Data Scientist, Platform Responsibility - USDS

TikTok USDS Joint Venture; San Jose (CA); On-site; USD 144,000 - 329,334; Full time

Benefits offered by this job

Medical, dental, vision

401(k) matching

Paid parental leave

Disability insurance

Life insurance

Wellbeing benefits

Paid holidays

Paid sick days

Paid Personal Time

Job summary

TikTok USDS Joint Venture LLC is seeking a data scientist to build metrics systems, detection pipelines, and analytics for platform safety and user privacy. You will partner with product, operations, R&D and algorithms teams to turn insights into actionable improvements.

The role emphasizes rigorous statistics, A/B testing, and the use of AI/LLM techniques to enhance security policies and incident response across content safety, account risk, and moderation platforms.

Qualifications

• Master's degree or higher in statistics, data science, CS or related field.
• Strong SQL, Python skills and data visualization capability.
• Experience with causal inference and A/B testing.

Responsibilities

• Design, build, and maintain core metrics systems and detection data pipelines for platform safety and risk.
• Apply statistical methods (A/B testing, causal inference, regression) to evaluate policies.
• Develop quantitative analysis systems and translate insights into actionable improvements.
• Summarize data methodologies, create reusable analysis tools, and productize data services.
• Leverage AI & LLM techniques to improve operational workflows.

Skills

SQL

Python

Data visualization

Statistics

A/B testing

Communication

Cross-functional collaboration

Education

Master's degree or above in statistics / data science / computer science / operations research

Tools

Jupyter

BigQuery

Airflow

Job description

Responsibilities
About the team
Join our team and leverage the power of data science to directly safeguard content, users, and privacy on TikTok. You will provide critical data-driven insights for platform responsibility and safety initiatives, including video content safety, live content safety, account security, privacy compliance, and moderation platforms, ultimately enhancing the safety experience for millions of users worldwide.

Main Responsibilities
- Design, build, and maintain core metrics systems and detection engineering data pipelines related to platform content safety and risk, including but not limited to content violation, user report, and account risk identification. Develop comprehensive monitoring and detection systems to quickly identify and analyze security incidents, providing data support for risk alerts and policy adjustments.
- Apply rigorous statistical methods, including A/B testing, causal inference, regression analysis, and more, to evaluate the effectiveness of security policies. You will deeply analyze experiment results, provide quantitative evidence for business decisions, and continuously optimize experiment design to improve evaluation efficiency.
- Develop quantitative analysis systems for specific business challenges and leverage data mining techniques to identify potential optimization opportunities. You will work closely with product, operations, R&D, and algorithm teams to translate analytical insights into actionable improvements and drive their implementation, ultimately improving platform safety.
- Continuously explore and summarize data analysis methodologies, create reusable analysis frameworks and tools to improve the overall analytical capabilities of the team. Participate in the design and iteration of data products, productizing data analysis capabilities to provide business teams with more efficient and convenient data services.
- Leverage AI & LLM techniques to increase efficiency and quality of the operational workflows.

Qualifications
Minimum Qualifications:
- 2+ years of data science experience, with experience in Internet/content platform safety business. Master\'s degree or above in statistics, data science, computer science, operational research, mathematics, or a related field.
- Proficient in SQL, skilled in using data analysis tools such as Python, and possesses excellent visualization skills. Familiar with common machine learning algorithm principles and understands methods such as causal inference and A/B testing.
- Possesses excellent logical thinking, problem analysis and solving abilities, as well as good communication, expression, and cross-team collaboration & project management skills.

Preferred Qualifications:
- Experience in content security, integrity, or risk management is preferred.

About USDS
TikTok 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.


Why Join Us
Inspiring creativity is at the core of TikTok\'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.

Diversity & Inclusion
TikTok 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 TikTok, 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.


USDS Reasonable Accommodation
USDS 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 https://tinyurl.com/USDS-RA


Job Information
【For Pay Transparency】Compensation Description (Annually)
The base salary range for this position in the selected city is $144000 - $329334 annually.
Compensation may vary outside of this range depending on a number of factors, including a candidate\u2019s 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 on the nature of employment and the country work location. Employees have 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, among others. Employees also receive 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 these benefits programs at any time, with or without notice.
For Los Angeles County (unincorporated) Candidates:
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. Our company believes that criminal history may have a direct, adverse and negative relationship on the following job duties, potentially resulting in the withdrawal of the conditional offer of employment:
1. Interacting and occasionally having unsupervised contact with internal/external clients and/or colleagues;
2. Appropriately handling and managing confidential information including proprietary and trade secret information and access to information technology systems; and
3. Exercising sound judgment.