I will make your react or nodejs app faster

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Renato Rocha

About this gig

You feel your application is slow, unstable or not scaling as expected?

I help startups, businesses and developers optimize the performance of React, Next.js and Node.js applications, focusing on real bottlenecks that impact speed, stability and user experience.

Instead of generic advice, I analyze your application structure, rendering flow, backend logic and data handling to identify what actually slows your system down.

What I can help you with:

Frontend performance optimization (React / Next.js)

Backend and API performance improvements

Reduce unnecessary re-renders and heavy operations

Optimize data fetching and server logic

Improve overall speed, stability and scalability

What makes this service different:

Performance optimization based on real analysis

Clean, maintainable and scalable solutions

No overengineering or unnecessary changes

Clear communication and practical improvements

I treat every project as a real production system, focusing on long-term performance and reliability.

Please contact me before ordering so I can review the application scope and performance goals.

Get to know Renato Rocha

Renato Rocha

High Performance Web Developer Businesses

  • FromBrazil
  • Member sinceJun 2025
  • Avg. response time8 days
  • Languages

    Portuguese, Spanish, English
About Me A technology enthusiast, I had my first contact with the data field in 2016 when I began my journey as a Young Apprentice. Since then, I’ve been developing essential skills such as teamwork, discipline, and adaptability. I had the opportunity to join a company that provided me with *support and the right tools to take my first steps in the field—and that’s when I knew for sure: technology is where I want to build my professional future, using and transforming data to create value for people. Throughout my journey, I’ve worked with Java and VueJS and expanded my technical expertise w

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