I built my own shopping cart and an omni-channel e-commerce order management system that integrates with Australia Post, Amazon, Google, eBay, Neto, and Shopify

I built my own shopping cart and an omni-channel e-commerce order management system that integrates with Australia Post, Amazon, Google, eBay, Neto, and Shopify. The net gain has been extreme automation. My shipping team's output has doubled. I've learned that whilst we talk about premature optimisation, there is also lagging optimisation too!