Sebastian
Guzman

Frontend Engineer
Specialized in React, Next.js & Node.js with enterprise experience. Building scalable web products focused on performance and accessibility. Available for new projects.
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About Me

Frontend Engineer passionate about creating exceptional digital experiences

Frontend Engineer with a passion for innovation

With over 3 years of experience developing modern, scalable web applications, I specialize in React, Next.js and TypeScript. My focus is on creating intuitive, performant interfaces that improve the user experience.I have worked on enterprise projects in sectors such as Media (OTT) and Energy, collaborating with international teams and applying agile methodologies. Committed to code quality and continuous learning.
ReactNext.jsTypeScriptNode.jsGraphQLAWS

Clean Code

Clean, maintainable and scalable code following best practices

Performance

Optimization and performance in every line of code

Collaboration

Effective teamwork with agile methodologies

Innovation

Always learning new technologies and improving
  • ReactNext.jsTypeScriptNode.jsGraphQLAWSTailwind CSSGitHub ActionsSEO

Featured Projects

A selection of enterprise projects I've worked on, from OTT platforms to energy management dashboards
View all projects

Professional Experience

Career in frontend and fullstack development for enterprise projects

Frontend Engineer

Fides ConsultingReply / Mediaset Infinity
Milan, Italy
Jan 2025 – Present
  • Development with Next.js 15 (App Router), TypeScript and GraphQL
  • Implementation of advanced SEO strategies and Structured Data (JSON-LD)
  • Collaboration in Agile/Scrum teams with CI/CD via GitHub Actions

Full Stack Engineer

AvvaleENI
Milan, Italy
Jun 2022 – Jan 2025
  • Full Stack dashboard for real-time service monitoring (React, Node.js)
  • HR management system with digital signatures (React, Redux, Fluent UI)
  • Development of internal timesheet system

Frontend Engineer

SOJACA EIRL
Santo Domingo, Dominican Republic
Aug 2020 – Dec 2020
  • Development with React, TypeScript, Redux Toolkit and Node.js
  • Modular interfaces with a focus on usability
  • Maintenance of secure and documented REST APIs

Contact

Interested in collaborating? Feel free to get in touch

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