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Machine learning

Senior Machine Learning Engineer - TikTok Search Algorithm (Ranking, Relevance, Understanding, User Engagement)

Location:

San Jose

Employment Type:

Regular

Job Code:

JHU52

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Responsibilities

About the Team On the TikTok Search Team, you will have the opportunity to develop and apply cutting edge machine learning technologies in real-time large-scale systems, which serve billions of search requests every day. Via advanced NLP and multi-modal models, our projects impact and improve the search experience for hundreds of millions of users globally. We embrace a culture of self-direction, intellectual curiosity, openness, and problem-solving. Responsibilities • Optimize the searching quality to provide TikTok's users the best search experience • Combine your understanding of product objectives and take full advantage of modern machine learning and information retrieval techniques to improve search quality and perception • Build the core systems and algorithms development including query understanding, result ranking, query recommendation, system reliability, and etc. • Provide technical leadership to drive search strategy iteration including query understanding, recall & ranking, query recommendation, reliability, etc. • Provide team guidance, regular feedback, education, coaching and mentoring.


Qualifications

Minimum Qualifications: • Bachelor or advanced degree in computer science or a related technical discipline • Experience as tech lead or leading complex and large projects • Proficient coding skills and strong algorithm & data structure basis • Effective communication and teamwork skills. • Proficiency in the following languages but not limited to: C/C++, Python, Java or Golang Preferred Qualifications: • 5+ years of related industry experience • Experience in one or more of the following areas: NLP, Ranking, Ads, search engine, recommender system, distributed system, and machine learning


Job Information

About TikTok

TikTok is the leading destination for short-form mobile video. At TikTok, our mission is to inspire creativity and bring joy. TikTok's global headquarters are in Los Angeles and Singapore, and we also have offices in New York City, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo.

Why Join Us

Inspiring creativity is at the core of TikTok's mission. Our innovative product is built to help people authentically express themselves, discover and connect – and our global, diverse teams make that possible. Together, we create value for our communities, inspire creativity and bring joy - a mission we work towards every day.

We strive to do great things with great people. We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company. Every challenge is an opportunity to learn and innovate as one team. We're resilient and embrace challenges as they come. By constantly iterating and fostering an "Always Day 1" mindset, we achieve meaningful breakthroughs for ourselves, our company, and our users. When we create and grow together, the possibilities are limitless. Join us.

Diversity & Inclusion

TikTok is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At TikTok, our mission is to inspire creativity and bring joy. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too.

TikTok Accommodation

TikTok is committed to providing reasonable accommodations in our recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs or other reasons protected by applicable laws. If you need assistance or a reasonable accommodation, please reach out to us at https://tinyurl.com/RA-request

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@2025 TikTok