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You will get I will create a modern responsive website with Next/React and Node.js
Project details
I'll create a professional, modern website that drives results for your business. With 3+ years of full-stack development experience, I specialize in building responsive, fast-loading websites using React, Node.js, and modern web technologies.
What makes me different? I don't just code - I create digital experiences that convert visitors into customers. Every website I build is mobile-optimized, SEO-ready, and designed for performance.
You'll get:
-->Custom responsive design that looks great on all devices
--> Fast loading speeds and SEO optimization
--> Clean, maintainable code following best practices
--> Ongoing support and clear communication throughout
I work closely with each client to understand their unique needs and deliver solutions that exceed expectations. Whether you need a simple landing page or a complex web application, I'll bring your vision to life with professional quality and attention to detail.
Ready to take your online presence to the next level? Let's discuss your project!
What makes me different? I don't just code - I create digital experiences that convert visitors into customers. Every website I build is mobile-optimized, SEO-ready, and designed for performance.
You'll get:
-->Custom responsive design that looks great on all devices
--> Fast loading speeds and SEO optimization
--> Clean, maintainable code following best practices
--> Ongoing support and clear communication throughout
I work closely with each client to understand their unique needs and deliver solutions that exceed expectations. Whether you need a simple landing page or a complex web application, I'll bring your vision to life with professional quality and attention to detail.
Ready to take your online presence to the next level? Let's discuss your project!
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included $50
These options are included with the project scope.
$50
- Delivery Time 5 days
- Number of Revisions Unlimited
- Design Customization
- Content Upload
- Responsive Design
- Source Code
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MB
Muhammad B.
Jan 23, 2026
Expert Backend Developer for AI SaaS Bug Fix
Quickly identified the issue and fixed the backend bug with clean, efficient code, great AI SaaS expertise.
About Zubair
Lovable, Bolt & Replit App Fixes | Supabase, Stripe, Security Audit
Islamabad, Pakistan - 10:58 am local time
That gap between "it works in the demo" and "it survives real users" is what I fix.
I'm a full-stack developer (Node.js, Express, React/Next.js, Supabase, PostgreSQL) and a CEH-certified ethical hacker. Plenty of developers can add features to an AI-generated app. Fewer can look at that code and tell you which part will quietly leak your customers' data the week after launch. I do both.
WHAT I FIX
- Supabase Row Level Security: real tenant-to-tenant data isolation, not "RLS enabled" and hope for the best
- Broken authentication and sessions (Supabase Auth, JWT, OAuth, Auth0)
- Exposed API keys, secrets in the repo, service-role keys shipped to the browser
- Stripe and Lemon Squeezy billing: checkout, webhooks, idempotency, failed payments, plan gating
- Uncapped AI/LLM endpoints that let anyone run up your OpenAI or Claude bill
- Input validation, SQL injection, rate limiting, error handling
- Real backends added to frontend-only vibe-coded apps: schema design, APIs, migrations
- Deployments that hold: env vars, custom domains, CI/CD, Vercel, Docker, AWS
HOW I WORK
1. Send me your app link or repo. I take a look and tell you honestly what's wrong. No charge, no pitch.
2. You get findings ranked by severity, in plain English. "Any signed-in user can read every other customer's records", not a wall of CVE numbers.
3. We agree a fixed price per fix. Work is delivered as pull requests you review and approve. Your code stays yours throughout.
PROOF
- Shipped an AI study app, live on Google Play with 100+ users
- Built and deployed a RAG document Q&A chatbot for a SaaS client
- Production fintech work at VaultsPay: JWT auth, secure APIs, CI/CD pipelines
- Backend team lead on a 5-developer SaaS build (Node.js, React, MongoDB)
- CEH (Certified Ethical Hacker), EC-Council, 2025
- 5.0 on Upwork: hired to fix an AI SaaS backend bug, diagnosed and shipped inside 24 hours
WAYS TO START
- Free 15-minute review of your app before you spend anything
- Fixed-price security audit with a written, severity-ranked report
- Fixed-price rescue: auth, backend, payments and deployment sorted so you can launch
- Hourly or monthly retainer once you're live and want someone on call
Send me your app link and tell me what's breaking. If it isn't something I can genuinely help with, I'll tell you that too.
Keywords: Lovable developer, Lovable app fix, Bolt.new developer, Replit developer, Base44, v0, Cursor, vibe coding, vibe code rescue, AI app production ready, MVP rescue, Supabase RLS, Supabase auth, Supabase edge functions, PostgreSQL, Stripe integration, Stripe webhooks, Lemon Squeezy, Next.js, React, TypeScript, Node.js, Express, security audit, code review, bug fix, API development, full-stack developer.
Steps for completing your project
After purchasing the project, send requirements so Zubair can start the project.
Delivery time starts when Zubair receives requirements from you.
Zubair works on your project following the steps below.
Revisions may occur after the delivery date.
Project Planning & Design
I'll review your requirements, create a project plan, and design mockups for your approval before starting development.
Development & Coding
Build your website using modern technologies, ensuring responsive design and clean, optimized code.Development & Coding