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$
USD
I will develop and debug your backend web application
Sairaj K
About this gig
I will develop, debug, and optimize your backend web application using Node.js, Express.js, Python, FastAPI, MongoDB, and MySQL. I provide clean, secure, scalable APIs, bug fixing, database integration, authentication (JWT), performance optimization, and well-structured source code with professional communication and on-time delivery.
Get to know Sairaj K
Sairaj K
Computer Engineering Student
- FromIndia
- Member sinceJun 2026
Languages
Hindi, Marathi, English
I am a Computer Engineering student with a strong foundation in full-stack development and AI automation. I have experience building multi-agent search engines and mood-based recommendation systems using Python, FastAPI, and React.js. I am focused on optimizing data structures and algorithms to build production-oriented, scalable software solutions.
FAQ
. Which technologies do you use?
I work with Node.js, Express.js, Python, FastAPI, MongoDB, MySQL, Git, GitHub, and REST APIs.
Can you fix existing backend bugs?
Yes. I can debug and fix issues in existing Node.js, Express.js, and Python backend projects
Will you provide the source code?
Yes, all packages include complete source code unless stated otherwise.
Can you connect my backend to MongoDB or MySQL?
Yes. I can design databases, create schemas, optimize queries, and integrate your application.
Do you deploy backend applications?
Yes. I can deploy your backend to platforms like Render, Railway, Vercel, or other supported hosting providers.
Can you integrate third-party APIs?
Absolutely. I can integrate payment gateways, email services, cloud APIs, and other third-party services.
