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Leonardo Miraglia

@leonardomiraglia

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Senior front-end engineer focused on performance, features, and scalable web UI.

Brazil

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What I'm looking for

I’m looking for a team where I can own front-end features and performance: modern frameworks, measurable UX wins (LCP/INP), and clean CI/CD. I want challenging product work with room to mentor and improve the engineering workflow.

I’m a Senior Front-end engineer with a track record of shipping features and fixing critical bugs on high-traffic products. I’ve worked in environments where reliability and performance improvements directly impact user experience and business outcomes.

Most recently, I supported a high-traffic ticket sales platform by driving feature development, critical bug fixes, and performance improvements using SvelteKit. I’m comfortable owning the details end-to-end—from implementation through validation—especially when the system is already under heavy load.

Previously, I strengthened a main website with SEO and PageSpeed Insights-driven improvements, including major gains to LCP and INP. I also led a codebase migration to SvelteKit with Tailwind, and improved CI/CD pipelines for front-end projects, reducing build time by 80% on average.

Earlier in my career, I built web apps using React, Redux, Sass, and contributed to systems with real-time file processing interfaces. I started with web development using Laravel (PHP) and Bootstrap (CSS), and I enjoy turning practical engineering work into measurable, user-centered results.

Experience

Work history, roles, and key accomplishments

Senior Front-end Engineer

Globant

Nov 2025 - Feb 2026 (3 months)

Worked on a high-traffic ticket sales platform for a major theme park and delivered feature development, critical bug fixes, and performance improvements using SvelteKit.

SvelteKit TypeScript Adobe AEM

Frontend Engineer

Buson

Jul 2021 - Nov 2025 (4 years 4 months)

Frontend work at the main website improving SEO, pagespeed insights and common features.

• Heavy improvements at LCP and INP home page, 400% better loading speeds;

• Worked at codebase migration to SvelteKit with Tailwind, unlocking a better enviroment for developers;

• Improved CI/CD pipelines for frontend projects, reducing build time in 80% average;