Job Description

About the Team

The Global Engineering CDN team builds and operates a highly available, cost-efficient, and high-performance global multi-cloud CDN platform that powers large-scale products such as TikTok.

Our platform integrates both self-built CDN infrastructure and commercial CDN vendors across multiple regions worldwide, delivering reliable and optimized content delivery for diverse global markets. The team develops and operates core platform capabilities including domain onboarding and configuration management, content management, data analytics, and global traffic optimization. Working in a highly distributed and complex environment, we continuously evolve the platform to support both static content delivery and dynamic acceleration, while optimizing for performance, reliability, and cost efficiency.

Engineers in this team work across both software development and production operations, gaining hands-on experience with large-scale distributed systems, global traffic management, and multi-cloud infrastructure

Responsibilities

- Participate in the development and optimization of the global traffic scheduling system for the company's Multi-Cloud CDN platform.

- Contribute to the development of several modules of the scheduling system, including DNS, SDK, 302, and HTTPDNS scheduling modules.

- Build traffic management mechanisms to optimize global traffic distribution across self-built and commercial CDNs.

- Work with senior engineers to improve system performance, reliability, and cost efficiency under large-scale global traffic.

- Participate in production operations, troubleshooting, and optimization, continuously improving system stability and scheduling efficiency.