Machine Learning Scientist Intern (TikTok-Recommendation) - 2025 Fall (PhD)

TikTok

4.5

(6)

San Jose, CA

Why you should apply for a job to TikTok:

  • 4.5/5 in overall job satisfaction
  • 4.5/5 in supportive management
  • 100% say women are treated fairly and equally to men
  • 100% would recommend this company to other women
  • 100% say the CEO supports gender diversity
  • Ratings are based on anonymous reviews by Fairygodboss members.
  • Employee well-being is supported via hybrid work, short-term counseling through our EAP and a premium subscription to Headspace.
  • We embrace diversity across all dimensions and provide employees with 9 employee resource groups globally, including our WOMEN ERG.
  • Comprehensive parental leave policy as well as fertility treatment through healthcare providers with a $20,000 lifetime maximum.
  • #7400657277185181989

    Position summary

    Here, you will utilize your knowledge in real-world scenarios while laying a strong foundation for personal and professional growth.

    Kindly note that this position is for candidates who are able to start in Fall 2025 and commit to a 12-week internship with the team.

    In this role, you'll have the opportunity to:

    • Drive the development of industry-leading recommendation systems that elevate user experience, strengthen platform safety, and empower a vibrant content ecosystem.
    • Deliver impactful, end-to-end machine learning solutions that tackle high-priority product challenges related to content understanding, LLMs, robustness, and fairness.
    • Own and optimize the full-stack ML pipeline-from algorithm design to system infrastructure-to continuously push the boundaries of recommendation performance.
    • Collaborate with cross-functional teams to craft innovative product strategies and develop intelligent solutions that fuel TikTok's growth in key global markets.

    Qualifications

    Minimum Qualifications:

    • Currently pursuing a PhD with a background in computer science, machine learning, or similar fields;
    • Good knowledge of theoretical and empirical research in addressing research problems;
    • Solid knowledge and experience with at least one popular deep learning framework (e.g., PyTorch,TensorFlow) and familiarity with deep neural network architectures.

    Preferred Qualifications:

    • Research experience in one or more of the following fields: applied machine learning, machine learning infrastructure, large-scale recommendation system, market-facing machine learning product;
    • Strong first-author publications record in top AI conferences or journals(e.g., NeurIPS, ICML, ICLR, ACL, EMNLP, NAACL etc.);
    • Proficient in C/C++, Python, and shell programming languages, and have a deep understanding of data structure and algorithm design;
    • Internship experience in an AI research organization.

    Why you should apply for a job to TikTok:

  • 4.5/5 in overall job satisfaction
  • 4.5/5 in supportive management
  • 100% say women are treated fairly and equally to men
  • 100% would recommend this company to other women
  • 100% say the CEO supports gender diversity
  • Ratings are based on anonymous reviews by Fairygodboss members.
  • Employee well-being is supported via hybrid work, short-term counseling through our EAP and a premium subscription to Headspace.
  • We embrace diversity across all dimensions and provide employees with 9 employee resource groups globally, including our WOMEN ERG.
  • Comprehensive parental leave policy as well as fertility treatment through healthcare providers with a $20,000 lifetime maximum.