Derek Ehrsam's Work | ContraWork by Derek Ehrsam

Derek Ehrsam

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Derek Ehrsam

Data Cleanup, Python Debugging & Workflow Automation

New to Contra

Derek is ready for their next project!

Sunnyvale, USA

Work Services About

Sunnyvale, USA

Cover image for Workflow Automation Sandbox & Test

Workflow Automation Sandbox & Test Plan Specimen

Cover image for Receipt-to-Excel Validation Specimen

Receipt-to-Excel Validation Specimen

Cover image for Document Transcription & QA Specimen

Document Transcription & QA Specimen

Cover image for Synthetic Sales P
erformance Dashboard
A portfolio

Synthetic Sales P erformance Dashboard A portfolio demonstration built with 288 deterministic synthetic sales records. The workbook separates raw data, monthly and regional summaries, KPI formulas, conditional formatting, and charts, with QA and disclosure notes. It is not client work or a client result. Built to demonstrate transparent Excel reporting and a maintainable handoff.