(Yes, just like chia seeds!)
I’m a passionate Data Scientist who loves turning data into stories and insights. I specialize in making data tell its secrets with a blend of code, visualization, and modeling. I work at the intersection of data and product, using analytics to shape better decisions, features, and data products.
- Languages: Python, SQL, Java, JavaScript
- Libraries: Pandas, NumPy, Matplotlib, Seaborn, Scikit-learn
- Tools: Jupyter, Looker Studio, Tableau, Datawrapper, Excel
- Databases: MySQL, Snowflake, MongoDB, Neo4j, MS Access
- Other: ETL, A/B Testing, Data Modeling
- Product & Collaboration: Notion(content/ project pipelines), Kanban / sprint planning
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Business Analytics Scenarios | SQL
- Ad-hoc SQL analyses for 5 realistic business scenarios using a 100K+ order e-commerce dataset.
- Includes seller performance audits, late delivery investigation, campaign ROI measurement, and customer value. Showcases realistic, business‑focused SQL work.
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COVID Analytics Automation | Python
- Recreated my work from IBM.
- Automated COVID‑19 reporting pipeline with data cleaning, validation, and KPI calculations (7-day moving averages, test positivity, trends).
- Reduced reporting time by 80% (3-4 hours → 15 minutes) in production.
Case studies written from a product point of view: how I use data, user understanding, and iteration to build and improve products.
- InfosecDecompress podcast – content as a product, 0 to 1 education product in Mandarin
- COVID Analytics Automation – data product for internal stakeholders, research partners, and public dashboards
- Scratch Jr course (in progress) – Mandarin programming course for kids, from classroom format to online curriculum
📫 Let's connect: cjcwork1@gmail.com
all projects are made with ✨ + 🌿 + 💛 by Chia Chang