Custom Multivendor E-Commerce Platform Full-Stack Project

Project Overview

We architected and implemented a fully customizable multivendor e-commerce platform, capable of supporting multiple sellers, multi-language audiences, and secure, region-aware payments. While the system leverages a content management core, the backend and frontend layers are heavily customized with proprietary logic to match complex business requirements.

Technologies & Skills Used

• Platform Development: PHP, JavaScript, custom admin/vendor dashboards, scalable server-side logic
• Internationalization: Multilingual infra, content localization, RTL, currency formatting
• Payment Integration: Multi-gateway, secure checkout, fraud detection
• Frontend: Mobile-first, dynamic rendering, real-time analytics
• Security & Architecture: Role-based access, secure APIs, geo-based delivery

Key Features

• Multivendor marketplace with isolated dashboards
• Multilingual UI, dynamic content, localized notifications
• Custom checkout and payment integration
• Admin oversight, commission settings, real-time logs
• Performance-optimized, CDN-ready architecture

Code Showcase

function authorizeRole($requiredRole) {
    session_start();
    $user = $_SESSION['user'] ?? null;

    if (!$user || $user['role'] !== $requiredRole) {
        http_response_code(403);
        echo json_encode(['error' => 'Unauthorized']);
        exit;
    }
}

function processCheckout($cart, $userId) {
    $total = 0;

    foreach ($cart['items'] as $item) {
        $price = getPriceWithVendorCommission($item['id']);
        $total += $price * $item['quantity'];
        updateStock($item['id'], $item['quantity']);
    }

    $orderId = saveOrder($cart, $userId, $total);
    sendOrderConfirmation($userId, $orderId);

    return ['status' => 'success', 'order_id' => $orderId];
}

Technical Achievements

• Scaled to support 100+ vendors with simultaneous transactions
• Real-time multi-language switching with SEO compliance
• Custom checkout logic for 5+ payment providers
• High retention UX on mobile and desktop

Business Value Delivered

• Revenue streams for sellers, scalable commission logic
• International reach, localized payments, higher conversion
• Centralized analytics, custom reporting
• Transaction logs, audit trails, regulatory compliance

What I Can Deliver

• End-to-end e-commerce systems, multivendor architecture
• Secure, flexible checkout, scalable multilingual support
• Responsive UI, headless APIs, PWA features
• AI/ML, logistics, ERP, and analytics integrations

Future Vision

• AI-Driven Commerce: Personalization, smart search, dynamic pricing
• Blockchain Logistics: Traceable deliveries, order confirmation
• Geo-Personalized UX: Localized experience by region/behavior
• Zero-Downtime Scaling: Auto-scaling for large campaigns
• Next-Gen Performance: Optimized cache, sub-second UX

Why Work With Me?

• Architect-level thinking, business-aligned systems
• Iterative, transparent, documentation-first
• Global-ready, payment and language expertise
• Full-stack, secure, DevOps-enabled delivery

Contact & Links

• Project Link: (on request)
• Email: (contact@heymrdigital.com)