I will improve your react or nextjs website performance and SEO


Over deze dienst
Your website already works. It just loads too slowly, loses search visibility, or has accumulated frontend debt.
I audit and improve real React and Nextjs codebases. This is not a template website service.
I focus on the issues that affect production products:
Core Web Vitals and Lighthouse bottlenecks
JavaScript, images, fonts and third-party scripts
React and Nextjs rendering boundaries
Technical SEO, crawlable routes and metadata
Monitoring, analytics and safe production changes
You get a clear before-and-after summary, implemented fixes within scope, and a practical backlog for the rest.
I build production e-commerce experiences at MANGO, including global store search for around 3,000 locations, loyalty, navigation, performance and technical SEO.
Message me before ordering if your work spans multiple apps, a monorepo, or needs a larger refactor.
Respecteer de rechten van derden
Let erop dat het tegen het beleid van Fiverr voor freelancers is om thema's, templates of andere elementen in het geleverde werk op te nemen die inbreuk maken op de rechten van derden of toepasselijke wetten. Lees er meer over in onze Gids voor verantwoorde digitale creatie.
Maak kennis met Sergi Botargues
Freelance developer helping businesses ship faster
- Afkomstig uitSpanje
- Lid sindsaug 2021
Talen
Spaans, Catalaans, Engels
Mijn portfolio
Veelgestelde vragen
Do you work with existing React or Nextjs projects?
Yes. I work inside existing production codebases, start with an audit, then implement the highest-impact fixes within your package scope.
Can you guarantee a Lighthouse score?
I do not promise a fixed score. Results depend on hosting, third parties and the current architecture. I will target the highest-impact issues in scope and explain the tradeoffs.
Do you need repository access?
For implementation, yes. For an audit-only start, a live URL and an existing performance report can be enough.

