Performance Optimization Architect – TikTok LIVE

About the role

The core team behind TikTok LIVE is responsible for delivering a seamless live‑streaming experience to billions of users worldwide. As a Performance Optimization Architect you will own the end‑to‑end performance journey, from content distribution to viewer consumption, and drive high‑impact technical projects at global scale.

Key responsibilities

• Systematically optimize live‑streaming performance and proactively discover issues across distribution quality, room entry conversion, viewing experience, and go‑live stability.
• Establish and continuously improve an end‑to‑end performance metrics framework and diagnostic system, creating a closed‑loop governance model for measurement, analysis, optimization and validation.
• Lead cross‑functional technical initiatives, collaborating with client, server, algorithm, audio/video, CDN and data teams to define roadmaps, align resources and deliver measurable business impact.

Required profile

• Deep technical expertise and architectural perspective with hands‑on experience in at least one domain such as client, backend, networking or audio/video.
• Strong data‑analysis and structured‑thinking abilities to identify root causes from large‑scale data and translate insights into actionable plans.
• Proven systematic problem‑solving skills and ability to execute complex, cross‑functional projects with strong ownership and coordination.

Required skills

• Audio and video technologies (capture, encoding/decoding, processing, rendering).
• Networking and transport protocols (QUIC, WebRTC, HTTP/3).
• CDN architecture and intelligent scheduling strategies.
• Client performance optimization (power consumption, memory usage, smoothness, stability).