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Paweł Liberacki

@paweliberacki

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Data analyst at Amazon who cut reporting time from 2 days to 45 minutes and reduced data errors from 25% to 2.06%.

Poland

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At Amazon, I automated recurring reports and dashboards with VBA, SQL, Power Query, Power BI and QuickSight, cutting preparation time for a sample of reports from two days to 45 minutes per cycle. I also helped reduce a previously unmeasured data error rate from 25% to 2.06% in 11 weeks.

I built a returns-process data model and live SQL dashboard, and launched a Generative BI tool whose adoption grew from 11% to 80%. My experience also includes investment and real estate market analysis, plus a public portfolio of analytics projects on GitHub.

Experience

Work history, roles, and key accomplishments

Current

Independent Multi-Asset Market Analyst & Investor

Current

Self Employed

Mar 2022 - Present (4 years 7 months)

Manage a multi-asset portfolio across three brokers and three investment horizons, and built a custom dashboard for consolidating positions. Generated a net gain of PLN 85,000 over 3 years, outperforming the S&P 500 benchmark.

Portfolio Management Technical analysis Fundamental analysis Macro Analysis Dashboard Development Financial Analysis

Project owner

Amazon

Aug 2024 - Aug 2026 (2 years)

Analysed unit flow and zone usage data to define a priority 'golden zone' and wrote an 18-page playbook with Excel/VBA tools, reducing indirect labour hours by 8 per shift.

Data Analysis Excel VBA Process Improvement Playbooks Dashboard Development

Operations & Data Analyst / Area Manager

Amazon

Aug 2024 - Aug 2026 (2 years)

Analysed, visualised and presented data to stakeholders at 4 levels of management, designing and automating ~40 reports and dashboards. Automated reporting with VBA, SQL and Power Query, cutting prep time from 2 days to 45 minutes per cycle, and improved data integrity by reducing error rate from 25% to 2.06%.

Power BI QuickSight VBA SQL Power Query AWS RedShift Data Analysis Data Visualization Report Automation Data Integrity Root Cause Analysis AI Powered Business Intelligence (BI)Team Leadership Kaizen

Trainer and tool co-author

Amazon

Aug 2024 - Aug 2026 (2 years)

Trained 10 Area Managers and 6 Team Leaders in SQL, QuickSight and Excel, and automated productivity and audit-findings reports for 12 Area Managers.

SQL QuickSight Excel Training Report Automation Data Analysis

Market Risk & Asset Management Intern

Skarbiec TFI

Dec 2023 - Feb 2024 (2 months)

Conducted fundamental analysis of WSE-listed companies, including balance sheet, income statement, and cash flow analysis. Applied valuation and portfolio theory concepts and supported advisory processes in matching investment fund strategies to client risk profiles.

Fundamental analysis Financial Statement Analysis Valuation Modern Portfolio Theory Security Market Line Beta Macroeconomic Analysis

Real Estate Market Analyst

Emmerson Lumico

Mar 2023 - Aug 2023 (5 months)

Built a structured multi-city investment database from multi-source data and produced detailed market reports for stakeholders and investors covering price-per-m² trends by city and district.

Data Analysis Market Research Database Management Report Writing Real Estate Analysis