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Fiverr Pro
Nederlands
$
USD
I will fix, debug, troubleshoot mern stack apps, develop restful apis
Abhijit
Over deze dienst
Is your MERN stack app throwing errors, crashing in production, or delivering slow API responses? You're in the right place.
I specialize in full-stack MERN stack development, fixing bugs, debugging frontend and backend issues, and building clean, high-performance RESTful APIs that scale with your business.
Here's what you'll get:
- Bug fixes across your full MERN stack (MongoDB/PostgreSQL, Express.js, React.js, Node.js)
- RESTful API development with routing, validation & error handling
- Database query optimization & faster API response times
- Authentication fixes (JWT, session, cookie & OAuth issues)
- Deployment troubleshooting (Vercel, Render, Heroku, Netlify, Railway)
- Security hardening & vulnerability patching
Why 100+ clients trust my MERN stack service:
- Clean, commented code, not rushed patches
- Every fix is tested before delivery
- Clear communication at every step
- Revisions until you're fully satisfied
No more chasing bugs alone. Send me a message before placing your order. Let's find the fastest path to a working, optimized app.
Maak kennis met Abhijit
Abhijit
Senior React Native and Full Stack Engineer
- Afkomstig uitBangladesh
- Lid sindsnov 2018
- Laatste levering5 jaar
Talen
Bengaals, Engels, Hindi
Hi, I'm Abhijit—a Computer Science Engineer with 5+ years of experience building high-performance mobile and web applications. I specialize in cross-platform mobile apps (React Native) and full-stack web systems (React, Next.js, Node.js, PostgreSQL, MongoDB).
Having delivered 30+ projects for US & European clients with 100% satisfaction, I focus on scalable architecture, pixel-perfect UI, and clean code. Whether you need a mobile MVP, custom API integrations, or end-to-end app development, I am here to help. Let's build something great!
Mijn portfolio
Veelgestelde vragen
What details do you need to start working on my issue?
I need a clear description of the problem, access to your code (GitHub repo or ZIP file), and any relevant credentials if deployment issues need fixing.
How long will it take to fix my issue?
It depends on the complexity of the issue. Simple bugs can be fixed within a few hours, while more complex issues may take longer. I’ll provide an estimated timeframe after reviewing the problem.
Can you fix both frontend and backend issues?
Yes! I specialize in troubleshooting and fixing issues in the entire MERN stack—MongoDB, Express.js, React.js, and Node.js.
Do you develop RESTful APIs?
Yes! I can develop high-performance, secure, and scalable RESTful APIs tailored to your application’s needs.
Do you offer video explanations of the fixes?
Yes, if needed, I can provide a short video guide explaining what was fixed and how you can prevent similar issues in the future.
What if I need ongoing support?
I offer extended support upon request. Let’s discuss your needs, and I can provide a custom offer for continued assistance.
Do you optimize code performance as well?
Yes! I can optimize API response times, improve database queries, and enhance your app’s overall performance.
Will you ensure my app is secure?
Yes! I can fix authentication issues, improve security, and implement best practices to keep your app safe.
How do I get started?
Please contact me before placing an order so I can review your issue and ensure I can provide the best solution. Send me a message, and let’s discuss your requirements! 🚀
