Senior Software Development Engineer, Streaming Media

Responsibilities

About the Team:
The Media Network team is building an industry-leading real-time media distributed system that plays a critical role in Tik Tok’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 Tik Tok users.

• 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.

• 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.

• Experience with CDN, multimedia systems, live streaming, or WebRTC.
• Experience building or operating large-scale distributed systems.
• Experience applying AI/ML techniques to improve efficiency or performance in streaming media systems.

Tik Tok is the leading destination for short-form mobile video. At Tik Tok, our mission is to inspire creativity and bring joy. Tik Tok's global headquarters are in Los Angeles and Singapore, and we also have offices in New York City, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo.

Inspiring creativity is at the core of Tik Tok's mission. Our innovative product is built to help people authentically express themselves, discover and connect – and our global, diverse teams make that possible. Together, we create value for our communities, inspire creativity and bring joy - a mission we work towards every day. We strive to do great things with great people.

We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company. Every challenge is an opportunity to learn and innovate as one team. We're resilient and embrace challenges as they come. By constantly iterating and fostering an "Always Day 1" mindset, we achieve meaningful breakthroughs for ourselves, our company, and our users. When we create and grow together, the possibilities are limitless.

Join us.

Tik Tok is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At Tik Tok, our mission is to inspire creativity and bring joy. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach.

We are passionate about this and hope you are too.

Tik Tok is committed to providing reasonable accommodations in our recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs or other reasons protected by applicable laws. If you need assistance or a reasonable accommodation, please reach out to us at

【For Pay Transparency】Compensation Description (Annually)

The base salary range for this position in the selected city is $212800 - $450000 annually.

Compensation may vary outside of this range depending on a number of factors, including a candidate’s qualifications, skills, competencies and experience, and location. Base pay is one part of the Total Package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary…