Wholesale & Distribution

Build me an in-house warehouse management system (WMS) for a wholesale and distribution company that manages items by SKU and barcode across multiple warehouses and storage locations (aisles and shelves), with real-time tracking of balances, inbound/outbound movements, transfers between locations, and periodic stocktaking. Give every user a precise role and permission set (warehouse manager, storekeeper, stocktake auditor) with secure login and an audit log for every movement showing who did what and when. Design the architecture to handle millions of inventory movements: a PostgreSQL database indexed on SKU, location, and date, caching for frequently-read balances, and task queues for heavy stocktaking operations and recalculating weighted-average cost so the interface never slows down. Apply global standards: data encryption, protection against injection and request-forgery attacks, rate limiting, daily backups, and an Arabic RTL-first interface with English support and full accessibility. Add an observability dashboard, analytics, and error logs, plus automatic alerts when an item drops below its reorder point, with a suggested purchase quantity. Deliver it production-ready with a professional user experience, tests for critical units, and short operational documentation.

Build me a B2B ordering portal facing wholesale merchants, where every merchant logs into their own account to view the catalog at their own contracted prices, along with their balance, credit limit, and past invoices, and can send orders any time that enter my system automatically. Add fast catalog search and filtering, an order cart, one-tap reorder of the last order, and linking the order to real-time stock availability. Make roles and permissions clear (merchant, sales rep acting on the merchant's behalf, accounts officer), with secure login via phone number and OTP. Design the architecture to serve thousands of concurrent merchants: an indexed database, caching for catalog pages and prices, a CDN for product images, and queues for processing large batches of orders at once. Apply security (encryption, rate limiting, protection against common attacks, backups), performance and speed, Arabic RTL-first with English support and accessibility, and monitoring and analytics on ordering behavior and best-selling items. Connect deferred invoice payment plus mada, Apple Pay, and Moyasar for those who want to prepay, and send order confirmation via WhatsApp. Deliver it production-ready with a professional experience, tests, and short documentation.

Build me an automation engine for a wholesale company that handles the end-to-end e-invoicing and collection cycle. When any order is approved, it generates a ZATCA/Fatoora-compliant invoice through an accredited provider connected via an API key stored in the secrets vault, then sends it to the customer automatically via WhatsApp and email. Add scheduled collection rules: a reminder before the due date, a reminder on the due date, and escalation after a delay, with automatic suspension of new goods delivery to any merchant who exceeds their credit limit. Make roles and permissions strict (accountant, credit manager, supervisor), with an audit log for every notification and transaction. Design the architecture to send thousands of messages and invoices daily through task queues and reliable scheduling with retry on failure, and a database indexed on due dates and invoice status. Apply security (key encryption, rate limiting, backups, protection against attacks), Arabic RTL-first with English support, and monitoring and analytics (observability) on collection rates, delay rates, and rejected invoices, with clear logs. Deliver it production-ready with tests and short documentation.

Build me a mobile app (Expo) for field sales reps in the market that works efficiently even with a poor connection (offline-first): the rep selects the merchant and views their special pricing, balance, and credit limit, records the order instantly, records cash collection and sends the customer a receipt, and logs merchant visits with their location on a map and a daily route. Make data store locally on the device during network outages, then sync automatically and safely once the connection returns, without duplication or loss. Apply roles and permissions (rep, sales supervisor) and secure login with a device token, and an audit log for every collection transaction. Design the backend to scale to thousands of concurrent reps: an indexed API, caching, and queues for processing heavy sync, with reliable conflict resolution for sync. Apply security (data encryption on-device and in transit, rate limiting, backups), Arabic RTL-first with English support and accessibility, maps for tracking visits, and monitoring and analytics on each rep's performance and collections. Deliver it production-ready with a professional experience, tests, and short documentation.

Design and build me a unified wholesale distribution platform that brings together inventory, orders, pricing, collections, and reps in a single system designed from the ground up to scale to millions of users and tens of millions of orders per year. Focus on the architecture: a carefully indexed PostgreSQL database, partitioned/sharded at the branch and region level as needed, a caching layer (Redis) for frequently-read balances and prices, task queues for every heavy operation (invoicing, sync, reports, notifications), a CDN for assets, and a stateless design that allows horizontal scaling and load balancing. Apply hierarchical, multi-branch roles and permissions (RBAC) with secure login and two-factor authentication for sensitive roles, plus a comprehensive audit log. Make global standards foundational: encryption at rest and in transit, protection against common attacks, strict rate limiting, backups and disaster recovery, performance under high load, Arabic RTL-first with English and accessibility, and comprehensive monitoring and analytics (metrics, tracing, and alerts) with centralized logs. Connect ZATCA e-invoicing, mada, Apple Pay, and WhatsApp. Deliver it production-ready with load tests, unit tests, and short architectural documentation.