TikTok Shop and the E-Commerce Revolution -- ByteDance's Second Growth Engine

TikTok Shop grew US sales by 407% in 2024 and another 108% in 2025, reaching $15.82 billion -- and globally is approaching $100 billion in GMV, making it the fifth-largest e-commerce platform in the world. This module covers ByteDance's e-commerce strategy, the content-commerce flywheel that differentiates TikTok Shop from Amazon and Shopify, the challenges of building commerce infrastructure at scale, and why this represents one of the most exciting engineering opportunities at ByteDance today. E-commerce knowledge shows interviewers you see beyond the social media surface.