High-Volume Catalog Architecture with Custom Checkout & ERP Sync
Bespoke checkout pipeline with multi-currency pricing logic, warehouse inventory synchronization, and custom payment gateway integration.
Client Project (Confidential Commercial Client)
Production
4 Core Systems Delivered
An established e-commerce retailer managing over 50,000 active SKUs suffered from severe website slowdowns during peak promotional sales. Off-the-shelf plugins caused database lockups during checkout, and stock discrepancies between physical warehouses and the online store resulted in costly backorders.
Checkout timeouts caused by 14 overlapping third-party plugins executing synchronous database queries
Post-meta table bloat slowing catalog filtering and product category lookups to over 3 seconds
Desynchronization between the warehouse management system (WMS) and e-commerce stock levels
Inability to handle complex multi-tiered wholesale pricing rules within default WooCommerce tables
Infynic re-engineered the store from the database level up. We migrated the catalog to WooCommerce High-Performance Order Storage (HPOS), replaced 14 third-party plugins with a unified custom object-oriented PHP plugin suite, and introduced an asynchronous queue worker to process warehouse inventory updates without impacting web traffic.
Migrated orders and customer records out of wp_posts into dedicated, indexed relational tables.
Persistent in-memory caching for product variations, tax rules, and active pricing structures.
Lightweight single-page checkout bypassing bloated hooks to achieve sub-second order placement.
Background Action Scheduler worker ingests inventory deltas without locking front-facing catalog rows.
Decouples order records from the generic WordPress post engine, eliminating table contention during simultaneous checkouts.
Replaced 14 generic commercial plugins with clean, strictly typed PHP 8.x OOP classes, slashing execution overhead.
Processes warehouse stock updates in controlled batches, preventing server CPU spikes during inventory imports.
Detailed technical components developed, configured, and hardened for production deployment.
Custom checkout flow eliminating redundant validation calls and third-party script bloat.
Executes atomic checkout verification with custom AJAX endpoints and integrated tokenized payment processing.
High-throughput inventory synchronizer connecting the store to external enterprise warehouse software.
Polls ERP delta endpoints and executes bulk MySQL updates with automated rollbacks on validation mismatches.
Bespoke B2B pricing engine applying dynamic contract rates based on customer tax exemption status.
Calculates tier-specific discounts in memory, avoiding redundant SQL queries during catalog navigation.
Direct API driver interfacing with the merchant's dedicated commercial payment processor.
Implements secure tokenization, webhook refund handling, and strict PCI-compliant payload transmission.
Technologies selected according to domain constraints, operational throughput, and long-term maintainability.
Engineering outcomes verified by code deliverables, deployment logs, and architectural benchmarks.
Full migration to WooCommerce HPOS with dedicated relational database order tables
Replacement of 14 redundant commercial plugins with a single, maintainable custom PHP 8.x codebase
Asynchronous inventory delta synchronization running smoothly without catalog lockups
100% intellectual property transfer and operational documentation delivered to client engineering team
Scalable Multi-Tenant Architecture & Subscription Foundation
Architectural reference platform engineered for high-concurrency multi-tenant operations, automated tenant partitioning, and subscription state handling.
Real-Time Field Dispatch & Operations Management Platform
Internal operations platform unifying inbound dispatching, lead qualification queues, and automated third-party reconciliation.
Read our complete service specifications, technical deliverables, and systems architecture frameworks.
Discuss your requirements with our engineering team. We assess technical scope, system architecture, and implementation roadmaps before touching code.
