Responsibilities

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 its offices include New York, London, Dublin, Paris, Berlin, Dubai, 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.

About the Team
The goal of the TikTok Frontend Infrastructure team is to build sustainable, and reusable infrastructure, so that each product team can develop, test, and deploy their features more efficiently and effectively. We support web developers and designers from multiple teams by standardizing the development environment and workflow, determining tech stack and best practices, as well as building commonly shared libraries. We also keep raising the bar of our code base, exploring the newest web technologies, and figuring out how different coding patterns can be utilized in our own context.

We are looking for talented individuals to join our team in 2025. As a graduate, you will get unparalleled opportunities for you to kickstart your career, pursue bold ideas and explore limitless growth opportunities. Co-create a future driven by your inspiration with TikTok.

Successful candidates must be able to commit to an onboarding date by end of year 2025.

Applications will be reviewed on a rolling basis. We encourage you to apply as early as possible.

Candidates can apply to a maximum of two positions and will be considered for jobs in the order you apply. The application limit is applicable to TikTok and its affiliates' jobs globally. Applications will be reviewed on a rolling basis - we encourage you to apply early.

Online Assessment
Candidates who pass resume evaluation will be invited to participate in TikTok's technical online assessment in HackerRank.

We are looking for a creative and passionate AI Application Algorithm Engineer to join our team. You will work on innovative AI applications in the field of TikTok development. As an AI Application Algorithm Engineer, you will be involved in building the next-generation R&D system, improving R&D experience and efficiency, and driving technological innovation in AI for TikTok.

Responsibilities:
Research and address challenges and issues in AI application development for TikTok architecture.
Design, develop, and optimize AI applications on the TikTok platform, enhancing the R&D experience and platform efficiency.
Explore new AI technologies and algorithms, integrating them into the R&D system for TikTok.
Participate in building and optimizing the next-generation R&D system to improve team efficiency and innovation capabilities.
Collaborate closely with cross-functional teams to understand business needs and provide AI technical support for the development of TikTok.

Qualifications

Minimum Qualifications:
- Bachelor's degree or higher in Computer Science, Software Engineering, or a related field, with relevant work experience in algorithms.
- Strong programming skills and proficiency in Python, C++, or Golang.
- Expertise in deep learning practices with experience applying deep learning models to products; proficient in common deep learning frameworks and understanding of data processing.
- Familiarity with LLM-enhanced technologies (SFT, vector recall, RLHF, prompts, etc.), with practical experience preferred; ability to read cutting-edge papers and translate them into technical projects for the team.

Preferred Qualifications:
- Strong hands-on ability, capable of independently tackling challenges in algorithm application, with resilience.
- Excellent team communication and collaboration skills, responsible and committed to delivering quality results.

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 $112000 - $177000 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.​

Our company benefits are designed to convey company culture and values, to create an efficient and inspiring work environment, and to support our employees to give their best in both work and life. We offer the following benefits to eligible employees: ​

We cover 100% premium coverage for employee medical insurance, approximately 75% premium coverage for dependents and offer a Health Savings Account(HSA) with a company match. As well as Dental, Vision, Short/Long term Disability, Basic Life, Voluntary Life and AD&D insurance plans. In addition to Flexible Spending Account(FSA) Options like Health Care, Limited Purpose and Dependent Care. ​

Our time off and leave plans are: 10 paid holidays per year plus 17 days of Paid Personal Time Off (PPTO) (prorated upon hire and increased by tenure) and 10 paid sick days per year as well as 12 weeks of paid Parental leave and 8 weeks of paid Supplemental Disability. ​

We also provide generous benefits like mental and emotional health benefits through our EAP and Lyra. A 401K company match, gym and cellphone service reimbursements. 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.​