Years turning data into decisions
Dashboards & data models shipped
datalys — from data + lysis, Greek for unlocking and separating. Olympia Tsamoura is a business intelligence analyst. The practice sits between warehouse and boardroom: models that hold their meaning, and stories leadership can actually use.
Semantic layers, dbt models, and Power BI datasets — the architecture that makes a number mean the same thing in every room.
Executive dashboards and self-serve views that carry the decision without a second deck. The model is only finished when someone uses it.
AI governance in the maritime industry, a Databricks funnel that shows where shoppers leave, and SQL that makes a warehouse honest.
GDPR, the 6Ws, and a hazard taxonomy for AI accidents. Where governance, trust and ethics meet in a fragmented, safety-critical industry.
50,000 sessions on the Databricks Lakehouse. Bronze to Gold, an AI/BI dashboard, and the 58.3% leak between product view and cart.
Two messy Snowflake exports — five price formats, five date formats — cleaned, flagged, and joined into one analysis view.
Power BI, dbt, and the warehouse layer underneath — credentials that map to the work, not the other way around.
Get in touchIndustries served
Certifications & diplomas
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Tell me about the project and the decisions you need to make. I'll help you unlock the answers in your data.
hello@datalysanalytics.com