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sana Ouerghi

@sanaouerghi

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I build Power BI dashboards and data models that improve operational decision-making.

Tunisia

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What I'm looking for

I'm looking to build high-impact BI and data visualization solutions, using Power BI, SQL, and Python to improve decision-making, operational performance, and data reliability.

At DXC Technology, I build interactive Power BI dashboards and Star Schema data models for enterprise clients including Nissan, Servier, and Viatris, giving leadership real-time operational visibility.

I've automated SQL and Python data-audit pipelines across 500+ enterprise data flows, improving data reliability by 15%. I also analyzed 10,000+ user-feedback records to identify bottlenecks that supported a 10% gain in platform stability.

I combine advanced DAX, Power Query, SQL, forecasting, and visual storytelling to turn complex requirements into executive-ready KPI reporting and SLA monitoring solutions.

Experience

Work history, roles, and key accomplishments

Data & BI Consultant

DXC Technology

Dec 2024 - Aug 2026 (1 year 8 months)

Engineered interactive Power BI dashboards and Star Schema data models with complex DAX measures for enterprise clients. Built automated SQL and Python data audit pipelines across 500+ flows, improving data reliability by 15%.

Power BI DAX Power Query SQL Python Data Modeling Star Schemas Time series Forecasting Statistical Analysis

Application & Technical Support Consultant

DXC Technology

Feb 2022 - Nov 2024 (2 years 9 months)

Gathered reporting requirements from international business units and diagnosed data defects, achieving a 98% resolution rate under strict SLAs. Structured weekly performance reports on ServiceNow/Jira and created SOPs and data dictionaries, reducing troubleshooting time by 25%.

ServiceNow Jira KPI Reporting Data Analysis Documentation SQL Incident Management