Senior Data Scientist, E-commerce - USDS

Responsibilities

About the team:
The E-commerce Risk Control and Security team is dedicated to protect Tik Tok Shop from fraudulent activities and user abuses, ensuring a trustworthy and user-friendly marketplace for buyers, sellers, and creators. As a global team, we are developing and managing foundational platforms including the risk decision engine, enforcement framework, and model & graph platforms. These systems are tackling some of the highest throughput challenges across Global E-commerce.

• Be responsible for end-to-end data analysis projects in the e-commerce security field, including collecting, cleaning, and transforming e-commerce security-related data (such as transaction logs, user behavior data, abnormal order data, and fraud records), perceive and identify security risks from it, promote the implementation of data-driven e-commerce security solutions, and have the ability to implement and execute solutions in the production environment.
• Monitor and analyze e-commerce security data trends, including information leakage, malicious crawling of commodity/price data, etc.; identify data anomalies, potential security risks and optimization directions, improve the security of the e-commerce platform, and protect the rights and interests of users and merchants.
• Be responsible for data-based diagnosis of e-commerce security issues, use statistical methods and data mining technologies to conduct root cause analysis on e-commerce security pain points, and provide implementable security solutions to support e-commerce security decision-making.
• Collaborate deeply with e-commerce business teams, product teams, security teams and engineering teams, understand e-commerce security needs, convert them into e-commerce security data analysis tasks, and design and deliver scalable data analysis solutions to solve complex e-commerce security challenges.

Minimum Qualifications:

• Bachelor’s degree or above in Computer Science, Data Science, Information Security, Business Analytics, or a related discipline.
• 5+ years of experience in data analytics, with proficiency in SQL, Python, and relevant analytical tools/languages, be able to detect cyber threats and risks by data-driven approaches.
• Excellent capabilities to investigate, identify, analyze hidden issues from e-commerce business data and security logs.
• Strong business judgment and ability to work independently in a fast-paced, ambiguous environment, strong cross-team communication skills to achieve results.

Preferred Qualifications:

• Experienced in data science and e-commerce security risk mitigation, such as data security, traffic security, or anti-bot.
• Experienced in e-commerce and retail related business fields, familiar with e-commerce security risks and data analysis scenarios.
• Demonstrated communication skills to bridge business and technical teams, able to efficiently promote projects from risk detection to solution implementation; good stress resistance and stability.

Tik Tok USDS Joint Venture LLC is dedicated to the safety and security of millions of Americans who create, discover, and connect with what they love on the apps we operate. The Joint Venture has been established in compliance with the Executive Order signed by President Trump on September 25, 2025. Our foundation is a comprehensive data privacy and cybersecurity program we operate under defined safeguards to protect national security and secure U.S. user data, apps and the algorithm.

We safeguard the U.S. content ecosystem, holding decision-making authority for trust and safety policies and moderation. USDS Joint Venture helps ensure Americans can continue to express their creativity, discover new hobbies and interests, and build thriving communities and businesses on a global scale.

On-site presence across teams allows the company to operate with greater speed, alignment, and agility — especially in areas like real-time decision-making, team development, and integrated execution. As such, the company is shifting from a hybrid work model to a fully in-person schedule up to 5 days a week.

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…