Senior LLM Evaluation Researcher - TikTok

Responsibilities

About the Team:
We are looking for a passionate and detail-oriented specialist to join our AI experience team. In this role, you will be responsible for defining and driving the evaluation framework for Tako's AI-powered features, ensuring our large language model (LLM) responses meet the highest standards of quality, relevance, and user satisfaction.

Responsibilities
- Develop a deep understanding of LLM capabilities and stay current with the latest research paradigms in model evaluation; apply both qualitative and quantitative user research methodologies to explore and define the ideal response quality standard for AI in diverse use cases.
- Own the end-to-end online experience quality of Tako; design and build a comprehensive evaluation framework by integrating internal expert assessments, crowdsourced testing, and LLM-based automated evaluation; identify experience gaps and translate findings into prioritized, actionable improvement recommendations for the team.
- Collaborate with international operations teams to drive the execution of evaluation programs, including the maintenance and curation of evaluation datasets, as well as the routine execution and analysis of benchmark assessments.

Qualifications

Minimum Qualification(s):
- 3+ years of hands-on experience in LLM evaluation or related research; proven track record in designing AI quality assessment frameworks;
- Highly organized and detail-oriented with strong logical thinking; excellent communication and collaboration skills with the ability to work effectively across cross-functional teams.

Preferred Qualification(s):
- Master's degree or above; background in Cognitive Science, Educational Measurement, or quantitative Social Science research is preferred.
- Experience in user research and data analysis projects is a plus.
- High level of self-motivation and ability to work in a fast-paced environment.

Job Information

[For Pay Transparency] Compensation Description (annually)

The base salary range for this position in the selected city is $108800 - $288000 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.