Machine Learning Scientist Graduate (TikTok Trust and Safety) - 2027 Start (PhD)
- Locations
- Seattle, United States of America · San Jose, United States of America
- Salary range
- USD $153,900 – $300,960 base
- Workplace
- In office
- Level
- Individual contributor
- Job family
- Data & Analytics
- Posted
- Recently
The T&S Network estimates this role to be P2, Professional. The typical base salary for that level in Safety Engineering & Data Science is $130k to $200k at an employer this size. Key skills at this level: builds and ships detection or enforcement systems in production, evaluates a classifier on the metric that matches the harm, not on accuracy, and works with labeled data of uneven and adversarial quality.
Why this level
Estimated from the posting rather than stated by the employer: an early-career or graduate seat · posts $154k to $301k base at a company over 5,000 · the title reads as P2.
The role, in T&S terms
Written by the T&S Network from TikTok's posting.
Builds computer vision, NLP and multimodal models that detect content and behaviors violating community guidelines and related regulations on TikTok. The algorithm team works on content understanding models that improve recognition of violating content, along with the distributed training framework behind them.
What you'd do
- Develop content understanding models to improve recognition of violating content on the platform.
- Optimize the distributed model training framework on an ongoing basis.
- Work with product teams to define business objectives and shape trust and safety strategy.
- Work with engineering teams to deploy models, design online model workflows, and build serving pipelines at scale.
- Work with the data science team to identify key challenges and propose data-driven strategies.
- Build classifiers and learning systems across text, images and combined media, including reinforcement learning and large language models, for content understanding.
What it asks for
- PhD in computer science or a related discipline, completed or recently completed.
- Strong coding skills.
- Curiosity about new technologies and entrepreneurship.
- Solid skills in communicating and working within a team.
Our best summary of the posting, and it can be wrong. The employer's posting is what counts: read it in full on TikTok before you apply. If we got something wrong, report this listing.
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Still listed 14 hours ago
About TikTok

The employer
About TikTok
Social platforms · Media and streaming · Culver City, CA · 50,001 to 100,000 people · Founded 2016
Short-form video platform, run by ByteDance outside the US and by a joint venture of Oracle, Silver Lake and MGX inside it since 2026.
Moderation, reported
TikTok filed 37.7M moderation decisions with the European Commission for May 2026.
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