Senior Backend Software Engineer - AI - Asset Services

Responsibilities

The Creation team is an international R&D group tasked with building creative capabilities for Tik Tok. We're dedicated to productizing AI and multimedia technologies to create world‑class creation experiences for Tik Tok users. Our tech stack includes front‑end, back‑end, mobile, and desktop development, as well as multimedia technologies like audio/video processing and AR effects, in addition to visual and graphic algorithms.

Our team spans major cities in China (Beijing, Shanghai, Hangzhou, Shenzhen, and Guangzhou), Singapore, as well as the United States (San Jose, Seattle, and Los Angeles). Join us to craft the best creative tools with the most cutting‑edge AI and multimedia technologies!

The Asset Service has managed almost 100 million assets for multiple scenarios (such as Tik Tok effect and template). We manage the whole lifecycle of multiple assets, including creation, operations to consumption. Our distribution service QPS has reached 1 million, and we have provided the service for multi‑regions in the global world, and distribute the material to the UGC creator. We will keep it more efficient, stable and compliant to provide rich materials for the UGC creator to help them create more interesting content.

Besides, we're also working on AIGC features in order to improve user experience and creator efficiency. The team is based in the US and CN, and our mission is to develop Loki into an efficient and reliable asset platform that, like the Norse god Loki, transforms assets into dynamic formats, to ensure magically easy asset creation, management, and consumption across multiple products.

As a Backend Engineer in our team, you'll play a key role in shaping this dynamic and ever‑evolving platform, significantly contributing to Tik Tok's continued global impact.

• Work closely with cross functional teams like product managers, designers, and Frontend engineers to deliver state of the art user experience in the above products mentioned;
• Build world‑class products end‑to‑end, which combine usability, accessibility, elegance, performance, and maintainability;
• Guarantee the creation experience of 100 million‑level UGC users and 10 million‑level designers;
• Construct an AI Native service ecosystem and development workflow;
• Build an Agent system serving intelligent creation.

• Experienced in building backend services for large‑scale consumer‑facing applications;
• Deep understanding of computer architectures, data structures, and algorithms;
• Have good team communication and collaboration skills;
• Understand modern distributed system architecture;
• In‑depth AI application experience and understanding of AI Coding paradigms.

• BA/BS Degree in Computer Science or related major.
• Industry experience in a software development environment.
• Experience in building AI Agents and understanding the construction principles of knowledge bases/Skill systems/memory.

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.

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 $156000 - $387600 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 bonuses/incentives, and restricted stock units.

Benefits may vary depending…