Product research worksheet — a second component of the same synthetic sample workbook as the profitability demo, not a separate client engagement. AI-assisted self-initiated template showing structured product/manufacturer fields, source types and placeholder document URLs. All companies, products and .invalid URLs are fictional. This demonstrates the reporting structure only: no supplier verification, completed market research or chemical safety assessment is claimed. Source workbook: https://content.freelancehunt.com/snippet/8e3dad19-1335-4466-a6cd-56f43f3735d6/2091468/probki_syntetyczne.xlsx
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Transport Data Quality Sentinel — self-initiated hackathon demonstration, built with AI coding assistance and synthetic transport records only. A Python CLI checks manifest quality and produces JSON evidence and an HTML report; CI runs tests and positive/negative checks. This image is the clean synthetic report, not validation of real vehicles, routes or customers. Real source verification remains necessary for production data. Public source and recorded CI evidence: https://gitlab.com/gitlab-ai-hackathon/transcend-october-2026/43350048/transport-data-quality-sentinel
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Inventory data cleanup — self-initiated Excel demo using synthetic data. AI-assisted, not a client engagement. The example tracks original rows, inconsistent SKU/category/price formats and duplicate copies. Missing values are flagged rather than invented. The image shows the synthetic source and duplicate-removal trace. Existing workbook and before/after demonstration: https://www.truelancer.com/portfolio/excel-data-cleaning-inventory-before-and-after-demo-335964
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Project profitability in Excel — self-initiated demo, synthetic data only. AI-assisted preparation, not a client project. The workbook summarises revenue, costs, result and margin for 36 fictional project records, with formulas and a chart. The screenshot shows fictional totals. Limitation: adding rows requires extending the summary ranges. Source workbook: https://content.freelancehunt.com/snippet/8e3dad19-1335-4466-a6cd-56f43f3735d6/2091468/probki_syntetyczne.xlsx
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