Overall, I think this is a good premise for a novel, though I'm not certain that it's young adult fiction. You don't specify the age of the main character in the story, but for YA fiction, Dimas should be within a few years of your target audience, so he should be under 18 for certain. This feels similar to Neuromancer and Johnny Mnemonic to me. Think about where you're going with this novel and make it fit with the genre!
A futuristic tale of a cunning, corrupt thief surviving in a despotic realm, equipped with clever, visionary tools. Interesting, flowing, engaging with mystery dangerously looming. Perfect YA book for sci-fi readers to explore. I wish you much success. I would buy this for my 25 year old nephew in a minute as he would "jones" on it big time. *smile*