Sergio Castro

I am a Senior Software Engineer with 6+ years of experience focused on the JavaScript ecosystem. I currently work at GlobalLogic as a Mobile Engineer, building scalable cross-platform apps with React Native, Expo, and TypeScript.

My background includes full-stack web development with Node.js and React, alongside frontend work on data-heavy dashboards. I care about clean code, practical architecture, and shipping features on time with strong test coverage.

Before my current role, I worked at Apex Systems modernizing React applications and navigation flows, and at Pixelbot building REST APIs, SPAs, and mobile apps on the JS/TS ecosystem.

Core Skills

Frontend & Mobile: React, React Native, Expo, TypeScript

Backend: Node.js, REST APIs, SQL, NoSQL

Quality & DX: Testing Library, React Router, Tailwind CSS, Nativewind

You can find my work on GitHub and connect with me on LinkedIn .

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