Pitaya | Multi-Vendor Commerce & Marketplace Platform by Abderrahmen LahmediPitaya | Multi-Vendor Commerce & Marketplace Platform by Abderrahmen Lahmedi

Pitaya | Multi-Vendor Commerce & Marketplace Platform

Abderrahmen Lahmedi

Abderrahmen Lahmedi

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1 collaborator

Overview

Pitaya is a multi-vendor commerce platform that connects buyers and sellers through a customer-facing mobile app and a seller management dashboard. The ecosystem supports product discovery, ordering, payments, inventory management, and marketplace operations.
As a Senior Full-Stack Engineer, I contributed to the platform’s core architecture, mobile and web experiences, backend systems, and third-party integrations for users, products, orders, payments, and seller operations.

The product challenge

Pitaya needed to keep buyer, seller, backend, and external-commerce data in sync while delivering clear workflows for shopping, checkout, inventory management, and order fulfillment. The product also needed a scalable foundation for a growing multi-vendor marketplace.

What I built

Buyer mobile application

I developed customer-facing mobile features with React Native and Expo, including onboarding, authentication, product discovery, category browsing, cart management, checkout, order tracking, and profile management. The focus was a responsive shopping experience that made finding and purchasing products feel simple on mobile.

Seller dashboard

I built and maintained the Next.js seller dashboard, giving merchants practical tools to manage products, update inventory, process orders, track sales, manage store information, and monitor marketplace activity.

Marketplace backend and APIs

I worked on backend services and APIs for user management, product catalogs, seller operations, order processing, customer accounts, payments, and third-party synchronization. These systems connected the mobile application, seller dashboard, and external services into one marketplace workflow.

Shopify and payment integrations

I implemented Shopify synchronization workflows for product data, inventory updates, order exchange, and store-management automation. I also integrated Stripe for secure checkout, transaction handling, and payment-status tracking.

Data, authentication, and access control

I worked with PostgreSQL, Prisma ORM, and Supabase to model and support marketplace data across users, sellers, products, orders, transactions, and related business relationships. Clerk authentication, role-based access control, and session management supported distinct customer, seller, and administrator experiences.

Outcome

The work delivered a connected commerce ecosystem across mobile, seller web, backend, payments, and Shopify. It gave buyers a full shopping flow, gave sellers tools to run daily marketplace operations, and established scalable foundations for multi-vendor growth.

Stack

React Native, Expo, TypeScript, Next.js, Node.js, PostgreSQL, Prisma ORM, Supabase, Clerk, Stripe, Shopify APIs, and cloud services.
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Posted Jul 3, 2026

Built Pitaya’s multi-vendor marketplace across a React Native app, Next.js seller dashboard, backend APIs, Shopify sync, and Stripe payments.