing a Master’s Degree in Game design in Complutense University of Madrid, and previously studied Videogame design and development + Computer Engineering in Rey Juan Carlos University.
Since I was young, I’ve always been a communicative and dedicated person, deeply interested in both technology and art—especially in the form of books, music, series, and above all, video games. My passion for literature led me to start writing my own blog, where I shared poetry and short stories. Eventually, I realized I wanted to go a step further: to create worlds and experiences that others could explore and enjoy. That’s when I set my sights on becoming a game designer.
I started my academic path with a double degree in Game Design and Development and Computer Engineering at Universidad Rey Juan Carlos. This blend of creative and technical studies laid the foundation for my professional growth and adaptability.
After finishing most of my university subjects, I did an internship at Spika Tech, where I got to work with Unity and Unreal, as well as VR technology. I then worked for two years as a Software Developer at Vexcel Spain, where I developed full-stack web applications, managed geospatial data using OpenLayers and AWS, and collaborated in agile teams using Jira, Confluence and GitHub.
Alongside my technical background, I’ve always been focused on game design. I’m currently part of the design team behind Lilith: Rise of the Fallen, a horde-survival action game developed in Unreal Engine 5 as part of my TFM. My work involves documentation, system and level design, enemy balancing, and user experience analysis, among others. I have been part of a multi-disciplinary team of 20+ people, using Jira, Notion and Perforce.
Beyond formal projects, I’ve also been active as a freelance game designer, especially creating homebrew content for TTRPGs like Dungeons & Dragons or Candela Obscura. I enjoy worldbuilding, map design with tools like Inkarnate and World Anvil, and experimenting with new mechanics. For nearly five years, I’ve also been the Game Master of a long-running tabletop group, which has allowed me to playtest much of my custom content and refine it through direct player feedback. I frequently join game jams, where I prototype ideas and work in small creative teams. Some of these projects are featured in the Portfolio section or on my itch.io page.
Additionally, I’ve studied English for several years at The Cultural English Centre and hold the Cambridge CPE (C2) certificate, which allows me to communicate fluently in professional and creative contexts.