David Cornejo

Junior Data Analyst with administrative and accounting experience and training in Data Analytics. Skilled in Excel, SQL, Power BI, Python, and data visualization tools for business analysis, reporting, and decision-making. I also develop data-driven technology projects using Next.js, React, TypeScript, PostgreSQL, Prisma, and Supabase, applying concepts related to dashboards, metrics, automation, and information management.

Interested in growing in BI, Marketing Analytics, Reporting, Fintech, Operations, and data-driven digital products.

Administrative Accounting Analyst at Estudio Soto & Asociados (2023-01 – Present)

• Recorded and analyzed purchase and sales documents for tax filings, including VAT and Gross Revenue Tax.
• Managed and entered accounting information using business systems such as Onvio and Tango Gestión.
• Prepared and organized administrative and financial data for accounting reports.
• Collaborated in information analysis and control processes to improve record accuracy.

Administrative Accounting Assistant at Estudio Contable M&B (2021-01 – 2023-12)

• Recorded and reconciled administrative and accounting transactions.
• Organized and controlled financial documentation for accounting and tax processes.
• Supported tax filings and the preparation of information for accounting reports.
• Worked collaboratively with the accounting team to manage and control financial information.

Football Referee at Argentine Football Association (AFA) (2018-01 – Present)

• Officiated official football matches by applying the Laws of the Game and making real-time decisions.
• Coordinated with refereeing teams to ensure the proper development of matches.
• Managed high-pressure situations while maintaining objectivity, leadership, and professional judgment.
• Prepared post-match referee reports for disciplinary records.

Data Analytics in Data Analytics – Henry Bootcamp (2025-01 – 2026-12)

Economics coursework in Economics – University of Buenos Aires (2016-01 – 2016-12)

Football Referee Course in Football Refereeing – Asociación Argentina de Árbitros (2016-01 – 2017-12)