About the role#
The Business Risk Integrated Control team protects platform health and user security across TikTok, CapCut, Lemon8, and Lark. This internship focuses on building risk control algorithms and AI infrastructure to address complex security challenges. This is a full-time, on-site internship for PhD students seeking a path toward full-time conversion.
What you'll do#
- Build features and representation learning models using multi-source data to improve real-time and offline risk detection.
- Tackle security threats including bulk fake accounts, account trading, malicious farming, account takeovers, and ticket hijacking.
- Research and build the architecture for risk-control Agentic AI, focusing on task orchestration and multi-agent collaboration.
- Develop pre-trained models tailored for security scenarios and iterate using SFT, RL, and related techniques.
- Build long behavioral sequence models to improve risk identification.
- Evaluate models and conduct online experiments while monitoring stability and interpretability.
What you'll need#
- Currently pursuing a PhD in Computer Science or a related field.
- Strong engineering skills with proficiency in Python, SQL, and deep learning frameworks like PyTorch or TensorFlow.
- Experience with LLM and Agent systems, including mainstream agent tooling.
- Research experience in areas such as planning and reasoning, long task orchestration, memory modules, pre-training, RLHF, DPO, or GRPO.
- Interest in high-adversarial risk control scenarios.
- High-quality publications at top conferences are preferred.
Location & details#
- Location: San Jose, California.
- Modality: On-site.
- Compensation: $60 per hour.
- Status: Full-time, paid internship with rolling application reviews.
About TikTok
TikTok operates as an entertainment provider. The company maintains a global presence with offices in cities including Los Angeles, Singapore, New York, London, and Tokyo. It employs over 92,000 people. The organization is privately held.
How to get in at TikTok
Landing an internship at TikTok requires speed because early applicants often get seen before the pile grows. Intern Insider sends an instant alert the moment a role matching your target is published anywhere, so you can apply among the first. This gives you a better chance of your resume being reviewed while the team is still actively filling the position. You should aim to be one of the first people to submit your materials. Reaching out to the right person can also improve your chances of getting a response. Intern Insider surfaces the recruiters behind the company roles so you can contact them directly to ask about the role or a referral. This direct approach often works better than waiting for a response from a general application queue.
