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I will fix node js backend bugs and secure rest API authentication
Aizaz
About this gig
Is your backend server crashing under minor traffic? Are your API endpoints returning unhandled runtime errors?
From faulty middleware to broken authentication logic, I optimize your Node/Express pipelines for stability and security.
️ Backend Services Offered:
- Express JS Debugging: Repairing broken routing, syntax errors, and server-side runtime crashes.
- Database Optimization: Fixing MongoDB cluster authentication errors and cleaning Mongoose schemas.
- JWT Authentication: Setting up secure JSON Web Tokens, refresh token rotation, and route protection.
- CORS & Environment Fixes: Solving Cross-Origin Resource Sharing restrictions and config errors.
Get to know Aizaz
Aizaz
MERN Stack Developer and Full Stack Web Engineer
- FromPakistan
- Member sinceMay 2020
- Last delivery1 year
Languages
English
Hi, I’m Aizaz Haider, a passionate Software Engineer and Full-Stack MERN Stack Developer. With a strong foundation in Computer Science and 800+ LeetCode problems solved, I specialize in building scalable, high-performance web applications using React.js, Node.js, Express.js, and MongoDB.
Whether you need a custom MERN stack e-commerce platform, Next.js web app, secure RESTful APIs, or Redux state management, I deliver clean, optimized code. Let's collaborate to transform your complex ideas into powerful digital solutions. Contact me today!
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FAQ
What kind of backend issues do you troubleshoot?
I resolve any node js backend crashes, runtime syntax flaws, server route configuration errors, middleware conflicts, asynchronous execution bugs, and broken third-party API configurations inside your express js api.
Do you set up secure JWT Authentication from scratch?
Yes. I can integrate or fix ironclad jwt authentication systems. This includes generating secure JSON Web Tokens, creating route guard middleware, token storage logic, and password encryption using $bcrypt$ to keep user credentials safe.
Can you fix cluster connection errors and Mongoose schema failures?
Yes. If your backend cannot connect mongodb or is failing on Mongoose schema validation queries, I will audit your connection strings, IP whitelists, network access parameters, and database schemas to restore a clean, high-speed data flow.
