Software Development Engineer, Streaming Media

About TikTok

The Media Network team is building an industry-leading real-time media distributed system that plays a critical role in TikTok’s live streaming and RTC scenarios. Serving billions of users worldwide, our network is among the largest real-time media networks globally. Join the Media Network team to work on large-scale distributed systems and help deliver an exceptional real-time media experience to TikTok users.

Responsibilities

• Design and implement high-performance, latency-sensitive media servers.
• Optimize network efficiency for media delivery, balancing cost and quality.
• Design, implement, and optimize media protocols, while staying current with industry trends.
• Leverage AI technologies to enhance streaming media scenarios and improve the flexibility and performance of the Media Network.
• Design and build resilient, decoupled systems to minimize single points of failure and improve overall reliability.

Requirements

• Bachelor’s degree in Computer Science, Engineering, or a related field.
• Hands-on experience with streaming transport protocols such as RTP/RTCP, RTMP, DASH, and CMAF.
• Familiarity with audio and video codec standards, including OPUS, AAC, and H.264.
• Solid understanding of networking fundamentals, including TCP/IP, NAT, IPv4/IPv6, routing protocols, and packet processing (e.g., iptables, deep packet inspection).
• Proficiency in at least one programming language: C, C++, Java, Python, Rust, or Go.

Preferred

• Experience with CDN, multimedia systems, live streaming, or WebRTC.
• Experience building or operating large-scale distributed systems.