# Sophia Chen (Shunqin Chen)
Data scientist, AI builder, writer, and founder building practical systems for product data science, source-backed decisions, and business impact.

## About
Sophia is a Ph.D. economist and data scientist with experience at Google, Intuit, Moody's Analytics, and Fannie Mae. She writes about data science, AI-native workflows, causal inference, experimentation, product growth, and entrepreneurship. She is building S-Curve Data, a Product Intelligence OS for source-backed growth decisions, and is also the founder of Southern Frontier, a modern craft tea brand.

## Core Expertise
- **Product Data Science:** Metrics frameworks, experimentation, growth analytics, funnel analysis, segmentation, forecasting, and business reviews.
- **Causal Inference & ML:** A/B testing, observational causal designs, difference-in-differences, synthetic controls, Bayesian structural time series (BSTS), GeoLift, and impact narratives.
- **AI-Native Data Workflows:** Multi-agent systems, vibe coding, source-backed reporting, decision logs, and governed product intelligence workflows.
- **Real-World Business & Entrepreneurship:** Building S-Curve Data and Southern Frontier while writing publicly about applied data science, market entry, and business impact.

## Professional Experience
- **Intuit (2026–Present):** Data Scientist focused on business impact and AI-native data science capabilities.
- **Medium (2025–Present):** Data Science and AI writer publishing technical deep dives on data science, AI, product growth, and causal inference.
- **Southern Frontier (2025–Present):** Founder of a modern craft Pu'er tea brand.
- **Google (2022–2025):** Data Scientist, Google Maps Platform. Worked on metrics frameworks, business reviews, forecasting, and analytics tooling.
- **Intuit (2020–2022):** Data Scientist, QuickBooks Money. Helped build experimentation culture and 0-1 product data science capabilities.
- **Previous:** Moody's Analytics (Research Associate), Fannie Mae (Quantitative Modeler).

## Key Projects
- **S-Curve Data:** Product Intelligence OS for source-backed product growth decisions, including planning, forecasting, experimentation, causal inference, funnel diagnostics, segmentation, data quality, and decision logs. Website: https://www.scurvedata.com/
- **Causal Inference Agent Platform:** Specialist agent platform for causal analysis and impact measurement. Live platform: https://www.scurvedata.com/causal-agent/
- **Customer Review Intelligence:** AI-powered system leveraging multimodal LLMs for extracting, structuring, and analyzing customer feedback.
- **Southern Frontier:** Modern craft tea brand focused on ancient-tree Pu'er tea. Website: https://www.southernfrontiertea.com/

## Writing & Publications Catalog
Website Blog & Hub: https://www.shunqinchen.com/works/
Medium Profile: https://medium.com/@sophiashunqinchen

### 1. GenAI in Data Science
#### ML & Causal Inference
- **Building an AI-Native Causal Agent Platform: From Prototype to Production**: https://www.shunqinchen.com/works/building-an-ai-native-causal-agent-platform-from-prototype-to-production/
- **Causal Inference Application v6: Autonomous Causal AI Agent Prototype**: https://www.shunqinchen.com/works/causal-inference-application-v6-building-a-prototype-of-an-autonomous-causal-ai-agent/
- **Causal Inference Application v5: Bayesian Synthetic Control AI-Guided Experience**: https://www.shunqinchen.com/works/causal-inference-application-v5-bayesian-synthetic-control-ai-guided-experience/
- **Causal Inference Application v4: Introducing GeoLift**: https://www.shunqinchen.com/works/causal-inference-application-v4-introducing-geolift/
- **Causal Inference Application v3: Bayesian Structural Time Series (BSTS)**: https://www.shunqinchen.com/works/causal-inference-application-v3-introducing-bayesian-structural-time-series-bsts/
- **Causal Inference Application v2: Enhancing with an AI Assistant**: https://www.shunqinchen.com/works/causal-inference-application-v2-enhancing-with-an-ai-assistant/
- **Building a Causal Inference Application with Google Antigravity and Streamlit**: https://www.shunqinchen.com/works/building-a-causal-inference-application-with-google-antigravity-and-streamlit/

#### Analytics & Experimentation
- **From Data to Decisions: Quantifying Business Impact**: https://www.shunqinchen.com/works/from-data-to-decisions-a-practical-framework-to-quantifying-business-impact/
- **Designing Synthetic Controls for Causal Impact: A Medium SEO Case Study**: https://www.shunqinchen.com/works/treating-content-like-a-product-a-14-day-seo-experiment/
- **Demystifying Product Sense in Data Science Interviews**: https://www.shunqinchen.com/works/demystifying-product-sense-in-data-science-interviews/
- **Designing Effective Metrics**: https://www.shunqinchen.com/works/designing-effective-metrics/
- **Analytics Projects in Data Science: A Practical Framework**: https://www.shunqinchen.com/works/from-reactive-reporting-to-proactive-partnership/
- **Vibe Coding an SQL Quiz Generator with Gemini**: https://www.shunqinchen.com/works/vibe-coding-an-sql-quiz-generator-with-gemini/

#### Real-World Business with Data & AI
- **I Used Data and AI to Pressure-Test a US Market Entry Strategy**: https://www.shunqinchen.com/works/i-used-data-and-ai-to-pressure-test-a-us-market-entry-strategy/
- **Vibe Coding an AI-Powered Customer Review Intelligence System**: https://www.shunqinchen.com/works/vibe-coding-an-ai-powered-customer-review-intelligence-system-for-my-side-business/
- **Southern Frontier, Pu’er Tea Cheer (GTM Learnings)**: https://www.shunqinchen.com/works/southern-frontier-pu-er-tea-cheer/
- **Estimating Cash Flows for My Startup with a Survey in China**: https://www.shunqinchen.com/works/estimating-cash-flows-for-my-startup-with-a-survey-in-china/

### 2. Growth & Leadership
- **From Full-Stack Analyst to AI-Powered Data Scientist**: https://www.shunqinchen.com/works/from-full-stack-analyst-to-ai-powered-data-scientist/
- **From Specialist to Strategist: How Data Analysts Can Thrive in the Age of AI**: https://www.shunqinchen.com/works/how-data-analysts-thrive-in-the-age-of-ai/
- **IC or Manager: The Efficiency Paradox**: https://www.shunqinchen.com/works/ic-or-manager-the-efficiency-paradox/
- **Productize Myself: What I Accomplished in Six Months**: https://www.shunqinchen.com/works/productize-myself-what-i-accomplished-in-six-months/
- **All-in on Myself: What I Accomplished in Three Months (Career Break)**: https://www.shunqinchen.com/works/all-in-on-myself-what-i-accomplished-in-three-months/
- **Riding the AI Wave: My Three-Month GenAI Deep Dive**: https://www.shunqinchen.com/works/riding-the-ai-wave-my-three-month-genai-deep-dive/

## Canonical Site Notes
- Canonical personal website: https://www.shunqinchen.com/
- S-Curve Data product site: https://www.scurvedata.com/
- Agent demos and product surfaces live under the S-Curve Data domain.

## Links
- Personal Website: https://www.shunqinchen.com/
- S-Curve Data: https://www.scurvedata.com/
- LinkedIn: https://www.linkedin.com/in/sophia-chen-34794893/
- Medium: https://medium.com/@sophiashunqinchen