I will fix bugs and errors in your react, next js or node js app

I
imorejon
I
imorejon
Ismael M
Algumas informações são exibidas no idioma inglês.
fix bugs and errors in your react, next js or node js app
Tela Inteira
fix bugs and errors in your react, next js or node js app
Tela Inteira
Tela Inteira
fix bugs and errors in your react, next js or node js appfix bugs and errors in your react, next js or node js appfix bugs and errors in your react, next js or node js app

Sobre este Serviço

Your app is broken and you need it fixed - without a week of back and forth.


I'm a full-stack developer (TypeScript, React/Next.js, Node/NestJS) at a data analytics company. I debug production code every day and I bring that discipline here: reproduce first, find the root cause, fix it, and prove it's fixed.


How it works:


  • You send repo access (GitHub/GitLab), the error and how to reproduce it
  • I confirm the diagnosis and scope before starting
  • You get the fix as a pull request with a clear explanation of what was wrong
  • Standard and Premium include a regression test so the bug stays dead

What I fix:


  • React/Next.js: rendering bugs, hydration errors, state issues, broken builds
  • Node/Express/NestJS: API errors, crashes, async bugs, dependency conflicts
  • Performance: slow pages, memory leaks, N+1 queries (Premium)

Not included: new features, full rewrites, WordPress/PHP themes, code without reproduction steps (I can quote those separately).


Not sure which package fits? Message me with the error and I will tell you honestly.

  • Linguagem de programação

    • JavaScript

  • Especialidade

    • Depuração
    • Localização
    • Desempenho

  • Estrutura de front-end

    • Next.js
    • React.js
    • Tailwind CSS

  • Estrutura de back-end

    • Express.js
    • FastAPI
    • NestJS
    • Next.js
    • Node.js

Conheça mais sobre Ismael M

Ismael M

Full Stack Developer

  • A partir deEspanha
  • Membro desdejul. de 2026
  • Responde em aprox.:5 horas

  • Idiomas

    Espanhol, Catalão, Inglês
I am a Full Stack Developer specializing in building end-to-end SaaS products with React, NestJS, and TypeScript. I have experience leading migrations, designing API architectures, and optimizing complex systems to ensure high performance and reliability. My focus is on delivering robust solutions that meet business needs and scale effectively.

Meu portfólio

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