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I will fix react nextjs nodejs bugs and api errors
Hamza Nasar
About this gig
Is your React, Next.js, Node.js, or MERN web app broken, slow, or missing an important feature?
I will help you fix bugs, solve errors, improve existing functionality, and add new features to your web application without breaking the current system.
I can help with React.js bugs, Next.js bugs, Node.js API errors, NestJS issues, Express.js problems, MERN stack bug fixing, REST API errors, authentication issues, dashboard issues, database bugs, responsive UI problems, deployment errors, Docker setup, FastAPI fixes, Django fixes, OpenAI API, chatbots, RAG, and AI integrations.
I can also add new pages, APIs, forms, filters, dashboards, admin features, backend endpoints, and frontend improvements to existing web apps.
Why choose me?
I work like a practical full-stack engineer. I first understand the issue, reproduce the bug, find the root cause, then fix it cleanly. My goal is not just to patch the problem, but to make sure your app works properly after the fix.
You will get clean and maintainable code, a clear explanation of what was fixed, fast communication, bug fixing for existing apps, feature updates without unnecessary rewrites, and support for frontend, backend, API
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Hamza Nasar
Hamza Nasar
React Nextjs Nodejs AI Web App Developer
- FromPakistan
- Member sinceAug 2024
Languages
Urdu, English
Hi! I'm Hamza, a full-stack developer & AI chatbot specialist. I build scalable SaaS dashboards, custom web apps and intelligent chatbots using Next.js, MERN & OpenAI. Over 3+ years I've delivered many projects across industries. I focus on clean code, performance & great user experience. Let's work together to turn your idea into a modern application or AI chatbot that grows your business.
My Portfolio
FAQ
What do you need from me to get started?
Please provide a detailed overview of your project requirements, desired features, existing code or design assets, and any branding guidelines. If you have a repository or hosting environment, share access so I can set up the dashboard.
Can you implement authentication and role-based access?
Yes. I can implement secure user authentication using JWT or session-based login and configure role-based access for admins and users. This ensures only authorized users can access specific sections of your dashboard.
Will you integrate third-party APIs or databases?
Absolutely! I can connect your dashboard to third-party APIs or external databases (e.g., payment gateways, CRM, analytics services) and ensure smooth data exchange with proper authentication.
Can you deploy the dashboard to my hosting provider?
Yes. I can deploy your dashboard to Vercel, Netlify or any other hosting provider you prefer, and I provide guidance on configuring environment variables and CI/CD for smooth deployment.
