Marcia Cornejo
Marcia Cornejo

Senior BI Analyst and Power BI Developer

Actively looking · Member since 7 Oct 2026
Location
Buenos Aires, Argentina
Desired salary
Unspecified
Work preference
Remote Only / Full Time
Experience level
Senior

About

Professional summary

I specialize in Power BI development, including DAX, Power Query, row-level security, data modeling, and data storytelling. I build executive dashboards that transform complex data into actionable business insights.

Skills

20 capabilities

Tech stack & tools

Working toolkit

Collaboration

Experience

Career history

Analytics and Modeling Analyst Accenture Argentina

Designed and deployed automated data pipelines that reduced manual reporting effort by 40%, streamlining weekly insight delivery for senior stakeholders.

Implemented scalable BI solutions that consumed data directly from BigQuery on Google Cloud Platform, enabling real-time data model updates. Built Power BI star-schema data models that improved critical report processing speed by 30%.

Collaborated with global leadership to define and unify security KPIs, establishing a single source of truth across operations. Managed stakeholders across international teams and produced English technical documentation for global audiences.

Power BI Developer Meta Platforms

Developed revenue-impact analytics dashboards for Meta Platforms, helping senior management identify key business trends and make decisions in real time.

Performed data quality validation using SQL in BigQuery to ensure parity between source systems and final visualizations. Redesigned the information architecture of existing dashboards using UX best practices, improving end-user adoption.

Education

Learning history
No education data available.

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