Sergio Medina

I’m a developer focused on building practical systems that combine automation, artificial intelligence, and modern full-stack technologies. I help businesses grow faster by turning time consuming processes into streamlined systems leveraged in AI and software, with a clear focus on measurable results.

My Approach: My work is driven by real business outcomes: increasing revenue, reducing operational costs, and freeing up teams to focus on what matters. I prioritize clean, maintainable code and scalable architecture, and I like to ship in tight feedback loops so solutions improve quickly in the real world.

What I Do: I specialize in full stack development with React, Next.js, Node.js, and cloud platforms like AWS and Vercel. In the past few years, I’ve been heavily focused on integrating AI into business operations, especially in outreach and sales automation. One example is an AI powered deep personalization cold outreach system I built for a digital growth agency, which generated over €20,000 in new sales opportunities in under 30 days by automating lead research, personalized messaging, and follow ups to deliver a recurring pipeline of clients.

Outside of work, you’ll usually find me with a guitar in my hands, at the gym, or diving into whatever I’m curious about next.