Lead machine learning engineer - multiple

Responsibilities

Drive the building of industry-leading systems, and improve user experience, content ecosystem, and platform security. Build machine learning (ML) models and implement ML-based strategies to improve system infrastructure. Lead and conduct code reviews to ensure delivery of end-to-end ML solutions. Own the full stack ML system and optimize algorithms and infrastructure to improve recommendation performance. Build new pipelines for ML model training or iteration. Partner with cross functional teams to design product strategies and features and build solutions to support platform's growth. Mentor junior Machine Learning Engineers and interns. Qualifications Must have a Master's degree or foreign equivalent degree in Computer Science, Engineering (any), Information Technology, Data Science, Analytics (any), Mathematics, Finance, or a related quantitative field, and 2 years of related work experience; OR a Bachelor's degree or foreign equivalent degree in Computer Science, Engineering (any), Information Technology, Data Science, Analytics (any), Mathematics, Finance, or a related quantitative field, and 5 years of post-bachelor's, progressive related work experience. Of the required experience, must have 2 years of experience in each of the following: Optimizing, training, and deploying machine learning and deep learning models using PyTorch or TensorFlow; Coding using Python or C++; Using Python or R to analyze, process, and cleanse large quantities of gathered data; Designing customized data visualization dashboards based on user requirements to enable consolidated results drawn from data to support business decision making; Designing, developing, testing, and executing rules and algorithms to analyze large quantities of data and identifying stakeholder defined patterns and anomalies to detect fraud and mitigate risks; and Consolidating data insights into actionable recommendations and presenting findings to stakeholders to support business decisions. Travel Requirement: Domestic and international travel required up to 5%. Employer: TikTok USDS Joint Venture LLC (Please note that on December 19, 2025, TikTok U.S. Data Security Inc. was issued a certificate of conversion from a corporation to a limited liability company and changed its name to TikTok USDS Joint Venture LLC.) Type: Full time, 40 hours/week Location: Bellevue, WA Salary Range: $198360 - $416100 per year To apply, and for information on benefits offered, visit: https://lifeattiktok.com/ and type Job ID A103944A in search bar. Contact lpresumes@tiktokusds.com if you have difficulty applying through our website.