I’m a Business Process Analyst working in PtP (Procure-to-Pay), with a focus on automation and process improvement. I use tools like Python, Power Automate, Excel, and Power BI to streamline Accounts Payable operations and reduce manual work. This portfolio highlights some of the practical tools and automations I’ve built to support finance teams.

Marta KowalczykMarta KowalczykPtP Business Process Analyst & Automation Specialist
AlzheimerSALARY ANALYSISCOFFEE SHOPPolice ShootingsrEAL STATE LISTINGSAlzheimer disease analysisHR Salary Analysis in a CompanySALES ANALYSISPolice Shootings USA 2015-2021Madrid Apartment Pricesbike storeSales ANALYSISPOWERBISQLPOWERBIPOWERBIPOWERBIPOWERBIPOWERBIPYTHONPYTHONPYTHONSQLSQL

My Latest

Projects

DAta analysisap automation
DAta analysisap automationINVOICE GENERATORXML INVOICE PARSERPOTENTIAL DUPLICATES CHECKPythonWordMySQLMySQLSharePointPythonPythonExcelExcelA desktop application designed to generate customized PDF invoices based on user input. The program provides an user-friendly interface built with CustomTkinter, allowing users to easily enter customer details, product information, and pricing data. Once completed, the app automatically creates a professional PDF invoice from a Word template and saves all invoice details to a MySQL database for record-keeping.XML Invoice Parser is a desktop application that automatically reads XML invoice files, extracts all relevant financial and supplier information, and stores the results in both Excel and a MySQL database. The tool is designed to support Accounts Payable teams by eliminating manual invoice processing and ensuring clean, structured data for further analysis or reporting.The Potential Duplicate Invoices tool is designed to help Accounts Payable teams identify and flag invoices that may have been recorded more than once. By analyzing invoice numbers, dates, supplier names, legal entities and amounts, the tool highlights potential duplicates, reducing errors and preventing unnecessary payments. This solution was implemented as client’s Business Control.

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PythonStatisticsData VisualizationLanguagesSQLAutomationEDA with Pandas, Numpy, Matplotlib, Seaborn.Strong understanding of descriptive and inferential statistics.Visualization in Power BI, Python and Excel.Advanced Spanish & English, Native PolishProficiency in writing SQL queries for data
manipulation and extraction.

I’m a PtP Business Process Analyst with a strong interest in automation, data, and smart process design. My daily work involves supporting Accounts Payable operations, streamlining invoice handling, and identifying areas for improvement in PtP workflows. I’m especially passionate about using Python to automate repetitive tasks, clean and transform financial data, and build small tools that bring real value to AP teams.

I enjoy solving everyday problems with simple, practical scripts — from detecting duplicate invoices to generating reports or flagging anomalies in payment data. I also work with tools like Excel, SQL, and Power BI, but Python is where I find the most flexibility and creativity.

This portfolio highlights some of the tools and automations I’ve created to reduce manual work, improve accuracy, and support everyday PtP operations.

Hands-on experience automating accounts payable processes.Marta Kowalczyk