CH@curt-hayashida

Early-career data builder focused on SQL and analytics

I transform messy CSVs into structured databases and dashboards that inform decisions. Currently finishing a Breaking Games externship.

Work samples

Portfolio items show data cleaning, schema design, query work, and a Q4 dashboard built during the Breaking Games externship using SQL and a writing assistant.

  • SQL & Database Architecture Externship with Breaking Games
    SQL & Database Architecture Externship with Breaking Games
    Breaking Games logo

    Breaking Games · Oct 2026 · ✅ Verified by Extern

    SQL & Database Architecture Externship with Breaking Games

    Turn six messy CSVs into an analytics database and a Q4 dashboard that drives real business decisions. SQL + Claude.

    Analytics Database DesignData AnalysisSQL FundamentalsData Storytelling

About me

I transform messy CSVs into structured databases and dashboards that inform decisions. Currently finishing a Breaking Games externship.

I’m an early-career data enthusiast learning SQL, data modeling, and dashboarding through hands-on projects. Currently completing a Breaking Games externship where I turned messy CSVs into an analytics database and a Q4 dashboard.

Externships

SQL & Database Architecture Externship with Breaking Games

Completed · Oct 2026

Skills

SQLDatabase schema designData cleaning from CSVsDashboard creation (Q4 dashboard)Analytical thinkingFamiliarity with Claude (AI assistant)

✅ Verified by Extern

SQL & Database Architecture Externship with Breaking Games

Turn six messy CSVs into an analytics database and a Q4 dashboard that drives real business decisions. SQL + Claude.

Analytics Database DesignData AnalysisSQL FundamentalsData Storytelling

Overview

The externship ingested six raw e-commerce CSVs, profiled their fields, and defined cleaning rules before mapping them into a relational analytics schema. The work set up a queryable SQLite database and produced a Q4 dashboard specification based on sample queries and the consolidated schema.

SQL & Database Architecture Externship with Breaking Games
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What I've accomplished

I audited six raw tables and produced five SQL queries that returned product and revenue answers, with query text and results recorded in a Week 1 Holiday Game Plan document.

Project breakdown

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