AI Data Analyst
Currently working as an AI Data Analyst, with focus areas including Large Language Models, AI Evals, and data analysis for real business and product decisions.
Growth Analytics / AI Product Analytics / LLM Evaluation
About Me
I'm Jiaqi He. I enjoy turning business problems into data-driven insights and building practical AI-powered analytics products. I have also completed the Certificate in Quantitative Finance (CQF), which strengthened my foundation in quantitative modeling and machine learning in finance.
Core Skills
I focus on turning growth, product, and business questions into verifiable data judgment, then shaping that judgment into more reliable AI analytics products.
My interests sit across Growth Analytics, AI Product Analytics, and LLM Evaluation: not just whether a model is capable, but whether it creates stable value in real tasks.
Personal Background
Work, education, and CQF
China University of Mining and Technology, Beijing
Bachelor of Engineering in Data Science, with hands-on foundations in SQL, Python, machine learning, and applied data analysis.
CQF / Quantitative Finance
Completed the Certificate in Quantitative Finance, strengthening practical understanding of quantitative modeling, risk management, machine learning, and deep reinforcement learning.
Blogs
I often share my experience building AI products. Below is a selection of my long-form writing.
Growth Data Agent Product Design
Data Agent
How do we know whether a model is strong?
LLM Evaluation
How LLMs are trained: from data to dialogue
LLM Training
Transformer Block: the building block of LLMs
Transformer
Attention: how does a model decide where to look?
Transformer
What problem did the Transformer actually solve?
Transformer