Senior Backend Software Engineer - AI - Asset Services

Team Overview

The Creation team is an international R&D group tasked with building creative capabilities for TikTok. We are dedicated to productizing AI and multimedia technologies to create world‑class creation experiences for TikTok users. Our tech stack includes front‑end, back‑end, mobile, and desktop development, as well as multimedia technologies such as audio/video processing and AR effects, in addition to visual and graphic algorithms. The team spans major cities in China (Beijing, Shanghai, Hangzhou, Shenzhen, Guangzhou), Singapore, and the United States (San Jose, Seattle, Los Angeles). We also manage the Asset Service, which handles almost 100 million assets across multiple scenarios, and deliver distribution services with a QPS that has reached 1 million for multi‑region users. Our goal is to build Loki, an efficient and reliable asset platform that transforms assets into dynamic formats for easy creation, management, and consumption across products. The team is based in the US and CN, and we are also working on AIGC features to improve user experience and creator efficiency.

Responsibilities

• Work closely with cross‑functional teams such as product managers, designers, and frontend engineers to deliver a state‑of‑the‑art user experience in the mentioned products.
• Build world‑class products end‑to‑end, combining usability, accessibility, elegance, performance, and maintainability.
• Guarantee the creation experience for 100 million‑level UGC users and 10 million‑level designers.
• Construct an AI Native service ecosystem and development workflow.
• Build an agent system that serves intelligent creation.

Qualifications

Minimum Qualifications

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

Preferred Qualifications

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

Job Information

The base salary range for this position in the selected city is $156,000–$387,600 annually.

Compensation may vary outside of this range depending on factors such as qualifications, skills, competencies, and experience. The base pay is one part of the total package, which may also include discretionary bonuses/incentives and restricted stock units.

Benefits

Employees receive day‑one access to medical, dental, and vision insurance; a 401(k) savings plan with company match; paid parental leave; short‑term and long‑term disability coverage; life insurance; wellbeing benefits; 10 paid holidays per year; 10 paid sick days per year; and 17 days of paid personal time (prorated upon hire with increasing accruals by tenure). The company reserves the right to modify or change benefit programs at any time, with or without notice.

Fair Chance / Criminal Background

1. Qualified applicants with arrest or conviction records will be considered for employment in accordance with all federal, state, and local laws, including the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.
2. Criminal history may be directly adverse or negative to the following job duties, potentially leading to a withdrawal of the conditional offer of employment: (1) interacting and occasionally having unsupervised contact with internal or external clients and/or colleagues; (2) appropriately handling and managing confidential information including proprietary and trade secret information and access to IT systems; and (3) exercising sound judgment.