Senior Data Scientist - E-Commerce Anti-Fraud

About the Team

E-commerce's Governance and Experience is a global team responsible for ensuring our Tik Tok Shop marketplace is safe and trustworthy for users, sellers, and creators. We value user satisfaction and work on policies, rules, and systems to ensure quality.

The USDS Risk Control and Security team within GNE focuses on fighting various forms of fraud and abuse within the Tik Tok Shop ecosystem via insight generation, scaled enforcement, automation, and prevention.

The Risk Control & Security Anti-Fraud Data Scientist role focuses on mitigating fraud, abuse, policy violations and business risks for Tik Tok's e-commerce platform, Tik Tok Shop. This role is critical in protecting our buyer, merchant, and creator communities, ensuring compliance with internal policies and industry regulations while balancing customer experience and business growth.

• Conduct complex, exploratory data analysis to uncover emerging fraud vectors, behavioral anomalies, and latent platform vulnerabilities.
• Define risk metrics, construct self-serve dashboards, and build real-time automated alerting/circuit breakers for rapid threat response and executive visibility.
• Formulate, validate, configure, and deploy risk strategies and rules to mitigate fraud with minimal false positives. Drive the end-to-end development, deployment, and continuous monitoring of real-time machine learning models for risk scoring and fraud detection.
• Leverage graph analytics, clustering, and entity-resolution techniques to uncover coordinated fraud rings and collusive attacks.
• Design and evaluate rigorous A/B experiments to measure the trade-offs between security, financial loss, and legitimate user friction.
• Leverage modern AI tools and LLMs to automate risk workflows, optimize analytics, and streamline detection capabilities.
• Partner on robust data pipeline infrastructure (including USDS operations) to ensure strict adherence to cross-border data privacy and compliance standards.

• Bachelor's degree in mathematics, statistics, computer science, data analytics, or engineering
• Proficient in SQL and Python/R
• 3+ years of relevant experience in one of the following areas:
  Anti-fraud, Risk Management, Trust & Safety, Data Analytics, or Data Science in e-commerce or the general tech industry

• Familiarity with AI-enabled workflows and hands-on experience building or implementing AI-powered tools, automations, or solutions.
• Excellent communication skills with the ability to work independently with global teams
• Proactive, data-driven, results-oriented, and a high desire to learn and contribute
• Ability to navigate ambiguity and show good judgement

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…