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I will fix bugs, optimize or refactor your react nextjs tailwind codebase
Aminul Islam
5.0
5.0
About this gig
Struggling with bugs, slow performance, broken features, or messy code in your React, Next.js, or Tailwind CSS project?
I quickly diagnose, fix, and improve frontend codebases delivering clean, fast, reliable results.
Common issues I handle:
- UI/layout bugs (responsiveness, styling conflicts, component errors)
- State/logic problems (Redux/Zustand, hooks, routing issues)
- Performance bottlenecks (slow loads, re-renders, image optimization)
- Code refactoring & cleanup (better structure, remove duplicates, modernize)
- TypeScript migration or fixes
- SEO/performance tweaks (Core Web Vitals, lazy loading, SSR/SSG improvements)
- Cross-browser/device compatibility issues
Fast, clear communication + detailed explanations of what was fixed.
My portfolio includes complex fintech (Bixcel) and SaaS dashboard (DealerCore) projects built with Next.js + Tailwind so your app is in good hands.
Send repo link, error screenshots, or live URL let's get it running smoothly again!
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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 Aminul Islam
Aminul Islam
Senior Full Stack Software Engineer React Nextjs Nodejs 5 Years Experience
- FromBangladesh
- Member sinceJan 2021
- Avg. response time1 hour
- Last delivery3 weeks
Languages
Bengali, English
Senior Full Stack Software Engineer with 5+ years building production-ready web apps, from pixel-perfect frontends to scalable backends.
Stack: React, Next.js, Node.js, TypeScript, PostgreSQL, MongoDB, AWS, Docker.
What I deliver:
- Full stack web apps and SaaS platforms
- REST APIs and Node.js backends
- SEO-optimized Next.js websites
- React dashboards with real-time data
- Stripe payment integration
- Figma to React, pixel-perfect
Clean code, mobile-first, on-time delivery, source code included.
Message me - I reply within the hour.
My Portfolio
FAQ
What do I need to provide to start?
Repo link (GitHub/GitLab), live URL, screenshots/videos of bugs, error messages/console logs, or a brief description of issues.
What kind of projects do you work on?
React, Next.js (App Router/Pages), Tailwind CSS, plain JS/TS, Redux/Zustand, Framer Motion — anything frontend-focused. Backend fixes (Node/Express) only if minor and related.
Do you provide a report or explanation?
Yes — detailed summary of issues found, fixes applied, and suggestions (especially in Standard/Premium).
Can you handle TypeScript or complex state management?
Yes — TypeScript errors/fixes, hooks, context, Redux, Zustand, etc., are common.
Will you refactor messy/AI-generated code?
Absolutely — I clean up "vibe code", remove duplicates, improve readability, and make it production-ready.
How do you handle revisions?
Unlimited within the original scope (fixing reported bugs, minor tweaks). Major new features or scope changes may require extra time/fee.
Do you test on multiple devices/browsers?
Yes — fixes are tested across Chrome, Firefox, Safari, Edge, and mobile views (responsive checks included).
Can I get the fixed code via GitHub?
Yes — I can push changes to a branch/PR or send zipped files. Private repo access optional (extra if needed).
What if the issue is backend-related?
I focus on frontend — for full-stack issues, I can advise or fix frontend parts only (e.g., API call handling).
How fast is turnaround?
Basic: 1 day. Standard: 2–4 days. Premium: 5–10 days. Rush available as add-on.
Reviews
1 reviews for this Gig
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D dominikgraf707
Switzerland
Understood my tasks clearly and helped me untangle my spaghetti code in a very structured and efficient way. The implementation was technically clean, well thought out, and delivered quickly. Communication throughout the process was smooth, responsive, and easy to follow. In addition, they identified...
$200-$400
Price
10 days
Duration
A 
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Reviews
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
D dominikgraf707
Switzerland
Understood my tasks clearly and helped me untangle my spaghetti code in a very structured and efficient way. The implementation was technically clean, well thought out, and delivered quickly. Communication throughout the process was smooth, responsive, and easy to follow. In addition, they identified...
$200-$400
Price
10 days
Duration
A Seller's Response
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