Clean. Analyze. Visualize. Automate.
I'm CZ, a data analyst with an engineering background and a soft spot for messy data. I work across CRM data, reporting, and dashboards. Python, SQL, and AI help me automate the boring parts in minutes instead of hours.
Selected work
Tools and dashboards I've built.
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Flagship case study
From a VBA Workbook to a Python Tool Suite
Eight Tools and One Launcher, Built One Bottleneck at a Time
8 purpose-built tools in one launcher
Case study -
Apps Script and Google Sheets
VoIP Call Tracking Dashboard
Two Phone Systems, One Hourly Feed
2 VoIP providers merged into one 19-column schema
Case study -
Zoho Analytics dashboard
Database Management Dashboard
A Weekly Health Check for the CRM
Weekly refresh, read at a monthly level
Case study
Latest
What I've been writing and studying.
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Too Many Applicants, Too Few Jobs, and How to Win
What the numbers say about getting hired. A data story about the line every new graduate stands in: how long it is, why it barely moves, and how to get to the front.
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Analysis of Factors Influencing Lead Conversion: What Actually Predicts a Sale
A logistic-regression look at what actually predicts B2B lead conversion (data completeness, record age, seniority, and contactability) using a simulated CRM dataset built to reflect the same patterns.