Power BI developer for operational data that has to be right.

Independent Power BI developer for operational and enterprise data. Remote-first delivery across the EU and UK.

Power BI
DAX
Power Query
T-SQL
Azure SQL

About

An engineer's approach to data.

I'm Lorenzo Reale, a Power BI developer with an engineer's approach to data. I trained as an aerospace engineer at the Politecnico di Milano, then spent six years in London moving into enterprise data and analytics, building reporting that operational teams and leadership could rely on.

Approach

Good reporting starts long before the dashboard.

Most reporting problems aren't reporting problems. When operational numbers don't reconcile, the cause is usually upstream, in how the data was captured, modelled and moved, long before it ever reached Power BI.

I work with operational data, where the KPIs and the figures leadership acts on have to be defensible, not just presentable. I've built reporting in demanding, high-stakes environments, so I start at the data layer, not the chart.

That means semantic models that hold their logic, DAX you can audit, and a SQL foundation that won't quietly drift. Building the dashboard is the easy part, and the last.

Services

Three layers, one dependable reporting stack.

From the SQL foundation to the dashboard and the automation around it. Taken on as one coherent piece of work, or wherever you need a gap closed.

Power BI, end to end

Semantic models, DAX and Power Query built to hold up in production, then deployed and governed so they stay that way.

Power BI DAX Power Query Governance

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Data layer engineering

The foundation under the report. T-SQL, query optimisation and clean warehouse integration, so the numbers are right before they reach the model.

T-SQL SQL Server Azure SQL Modelling

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Power Platform automation

Removing the manual steps around reporting. Power Automate, SharePoint and Office Scripts that turn fragile spreadsheet routines into dependable workflows.

Power Automate SharePoint Office Scripts

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Case studies

Three projects, built end to end.

Demonstration projects on synthetic data for fictional clients: complete working Power BI reports, with the full models, DAX and data generators on GitHub.