Modern Figma-to-Next.js E-Commerce Rebuild with FastAPI & Stripe

Dayan

Dayan Ahmed

Transforming an Outdated Store Into a Modern High-Performance E-Commerce Experience

Overview

My client approached me with a complete Figma design and a clear goal: migrate their outdated WordPress store into a modern, scalable, and visually appealing e-commerce platform. The brand was growing, but the old site’s slow performance, inconsistent UI, and limited customization held them back.
Using Next.js, Tailwind CSS, TypeScript, FastAPI, and Stripe, I rebuilt their entire online experience from the ground up—turning static design concepts into a polished, conversion-optimized e-commerce product.

Challenges

Outdated WordPress site with poor UI/UX and slow loading times.
Limited customization, making updates and design alignment difficult.
Fragmented backend logic, leading to inconsistent performance.
Inefficient checkout experience, causing drop-offs.
Need for a modern, reliable, and scalable architecture aligned with the new Figma designs.

My Approach

1. Pixel-Perfect Frontend Development

I translated the Figma designs into a responsive UI using:
Next.js (App Router)
Tailwind CSS for utility-first styling
TypeScript for better maintainability and type safety
The result was a modern, smooth, and fully responsive interface that matched the client’s new brand vision exactly.

2. Custom Backend With FastAPI

To replace the limitations of WordPress plugins, I built a scalable backend using:
FastAPI for high performance
Modular architecture for future features
API endpoints for products, categories, authentication, and orders
This gave the client full control without the bloat of their previous system.

3. Stripe Integration for Payments

I implemented:
Secure payment flows
Webhook handling for order confirmation
Stripe Dashboard configuration
This resulted in a seamless and reliable checkout experience that significantly improved conversion flow.

4. E-Commerce Functionality

The platform includes:
Product pages with dynamic content
Cart and checkout flow
Real-time inventory updates
User-friendly category navigation
Mobile-optimized shopping experience
Every element focused on performance and simplicity.

Solution Delivered

The final product brought the client’s Figma vision to life as a fully functional, modern web application. The site transitioned from a slow, outdated WordPress build to a lightweight, scalable, and conversion-driven e-commerce platform

Key Results

✔ 60% faster page load speed compared to the previous WordPress site
✔ Fully responsive, modern UI aligning perfectly with the Figma design
✔ Smooth checkout experience powered by Stripe
✔ Scalable backend built on FastAPI ready for future product expansion
✔ Improved user engagement & reduced bounce rate thanks to an optimized layout
✔ Seamless migration from old architecture to a modern tech stack

Outcome

This project successfully elevated the brand's online presence, improved overall performance, and provided the client with a modern, maintainable infrastructure that supports growth. The new site not only reflects their identity more accurately but also enhances user trust and increases sales potential.
#nextJS #tailwindcss #figma #python #typescript #fastapi
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Posted Nov 28, 2025

Revamped an outdated WordPress store into a fast, modern Next.js e-commerce site with Tailwind, FastAPI, and Stripe—boosting performance, UX, and conversion.