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

Job Information

[For Pay Transparency] Compensation Description (annually)

The base salary range for this position in the selected city is $184300 - $337250 annually.

Compensation may vary outside of this range depending on a number of factors, including a candidate's qualifications, skills, competencies and experience, and location. Base pay is one part of the Total Package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and restricted stock units.

Benefits may vary depending on the nature of employment and the country work location. Employees have day one access to medical, dental, and vision insurance, a 401(k) savings plan with company match, paid parental leave, short-term and long-term disability coverage, life insurance, wellbeing benefits, among others. Employees also receive 10 paid holidays per year, 10 paid sick days per year and 17 days of Paid Personal Time (prorated upon hire with increasing accruals by tenure).

The Company reserves the right to modify or change these benefits programs at any time, with or without notice.

For Los Angeles County (unincorporated) Candidates:

Qualified applicants with arrest or conviction records will be considered for employment in accordance with all federal, state, and local laws including the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Our company believes that criminal history may have a direct, adverse and negative relationship on the following job duties, potentially resulting in the withdrawal of the conditional offer of employment:

1. Interacting and occasionally having unsupervised contact with internal/external clients and/or colleagues;

2. Appropriately handling and managing confidential information including proprietary and trade secret information and access to information technology systems; and

3. Exercising sound judgment.