I will fix nextjs bugs, react, nodejs API issues and jest tests

R
rasel_fullstack
R
rasel_fullstack
Rasel Ahmed
fix nextjs bugs, react, nodejs API issues and jest tests
fix nextjs bugs, react, nodejs API issues and jest tests
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fix nextjs bugs, react, nodejs API issues and jest testsfix nextjs bugs, react, nodejs API issues and jest testsfix nextjs bugs, react, nodejs API issues and jest testsfix nextjs bugs, react, nodejs API issues and jest testsfix nextjs bugs, react, nodejs API issues and jest testsfix nextjs bugs, react, nodejs API issues and jest tests

About this gig

Is a critical runtime error, broken API endpoint, or failing build stopping your production? Look no further!


As an experienced full-stack engineer, I specialize in debugging and resolving complex errors across modern web applications. Whether you need to fix Nextjs bugs, resolve state issues in React, or debug Node.js backend endpoints, I deliver clean, permanent solutions backed by automated tests so bugs never return.


What I Fix & Debug:

  • Frontend Issues: Hydration errors, Tailwind/Shadcn layout breaks, and React hooks issues
  • Backend & API Bugs: Node.js, Express, REST, and GraphQL API errors
  • Database & Auth: PostgreSQL, Prisma queries, MongoDB aggregations, and JWT/RBAC token errors
  • Type Safety & Builds: Complex TypeScript compile errors and failing Vercel/Docker builds
  • Automated Testing: Writing unit and integration tests using Jest & Supertest to prevent regression


Why Work With Me?

  • Root-cause diagnosis without messy hotfixes
  • 100% test-verified code with zero side effects
  • Rapid turnaround and clear communication


Lets get your web application running smoothly. Send me a direct message with your error logs or repo access before ordering!

  • Platform

    • Custom

  • Website type

    • E-Commerce store
    • Business
    • Landing page
    • Education
    • Saas

  • Programming language

    • JavaScript
    • TypeScript
    • HTML & CSS
    • Bootstrap
    • jQuery
    • React
    • Other
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Get to know Rasel Ahmed

Rasel Ahmed

Full Stack Developer, NextJs, NodeJs and AI Web Solutions

  • FromBangladesh
  • Member sinceFeb 2026
  • Avg. response time1 hour

  • Languages

    Bengali, English
Hi, I’m Rasel, a professional Full Stack Developer specializing in Next.js 15, React, TypeScript, and Node.js. I build and rebuild scalable web applications, modern responsive frontends, and secure backends with REST and GraphQL APIs. I also implement AI-driven solutions, including RAG pipelines, LLM integration, and third-party API connections with automated Jest testing to ensure 100% bug-free performance. Looking for clean architecture, fast delivery, and scalable code? Send me a message, and let's discuss your project today!

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