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I will fix slow site next js to sveltekit rewrite to boost speed
Muhammad Raheel
About this gig
STOP hiring junior devs who break your production build. I've fixed 14 broken Next.js apps. If you're battling slow load times, hydration mismatches, or Webpack/Vite confusion, you need surgical precision not guesswork.
I am a senior full-stack developer (6+ years) using Typescript & Javascript across frontend, backend, and APIs. I specialize in Next.js to SvelteKit rewrites that crush Core Web Vitals. My code prioritizes speed, scalability, and real-time performance.
Your Pain Points Solved
- Slow LCP/FID? I implement aggressive code-splitting and Svelte compile-time optimizations for sub-800ms loads.
- Legacy React/Webpack? I migrate to modern Vite/Webpack 5, cutting build times by 60%.
- API/Database Hell? I build robust REST/GraphQL layers with Firebase or Supabase, ensuring seamless real-time sync.
- White Screens? I enforce strict Typescript and error boundaries to kill runtime exceptions.
My Promise: I deliver a fully documented, production-ready build with zero breaking changes to your existing database or backend logic.
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Get to know Muhammad Raheel
Muhammad Raheel
React and Next js Developer 6 Years Experience Full Stack
- FromPakistan
- Member sinceJun 2026
- Avg. response time1 hour
Languages
Urdu, English
Full-stack developer with 6+ years of experience specializing in React, Next.js, Svelte, and Node.js. I build high-performance, scalable web applications from lightning-fast frontends with either React/Next or SvelteKit to robust REST APIs with Node.js. Whether you need a SaaS MVP, an e-commerce platform, or a custom dashboard, I deliver clean code, perfect Core Web Vitals, and on-time results. Let's turn your vision into reality, message me for a custom offer!
FAQ
Do you work with SvelteKit SSR and Next.js ISR?
Certainly. With 6+ years of full-stack experience, I expertly handle SvelteKit Server-Side Rendering, Next.js Incremental Static Regeneration, and real-time data synchronization via REST APIs and GraphQL subscriptions. My server logic is built for speed and reliability.
Can you migrate my existing React app to SvelteKit without breaking my database?
Ys I've migrated legacy React codebases to SvelteKit while preserving database integrity (PostgreSQL, MongoDB, Firebase). I implement a dual-write strategy during migration to ensure zero downtime. My backend orchestration ensures your API endpoints remain consistent throughout the rewrite.
Will you fix my Core Web Vitals and slow load times?
That is my primary outcome. I optimize Largest Contentful Paint by eliminating render blocking resources, reduce First Input Delay through efficient Javascript chunking, and fix Layout Shift with proper image sizing. I use Typescript to catch performance at compile time ensuring scalability.
Do you handle both frontend and backend development for these stacks?
As a true full-stack engineer, I write the frontend UI in Svelte/React and the backend microservices in Node.js. I build robust authentication flows, connect to real-time web sockets, and design RESTful APIs that serve data efficiently. I bridge the gap between client-side UX and server-side logic.
How do you ensure the application is scalable for high traffic?
I implement caching headers, leverage serverless functions for heavy compute, and design the database schema to handle thousands of concurrent users. My code is modular, using dependency injection and factory patterns in Javascript to allow horizontal scaling without rewriting the core logic.
