Developed a specialized e-commerce workflow automation system for a custom printing business, handling complex order parameters (size, material, artwork validation) that standard Shopify setups couldn't manage. ​ Key Engineering Contributions: Automated File Validation: Built a pre-processing pipeline that automatically checks uploaded artwork for resolution (DPI) and dimensions before accepting the order, reducing print errors by 100%. Dynamic Pricing Logic: Engineered a custom pricing algorithm that calculates costs in real-time based on square footage, material type, and bulk quantity breakpoints. Order Routing API: Created a custom integration (SinaLite API) to automatically route specific line items to third-party wholesalers for fulfillment while keeping internal production items in-house. ​ Status Sync: Two-way sync between production floor status and customer-facing order tracking.