You will get your Next.js or Node.js app cleaned up, stabilized, and production-ready
Top Rated
Project details
I will review and improve your existing Next.js or Node.js codebase so it is easier to maintain, safer to ship, and more reliable in production. This is a strong fit for projects that were rushed, vibe-coded, handed over poorly, or have started breaking as the product grew.
What I can help with:
1️⃣ Code cleanup and refactoring
2️⃣ Bug fixing
3️⃣ Architecture review
4️⃣ Performance improvements
5️⃣ API and database fixes
6️⃣ Reliability and production-readiness improvements
Why clients hire me for this kind of work:
✅ 5+ years building and improving full-stack web applications and AI-enabled products
✅ Clean, secure, and scalable implementation with long-term maintainability in mind
✅ Practical product thinking, not just isolated ticket delivery
Tech I work with most often:
⚡️ TypeScript, JavaScript, Next.js, Node.js, React
⚡️ PostgreSQL, MySQL, MongoDB, Prisma
⚡️ OpenAI, Anthropic, AI workflow integrations
⚡️ Auth, API security, caching, and backend reliability improvements
If you have an app that works but feels fragile, messy, slow, or risky to extend, I can help turn it into something you can ship and build on with confidence.
What I can help with:
1️⃣ Code cleanup and refactoring
2️⃣ Bug fixing
3️⃣ Architecture review
4️⃣ Performance improvements
5️⃣ API and database fixes
6️⃣ Reliability and production-readiness improvements
Why clients hire me for this kind of work:
✅ 5+ years building and improving full-stack web applications and AI-enabled products
✅ Clean, secure, and scalable implementation with long-term maintainability in mind
✅ Practical product thinking, not just isolated ticket delivery
Tech I work with most often:
⚡️ TypeScript, JavaScript, Next.js, Node.js, React
⚡️ PostgreSQL, MySQL, MongoDB, Prisma
⚡️ OpenAI, Anthropic, AI workflow integrations
⚡️ Auth, API security, caching, and backend reliability improvements
If you have an app that works but feels fragile, messy, slow, or risky to extend, I can help turn it into something you can ship and build on with confidence.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$119
|
Standard
$199
|
Advanced
$399
|
|---|---|---|---|
| Delivery Time | 2 days | 3 days | 4 days |
Number of Revisions | 2 | 2 | 2 |
Bug Investigation | |||
Fix Documentation | |||
Detailed Code Comments |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$49
13 reviews
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AN
Arsenii N.
Mar 29, 2025
Code Refinement & Enhancements (mostly Frontend + JS + CSS)
RM
Raymond M.
Sep 16, 2024
Front-end Engineer with React, Next.js, and Tailwind Experience
CK
Christopher K.
Jun 24, 2024
Javascript help: Need Number that is sent to Total Cost price input to be formatted a USD currency.
Alamin was a pleasure to work with, very responsive and fast on completing the tasks. Look forward to future work together!
RP
Roundabout P.
Jun 10, 2024
Lunchtime Poll website
Alamin provided the expertise we needed to get this project finished. Responsive, quick, and knowledgeable.
AD
Andrea D.
Dec 11, 2023
TypeScript Developer for Cloudflare Worker (Remote)
Was an very experimental project, and I love how professional and flexible he was. I recommend this freelancer with no hesitation!
About Alamin
I extend existing React.js/Node.js apps | Integrate AI | Clean up code
100%
Job Success
Bagerhat, Bangladesh - 1:28 pm local time
🤖 Built an AI-powered lead qualification workflow that reduced manual work and VA dependency by approximately 80% while enabling 24/7 qualification.
🧑💻 Used Codex inside Spork Bytes, a ~100k-line production codebase, to map dependencies and build workflow automation expected to save 14+ hours of manual work weekly.
HOW I CAN HELP
- Take over, understand, and safely extend an existing React.js and Node.js application
- Integrate practical AI features and business process automation
- Clean up fragile, rushed, or AI-assisted code
- Fix bugs, performance issues, unreliable workflows, and technical debt
- Improve auth, billing, APIs, databases, admin tools, and deployments
WHAT YOU CAN EXPECT
- Clear communication about scope, risks, and trade-offs
- Careful work around existing behavior and business-critical workflows
- Clean, maintainable implementation rather than short-term patches
- AI-assisted development with human ownership of architecture, security, and production risk
If your application already works but feels fragile, difficult to extend, or ready for practical AI integration, send me the current situation and your highest-priority goal.
Steps for completing your project
After purchasing the project, send requirements so Alamin can start the project.
Delivery time starts when Alamin receives requirements from you.
Alamin works on your project following the steps below.
Revisions may occur after the delivery date.
Initial Audit
- Review the current codebase and architecture - Identify vulnerabilities, inefficiencies, and scaling issues
Cleanup & Optimization
- Refactor messy or redundant code - Apply best practices for readability and maintainability - Improve performance (queries, memory usage, API calls, etc.)