Portfolio

Sora Oya — Data Analyst (SQL-first)

I build decision-ready analytics with SQL, Power BI/Tableau, and a product mindset.

Skills
SQL (CTE, Window) Data Modeling Power BI Tableau DAX Python (pandas) Excel

Featured Projects

Power BIPostgres

Rent Affordability Radar

Tracks NZ rental stress: Postgres aggregation → embedded Power BI with latest-month KPIs and area comparison.

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SQLPower BI

Retail Sales Optimization

End-to-end pipeline: schema design, windowed cohort metrics, and a one-page Power BI to cut stockouts.

SQLTableau

NZ Transport Demand

Public transport trips + weather joined in SQL; Tableau story points highlight peak loads.

SQL

ETF Signals (SQL-only)

All in SQL: common table expressions generate rolling signals for GLDM/TLT backtests.

About

SQL-heavy analyst with experience across finance and operations. I enjoy translating messy business questions into clear metrics and simple dashboards. Based in Auckland, open to remote.

Contact

soraoya19990518@gmail.com