Responsibilities

TikTok is the leading destination for short-form mobile video. Our mission is to inspire creativity and bring joy. TikTok has global offices including Los Angeles, New York, London, Paris, Berlin, Dubai, Singapore, Jakarta, Seoul and Tokyo.

Why Join Us
Creation is the core of TikTok's purpose. Our platform is built to help imaginations thrive. This is doubly true of the teams that make TikTok possible.
Together, we inspire creativity and bring joy - a mission we all believe in and aim towards achieving every day.
To us, every challenge, no matter how difficult, is an opportunity; to learn, to innovate, and to grow as one team. Status quo? Never. Courage? Always.
At TikTok, we create together and grow together. That's how we drive impact - for ourselves, our company, and the communities we serve.
Join us.

The eCommerce industry has seen tremendous growth in recent years and has become a hotly contested space amongst leading Internet companies. TikTok Shop re-imagines global eCommerce with rich content and endless joy.
The mission of Shop Ads team is to empower commerce merchants of all sizes to grow their business efficiently within TikTok's closed-loop ecosystems. Shop Ads, our feature ad solution, enables all TikTok Shop Sellers to promote their products in TikTok efficiently.
We are looking for strong Backend Engineers who are excited to grow their business understanding, build highly scalable and reliable software, and partner across disciplines with global teams in pursuit of excellence.
What You'll Do
Build highly scalable machine learning systems/infra to improve ads ranking results.
Explore, develop and experiment with new features to improve model accuracy.
Understand ads platform objectives and take full advantage of state-of-the-art backend development techniques to improve ad quality, relevancy, and select the best shop ad candidates delivered to end-users.
Develop robust core systems and algorithms, including ads ranking system, model serving system, mixed ranking system etc.

Qualifications

Minimum Qualifications:
BS/MS degree in Computer Science or similar fields, with related industry experience.
Solid Computer Science fundamentals (algorithms, data structures, software design).
Solid programming skills, proficient in Python/Golang/Java/C/C++.
Knowledge of and hands-on experience with big data processing and parallel computing frameworks, such as Hadoop and Spark.
Business acumen and excellent problem-solving, project management, and analytical skills.
Team-player with strong communication skills who can also work independently.

Preferred Qualifications:
Experience in building high-load distributed systems or data processing pipelines.
Experience in building and troubleshooting machine learning workloads on distributed systems is a plus.
Experience in developing modern ads ranking/retrieval/targeting systems and recommender systems

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 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://shorturl.at/cdpT2