Senior ML Engineer – Risk & Integrity Platform

TikTok Inc.; San Jose (CA); On-site; USD 187,000 - 360,000; Full time

Job summary

TikTok USDS Joint Venture LLC is seeking a Senior Platform Engineer to lead the architecture and governance of risk across the US TikTok ecosystem, including associated platforms. You will build high-precision risk models using diverse data types and drive intelligent decision-making with Generative AI and multimodal tech.

You will work in a fast-paced, global environment, collaborating across teams to ensure secure, scalable, and compliant risk systems while advancing trust and safety

Qualifications

• Bachelor's degree or higher in CS, Math, Statistics, or related field.
• Strong ML foundation with Transformer and GNN experience.
• Proficient in Python, C++, or Go; familiar with Spark or Flink and PyTorch.
• Excellent communication in a global, cross-cultural environment.

Responsibilities

• Lead the algorithmic architecture and governance for TikTok US across key domains, including account integrity, incentive abuse, content safety, and financial risk, ensuring a fair and secure ecosystem for a billion-user community.
• Build high-precision risk representation models leveraging video, live streams, audio, behavior sequences, and social graphs to enable cross-scenario risk perception.
• Research and counter global adversarial threats; architect self-evolving defense systems maintaining robustness against rapid tactic shifts and data drift.
• Drive the integration of Generative AI and Multimodal technologies into the risk lifecycle; leverage LLMs and deep learning models for adjudication and scalable enforcement.

Skills

Machine Learning

Transformer models

GNN architectures

Python

Go/C++

Distributed computing

Cross-cultural communication

Education

Bachelor's degree or higher in Computer Science, Mathematics, Statistics, or a related field

Tools

PyTorch

Spark

Flink

Job description

TikTok USDS Joint Venture LLC is seeking a Senior Platform Engineer to lead the architecture and governance of risk across the US TikTok ecosystem, including associated platforms. You will build high-precision risk models using diverse data types and drive intelligent decision-making with Generative AI and multimodal tech.

You will work in a fast-paced, global environment, collaborating across teams to ensure secure, scalable, and compliant risk systems while advancing trust and safety