KZ

Hello, I am Kessie!

I believe great products start with great questions. My work blends data science, experimentation, AI, and product strategy to find the right answers and build what matters.

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✨ A bit about me

Turning curiosity
into clarity

I started my career following my curiosity — diving into data, storytelling, and helping others find clarity in complexity.

From analyzing user journeys to designing experiments, I've always loved turning ambiguity into insight.

Over the years, I've worked across tech, education, and consulting, solving messy problems with analytics, machine learning, and a product mindset.

Outside of work, I'm constantly exploring new AI techniques and learning new skills to improve how I think and work.

Superpower: Turning vague questions into thoughtful analysis and clear decisions 📊
Kessie Zhang
All projects

Projects

A selection of LLM agents and classical ML projects spanning classification, NLP, and forecasting.

AI Coach Kessie

AI Coach Kessie

An AI-powered coaching agent built on an LLM that provides personalized career and productivity guidance, drawing on coaching frameworks to help users set goals and stay accountable.

LLMAI Agent

Therapist Agent

A conversational AI therapist agent that uses evidence-based techniques (CBT, motivational interviewing) to support users through structured, empathetic dialogue.

LLMAgentNLP

Prospect Targeting

Predicts whether new Airbnb users will book within a month of signup using personalized marketing and classification models.

ClassificationNLP
4821 risk score

Credit Default Prediction

ML model to predict credit card default risk using customer payment history, demographics, and credit utilization data.

ClassificationRisk Assessment

Recommender System for Perfume

NLP-based perfume recommendations that help users find cheaper alternatives or discover their next signature scent.

NLPRecommender
★ ★ ★ ★ ★

Hotel Reviews Analysis

Extracts pros and cons from hotel reviews to help users make faster, better-informed booking decisions.

NLPSentiment

Air Passenger Demand Forecasting

Time series model to forecast air passenger demand and increase aircraft utilization, a key airline operations KPI.

Time SeriesForecasting

NBA Player Salary Prediction

Regression model helping team managers allocate salaries using performance metrics and players identify areas to improve.

RegressionML
⭐ Workplace recognition

What colleagues say

You are a natural when it comes to thinking through design and user experience and making sure we are asking the right questions. We are already seeing the impact of this work!

— Cait N., Lead UX Researcher

You took the time to break apart the initiative fully. Your curiosity, creativity, and dedication greatly enhanced our approach and outcomes!

— Olivia R., Customer Success

I admire how you approached several roadblocks and explored alternative solutions to ensure we reached our expected outcome. Thank you for your innovative approach!

— Oluwunmi A., Product Manager

You're always up for a challenge and ready with creative solutions to difficult problems. Most importantly, you're incredibly kind and wonderful to work with.

— Leigh B., Marketing

What I find best about you is that you go the extra mile to close any remaining gaps. Looking forward to keeping working with you!

— Subir R., Product Manager

I thank you for your curiosity, diligence, patience and guidance in how to best represent the answers and insights we're looking to learn!

— Iulia A., Product Manager
What I work with

Skills

PythonMachine LearningLLMsExperimentationSQLStatisticsNatural Language Processing (NLP)RAG PipelinesAI AgentsAWSTableauData VisualizationData TransformationProduct StrategyConsulting
Get in touch

Let's build data-driven products that make a difference.

I love working at the intersection of data, product, and people. If you're building something thoughtful, or exploring ideas in product, AI, or analytics, I'd love to connect!

Let's connect! View GitHub