Daniel Lee John
Senior Power Bi Developer @Ground Control
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WORK HISTORY
Senior Power Bi Developer @Ground Control
As Ground Control’s lead Power BI specialist, I architect, automate, and scale business intelligence solutions across the enterprise — combining modern data modeling, automation, self-service enablement, and governance strategy to drive operational excellence, carbon reporting, and business insight.• Lead developer of Ground Control’s enterprise Power BI platform, supporting 500+ users and 600+ reports across multiple departments. • Built reusable semantic models using star schema, calculated groups, field parameters, and centralized row-level security (RLS). • Created dynamic filtering using TREATAS, ISINSCOPE, and HTML-formatted slicers with icon-driven visuals. • Delivered ad hoc data analysis and Excel development for budgeting, KPIs, delivery performance, and sustainability metrics. • Designed Excel calculators and models integrated with Power BI dashboards for business agility and insight. • Architected a self-service BI strategy with governed golden datasets and centralized RLS for scalable report creation. • Delivered Power BI enablement through GC Learn, including self-produced video tutorials, live sessions, and drop-ins. • Built GIS-enabled dashboards using ArcGIS, Shape Maps, and custom GeoJSON layers for geospatial delivery analysis. • Integrated Microsoft Fabric (OneLake) to centralize data storage, metadata lineage, and real-time reporting workflows. • Automated ETL pipelines from SharePoint, D365, SafetyCulture, and custom APIs using Power Query with pagination and token auth. • Developed reusable Power Query functions for parsing JSON, XML, ZIP files, and structured schema expansion. • Created a Power BI Monitoring Suite with activity logs, workspace usage, and platform adoption dashboards. • Automated metadata extraction using REST APIs and Power Automate for governance, lifecycle tracking, and optimization.
EDUCATION
Royal Navy Submarine’s
Mechanical and Electrical Engineering
Gorseinon College
Mechanical Engineering
Royal Navy Submarine School
Engineering
ABOUT DANIEL LEE JOHN
I build enterprise-scale analytics ecosystems that turn raw data into trusted insight…
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