Backend Software Engineer (IM Cloud) - TikTok - Singapore

We are the TikTok IMCloud team, the core infrastructure group responsible for TikTok's entire global Instant Messaging (IM) system. Our mission is to build and operate the foundational backend services that enable billions of users to connect reliably, securely, and efficiently.We are responsible for the end-to-end infrastructure of the TT IM system, including core messaging path design, global multi-region architecture, large-scale system stability, and continuous performance and cost optimization. Responsibilities:
1. Design, build, and maintain the high-availability, low-latency, and large-scale infrastructure for TikTok's global IM system.
2. Lead the design, optimization, and implementation of the core messaging delivery path to enhance system performance and efficiency.
3. Develop and refine the global multi-region architecture to ensure a seamless, reliable experience for users worldwide.
4. Drive system-wide stability and reliability engineering, including fault tol...