Arreglaré errores y desarrollaré aplicaciones con react, nextjs y mern stack

N
numan_dev21
N
numan_dev21
Numan

Level 1

5.0
5.0
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fix bugs and develop react, nextjs, and mern stack applications
fix bugs and develop react, nextjs, and mern stack applications
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fix bugs and develop react, nextjs, and mern stack applicationsfix bugs and develop react, nextjs, and mern stack applicationsfix bugs and develop react, nextjs, and mern stack applicationsfix bugs and develop react, nextjs, and mern stack applicationsfix bugs and develop react, nextjs, and mern stack applicationsfix bugs and develop react, nextjs, and mern stack applications

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¿Luchas con errores en MERN STACK o necesitas nuevas funciones en NEXT.JS?


La lógica rota en el backend, problemas de sincronización de estado en React y APIs desordenadas en Node.js pueden detener tu proyecto. Necesitas un desarrollador full-stack senior que pueda aislar errores rápidamente, refactorizar código legado y construir funciones robustas.

Como ingeniero senior en MERN stack y Next.js, me especializo en desarrollo de aplicaciones web de extremo a extremo, corrección avanzada de errores y arquitectura limpia. Escribo código escalable y seguro que garantiza que tu plataforma funcione sin problemas.


LO QUE PUEDO HACER POR TI:

  • Depurar y solucionar errores en React, Next.js y backend en Node.js
  • Construir funciones personalizadas full-stack y componentes UI reutilizables
  • Desarrollar e integrar APIs RESTful y esquemas de bases de datos (MongoDB)
  • Optimización de gestión de estado y refactorización de rendimiento
  • Flujos de autenticación seguros (JWT, OAuth) y configuración de middleware


¿Por qué elegirme?

  • Experiencia comprobada: Ingeniería de nivel empresarial respaldada por calificaciones excelentes
  • Satisfacción 100%: Pruebas rigurosas hasta que tu código sea perfecto
  • Normas de producción: Arquitectura limpia, escalable y modular


¿Tienes un requisito personalizado? ¡Haz clic en "Contáctame" antes de hacer tu pedido!

  • Lenguaje de programación

    • JavaScript

  • Experiencia

    • Algoritmos y estructuras de datos
    • Depuración de código
    • Rendimiento
    • Seguridad
    • Bases de datos

  • Marco de frontend

    • bootstrap
    • Next.js
    • React.js
    • Tailwind CSS
    • Tkinter

  • Marco de backend

    • Django
    • Express.js
    • Flask
    • Next.js
    • Node.js

  • Desarrolladores de IA y código bajo/sin código

    • Lovable
    • Bolt.new
    • Claude
    • Firebase Studio
    • Base44
    • Co.dev
    • Cursor
    • Softgen
    • Replit
    • Bubble
    • FlutterFlow
    • Adalo
    • OutSystems
    • Mendix
    • Webflow
    • Retool
    • Glide
    • Thunkable
    • AppGyver
    • Creador de Zoho
    • Clutch.io
    • Wappler
    • Stacker
    • Softr
    • Ninox
    • Betty Blocks
    • V.One
    • UI Bakery
    • Backendless

Conoce a Numan

Numan

Software Engineer

4.9(11)

Level 1

  • DePakistán
  • Miembro desdemay 2025
  • Responde aprox. en:1 hora
  • Última entrega2 días

  • Idiomas

    Urdu, Inglés, Punjabí, Hindi, Francés, Ruso, Alemán, Español
I am a Meta Certified Full-Stack Web Developer & Software Engineer specializing in HTML, CSS, JavaScript, React, Next.js, and the MERN stack. I also work with Python, AI SaaS projects, custom AI agents, and n8n automation workflows to streamline tasks and optimize business processes. As a Vibe Coder, I create fast, responsive, and scalable websites and applications with seamless deployment on Netlify & Vercel. I deliver high-quality, professional solutions with clear communication and timely delivery to bring your ideas to life.

