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Fiverr Pro
English
$
USD
I will develop or fix a full stack web app using mern, nextjs, and rest graphql apis
Utsav
About this gig
Need a highly functional, scalable, and tested web application?
I am a professional Full Stack Developer with experience delivering enterprise-scale solutions using the MERN Stack (MongoDB, Express, React, Node) and advanced frameworks like Nest.js and Next.js. Whether you need an app built from scratch, or a legacy system optimized, I provide robust, production-ready code.
My Expertise (What You Get):
- End-to-End Development: Complete lifecycle development, from database schema design to responsive frontend implementation.
- Scalable Architecture: Building backends using Node.js, Express.js, and the enterprise-grade Nest.js framework.
- Advanced API Integration: Expertise in developing and consuming robust RESTful and complex GraphQL APIs.
- Proven Performance: I specialize in optimization, having achieved a 30% backend performance boost through MongoDB aggregation pipeline optimization.
- Quality & Reliability: Implementing Unit Testing (Jest), secure authentication flows (JWT), and thorough debugging workflows.
- Technologies: React.js, Next.js, Redux, Node.js, Nest.js, MongoDB, MySQL, GraphQL, TypeScript.
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 Utsav
Utsav
- FromIndia
- Member sinceMar 2025
Languages
English, Hindi
As a skilled MERN stack developer, I specialize in developing dynamic and responsive web applications using mongodb, express, react and node js. With strong foundation in both frontend and backend, I focus in developing high-quality, user-friendly and scalable solutions that meet business requirements and enhance user experience. Passionate about clean code and modern development practices, I am dedicated to continuously learning and adapting to new technologies in the fast-paced world of web development.
FAQ
What is included in the "Basic: API Debug & Fix" package?
This is ideal for quick turnarounds. It includes debugging 1-3 specific errors (front-end or back-end), addressing one critical performance bottleneck, or integrating/fixing a single external API endpoint. We must define the exact scope before I begin.
Do you build the design (UI/UX) or just the functionality?
focus on building robust functionality and implementing a responsive UI based on the requirements you provide (wireframes, Figma/XD link, or basic sketches). I use modern libraries like Material UI or Tailwind CSS to ensure a clean, professional look and feel.
Which database systems do you prefer?
have strong experience with both NoSQL (MongoDB) and Relational (MySQL). For scalable, high-speed applications, I often recommend MongoDB with optimized aggregation, but I will use the database that best fits your project needs.
Can you deploy the final application for me?
Yes, but this requires the 'Deploy to Server' Gig Extra. I can assist with deployment on platforms like Vercel, Heroku, Netlify, or AWS (EC2/S3), provided you have the necessary accounts and credentials.
Why should I choose MERN/Nest.js for my project?
The MERN stack is highly efficient and uses a single language (JavaScript) across the entire application, leading to faster development. Nest.js provides an enterprise-grade, modular, and scalable architecture for the backend, which prevents headaches down the road.
