Senior Data Scientist, Data Foundation & System (Multiple Positions)

San Jose, California, US Until 8/22/2026 2+ years exp H-1B sponsor history First posted June 10, 2026 Last posted June 10, 2026
Job description

Description

About TikTok
TikTok is the leading destination for short-form mobile video. At TikTok, our mission is to inspire creativity and bring joy.
TikTok'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.

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.

About the Team
Our team plays a crucial role in ensuring the company’s success. We seek people who are willing to learn and put in the effort to solve problems. Our challenges are not your regular day-to-day problems - you’ll be part of a team that’s developing new solutions to new challenges. It’s working fast, at scale, and we’re making a difference. We are looking for talents to join us on this exciting journey!

Responsibilities
Define core business metrics and establish the company’s data metric system, ensuring consistent definitions, data sources, and update schedules.
Develop and manage data monitoring tools, enabling timely detection and resolution of anomalies and business issues.
Collaborate with data partners, R&D, Quality Assurance, and Business Line Data Scientists to improve and maintain metric systems and data quality processes.
Optimize data science work models and tooling to drive team efficiency and enhance collaboration with cross-functional teams.
Apply quantitative analysis, experimentation, data mining, and present data to develop strategies for improving the data metric system.
Mentor interns and junior data scientists.

Requirements

Qualifications
Must have a Master’s degree or foreign equivalent degree in Computer Science, Engineering (any), Data Science, Quantitative Management, Business Analytics, Statistics, Mathematics, or a related field, and 2 years of related work experience; OR a Bachelor’s degree or foreign equivalent degree in Computer Science, Engineering (any), Data Science, Quantitative Management, Business Analytics, Statistics, Mathematics, or a related field, and 5 years of post-bachelor’s, progressive related work experience.

Of the required experience, must have 1 year of experience in each of the following:
Mining, preparing, cleansing, and analyzing structured data using statistical computing languages SQL, Python, or R for metrics creation, root cause analysis, and model preprocessing;
Developing graphical and visual representations of data using Excel or Tableau;
Designing and modeling data warehouse to support data analytics, reporting, and data applications; and
Using SQL and/or Spark to query, explore, and manipulate data from Apache Hive and relational database management systems including MySQL, Microsoft SQL Server, or PostgreSQL.

Travel Requirement: Domestic and international travel required up to 5%.

Type: Full time, 40 hours/week
Location: San Jose, CA
Salary Range: $179200 - $292600 per year

To Apply, click the apply button below. Contact [email protected] if you have difficulty submitting resume through the website.

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.

TikTok 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/RA-request

#IND-DNI

About this role

Summary

Develops data metrics, models, and tools; collaborates; mentors; improves data quality and systems.

Job title

Senior Data Scientist, Data Foundation & System

Experience level

2+ years or 5+ years

Minimum experience

2+ years exp

Industry

software

Location requirements

San Jose, CA; remote not specified

Salary

$179k–$293k

Visa sponsorship

H-1B sponsor history

Management role

No

Skills & keywords

Required skills

SQLPythonRExcelTableaudata warehouseSparkMySQLPostgreSQLrelational databases

Preferred skills

None specified

Specializations

metrics developmentdata analysisdata modelingSQLPython
Locations

Structured locations inferred from the posting.

San Jose, CA, USA

On-site City