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Mi porfolio

Reseñas

5 comentarios sobre este Servicio
5.0

(5)
(0)
(0)
(0)
(0)
Desglose de calificaciones
  • Nivel de comunicación del Freelancer
    5
  • Calidad de la entrega
    5
  • Valor de la entrega
    5
Ordenar por
Más relevante
  • Y
    image-docs

    yosefsasftlas

    US

    Estados Unidos

    5

    He is a very talented designer although it wasn’t finished yet I trust that he will finish it and make sure it’s perfect he is very fast at coding and understands the project and does what ever is necessary to get the job done thank you and I look forward to working with numan in the future and to make sure my project is completed.

    USD 200-USD 400

    Precio

    3 Meses

    Tiempo

    Útil?
    Sí
    No
  • Y
    image-docs

    yosefsasftlas

    US

    Estados Unidos

    5

    Numan is a very talented coder front and backend super attention to detail great knowledge on how to code deep understanding when it comes to coding he is a pleasure to work with super fast and super patient anything that needs done he does instantly without hesitation I really appreciate working with...

    USD 100-USD 200

    Precio

    6 semanas

    Tiempo

    Útil?
    Sí
    No
  • Y
    image-docs

    yosefsasftlas

    US

    Estados Unidos

    5

    Numan is very talented coder he does a great job working on coding anything you need I really appreciate him being patient and understanding the project at hand and working very hard to complete it until it’s 100% perfect. I look forward to working with you in the future and finish my project thank you.

    USD 100-USD 200

    Precio

    8 semanas

    Tiempo

    Útil?
    Sí
    No
  • U

    user31590126

    CA

    Canadá

    5

    Numan is exceptionally knowledgeable and patient. I would not hesitate to hire him again.

    USD 50-USD 100

    Precio

    1 día

    Tiempo

    Útil?
    Sí
    No
  • Y
    image-docs

    yosefsasftlas

    US

    Estados Unidos

    5

    Numan is a very good coder he understands what you want done and can execute very quickly is patient and attentive to detail if anything is wrong he will fix it without hesitation he is super driven and motivated which is very helpful when working with him I enjoy working with him and look forward to...

    USD 100-USD 200

    Precio

    3 semanas

    Tiempo

    Útil?
    Sí
    No
Reseñas

5 comentarios sobre este Servicio
5.0

(5)
(0)
(0)
(0)
(0)
Desglose de calificaciones
  • Nivel de comunicación del Freelancer
    5
  • Calidad de la entrega
    5
  • Valor de la entrega
    5
Ordenar por
Más relevante
  • Y
    image-docs

    yosefsasftlas

    US

    Estados Unidos

    5

    He is a very talented designer although it wasn’t finished yet I trust that he will finish it and make sure it’s perfect he is very fast at coding and understands the project and does what ever is necessary to get the job done thank you and I look forward to working with numan in the future and to make sure my project is completed.

    USD 200-USD 400

    Precio

    3 Meses

    Tiempo

    Útil?
    Sí
    No
  • Y
    image-docs

    yosefsasftlas

    US

    Estados Unidos

    5

    Numan is a very talented coder front and backend super attention to detail great knowledge on how to code deep understanding when it comes to coding he is a pleasure to work with super fast and super patient anything that needs done he does instantly without hesitation I really appreciate working with...

    USD 100-USD 200

    Precio

    6 semanas

    Tiempo

    Útil?
    Sí
    No
  • Y
    image-docs

    yosefsasftlas

    US

    Estados Unidos

    5

    Numan is very talented coder he does a great job working on coding anything you need I really appreciate him being patient and understanding the project at hand and working very hard to complete it until it’s 100% perfect. I look forward to working with you in the future and finish my project thank you.

    USD 100-USD 200

    Precio

    8 semanas

    Tiempo

    Útil?
    Sí
    No
  • U

    user31590126

    CA

    Canadá

    5

    Numan is exceptionally knowledgeable and patient. I would not hesitate to hire him again.

    USD 50-USD 100

    Precio

    1 día

    Tiempo

    Útil?
    Sí
    No
  • Y
    image-docs

    yosefsasftlas

    US

    Estados Unidos

    5

    Numan is a very good coder he understands what you want done and can execute very quickly is patient and attentive to detail if anything is wrong he will fix it without hesitation he is super driven and motivated which is very helpful when working with him I enjoy working with him and look forward to...

    USD 100-USD 200

    Precio

    3 semanas

    Tiempo

    Útil?
    Sí
    No

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