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Fiverr Pro
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$
USD
I will add features to your existing website fix bugs fix errors
Arsalan
About this gig
Need help fixing bugs in your MERN stack web app? As a full-stack MERN developer, I troubleshoot and fix errors in MongoDB, Express.js, React.js, and Node.js. Whether its a React bug fix, Node.js error, Express routing issue, or MongoDB query problem, Ill resolve it quickly so your website runs perfectly again.
What I fix: I handle both frontend and backend issues, including:
- React.js component errors (state, props, hooks, UI glitches).
- Node.js/Express.js server/API errors or crashes.
- MongoDB connection, schema, and query issues.
- Authentication & security bugs (JWT, sessions).
- Deployment problems (e.g. Netlify, Heroku).
- Performance bottlenecks and code optimization.
My process: Tell me about your bug (error logs, screenshots, code). I will:
- Diagnose: Identify the root cause.
- Fix: Implement a clean, tested solution.
- Deliver: Provide updated code with comments and a summary of changes.
Deliverables: Youll receive:
- The fixed code (front and/or back end).
- Explanation of the issue & fix.
- (Optional) Suggestions for improvement.
Why choose me? Fast, professional service and 100% satisfaction guaranteed. I offer:
- Clear communication throughout the process.
- 24h response time.
Get to know Arsalan
Arsalan
Software Engineer Mern Stack Developer
- FromPakistan
- Member sinceApr 2026
- Avg. response time1 hour
Languages
English, Urdu, Spanish, French, Hindi, Italian, Arabic, Japanese
I am a MERN Stack Developer with hands‑on experience building dynamic, full‑stack web applications using MongoDB, Express.js, React, and Node.js. I am proficient in JavaScript, HTML, CSS, Bootstrap, and TailwindCSS.
My Portfolio
FAQ
Q1: What kinds of bugs do you fix?
A: I fix frontend and backend issues in MERN apps – React UI bugs, Node.js/Express server errors, MongoDB issues, authentication problems, deployment errors, etc. (Examples are in the gig scope.)
Q2: What do you need from me to start?
A: Share your project code (or a minimal reproducing repo) via GitHub/zip, plus error descriptions or screenshots. Access details (credentials) should be sent securely. This way I can diagnose issues quickly.
Q3: How quickly can you fix my bug?
A: Basic 1–2 day delivery for one bug (see packages). I usually respond within a few hours. For urgent fixes, select the “Extra Fast” gig extra or message me before ordering.
Q4: Do I need to provide design files or credentials?
A: For bug fixes, only the source code and environment details (e.g. Node version, database URL) are needed. No design files are required. If deployment issues, I might ask for hosting access (or login) to test.
Q5: How many revisions do I get?
A: I include unlimited revisions within the initial bug scope. If new issues appear beyond scope, we can discuss adjustments. My goal is your satisfaction
Q6: What if the bug is not found or too complex?
A: I’ll communicate if the issue lies outside the MERN stack scope or needs a larger overhaul. If I can’t fix within agreed scope/time, you may get a partial/full refund. I will try my best to resolve your issue as agreed.
Q7: How do I know you will keep my code confidential?
A: I respect your IP. I agree to NDA requests. I won’t reuse your proprietary code elsewhere. Use Fiverr’s secure file sharing and only communicate in Fiverr messages for safety.
Q8: Do you offer refunds?
A: Under Fiverr policy, if you’re not satisfied, you can request a cancellation for a full refund. I encourage open communication to avoid disputes. My track record is 100% satisfaction (see reviews).
