TikTok
Senior/Staff LLM Application Engineer - Data Application
San Jose, California · Staff · Full-time · Posted Oct 28, 2026
About the job
Develop and iterate intelligent data products that use LLMs for data querying and analytics, including A/B testing and BI dashboards.
What you'll do
- Develop and iterate intelligent data products.
- Analyze user feedback and business insights to identify and resolve issues.
- Monitor, learn, and adopt emerging industry technologies.
What they ask for
- Familiarity with data products and foundational knowledge of data production, querying, analytics, and related ecosystems.
- Solid understanding of LLM application development concepts, such as prompt engineering, knowledge retrieval, agentic systems, and benchmarking.
- Proficiency in Python and other programming languages, with strong coding skills.
Nice to have
- Experience in data product development or domain-specific data analysis.
- Understanding and hands-on experience with LLM fundamentals, fine-tuning, evaluation, and application ecosystems.
Tools
Python
AI focus
Integrate LLMs and related technologies into data products for querying and analytics; work with areas such as prompt engineering, knowledge retrieval, agentic systems, benchmarking, fine-tuning, and evaluation.
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