NexumHub - Project Control Center

About Me

Hi there! I'm Carlos De Leon, a Software Engineer currently completing a development internship at a tourism technology company serving Mexico and the Dominican Republic. Previously, I spent 10+ years as a COO and General Manager in the Hospitality Industry, where I successfully led teams of 100+ professionals and managed operations generating $1.5M USD in monthly revenue with 30% profit margins.

Today, I’m focused on building modern, scalable, and responsive web applications with React, Next.js, Astro, Tailwind CSS, and Firebase, with a strong emphasis on clean code, performance, and intuitive UI/UX. My leadership background adds proven strengths in project management, data-driven decision making, and thriving under pressure which I bring to every technical challenge I take on.

Experience

Frontend Developer

Tourism Tech Solutions • Mexico & Dominican Republic

Currently in a development internship building production-ready applications for airport and e-commerce clients using React, Tailwind CSS, Next.js, ASTRO and REST APIs.
Led the implementation of a dynamic coupon system with Google Wallet and Apple Wallet integration, collaborating with backend teams to deliver seamless payment flows.
Self-taught developer advancing through hands-on projects, technical documentation, and structured online learning while pursuing formal certification.
Multilingual communicator: Spanish (native), English (C1), Portuguese (B1) — enabling effective collaboration across international teams and clients.
Leverage 10+ years of operations leadership to drive technical projects with clear architecture decisions, stakeholder alignment, and consistent delivery.

ReactNext.jsTailwind CSSAstroREST APIsGraphQLFirebaseShopify APIFramer Motioni18nZustand

Experience

Frontend Developer

Tourism Tech Solutions • Mexico & Dominican Republic

Currently in a development internship building production-ready applications for airport and e-commerce clients using React, Tailwind CSS, Next.js, ASTRO and REST APIs.
Led the implementation of a dynamic coupon system with Google Wallet and Apple Wallet integration, collaborating with backend teams to deliver seamless payment flows.
Self-taught developer advancing through hands-on projects, technical documentation, and structured online learning while pursuing formal certification.
Multilingual communicator: Spanish (native), English (C1), Portuguese (B1) — enabling effective collaboration across international teams and clients.
Leverage 10+ years of operations leadership to drive technical projects with clear architecture decisions, stakeholder alignment, and consistent delivery.