后端研发工程师-抖音电商业务平台（交易中心）
Core
Design and develop the e-commerce transaction middle platform and order middle platform for ByteDance apps (Douyin, Kuaishou, Toutiao, etc.), serving users and merchants.
Role type
Senior IC backend engineer (e-commerce transaction systems)
Builds
Shopping cart, order creation, order management, and core transaction flow systems
Domain
E-commerce, high-concurrency distributed systems
Required skills
Golang, Python, PHP, Java, data structures and algorithms, distributed storage, distributed computing, message queues
Preferred skills
high-traffic high-concurrency system design, order/transaction/fulfillment/after-sales system design
Responsibilities
Design and maintain e-commerce transaction and order middle platforms; architect core transaction systems including shopping cart and order management; optimize system stability, scalability, and security for billion-level order volumes.