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Patryk Sitarek

Data Engineer

Fabric Cloud Engineer

Machine Learning Engineer

  • About
  • Resume
  • Skills
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Patryk Sitarek
Patryk Sitarek
Patryk Sitarek
Patryk Sitarek
Patryk Sitarek

Data Engineer

Fabric Cloud Engineer

Machine Learning Engineer

  • About
  • Resume
  • Skills
  • Contact
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Resume

Experience
2024 - Present
Data Engineer
Warsaw, Accenture

End-to-end involvement in initiatives relating to data processing in Microsoft Fabric. Starting from solution design, through the actual implementation of data ETL processes, right to the presentation and handover of the solution. Managing and maintaining the Fabric/Azure platform within the organisation.

2022 - 2023
Junior Data QA Engineer
Warsaw, BitPeak

Initially, I was responsible for data QA processes. Later, my role shifted towards developing processes for loading data into data models. Primarily using Azure Data Factory and Synapse Analytics to build a data model and BI reporting products.

2016
IT Internship
Leipzig, Vitalis GmbH

An internship at a training centre in Leipzig, Germany. My responsibilities included maintaining database services and operating systems, and managing the local area network.

Key Projects

Fabric Costs & Utilization Reporting

Fast-Moving Consumer Goods

The project involved creating a data model and reporting on the costs of Power BI/Fabric platform resources used by individual teams, so that they could contribute towards the platform’s costs. In addition, a separate tool was provided to monitor the actual total costs of the Microsoft Fabric platform.

As a data engineer, I was responsible for the solution design and the final implementation of the solution, creating ETL processes and co-developing the data model.

Technology stack

  • Microsoft Fabric
  • Lakehouse
  • Warehouse
  • Data Pipeline
  • PySpark Notebook
  • T-SQL Stored Procedure
  • Power BI
  • OneLake
  • Azure Data Lake Storage Gen2
  • Fabric Shortcut
  • Direct Lake
  • Python
  • T-SQL

Power BI Tenant Unified Inventory

Fast-Moving Consumer Goods

A centralized data model and report on Power BI tenant inventory. The tool consolidates data on all artefacts and workspaces in Power BI, their users and general information on resource consumption. It highlights trends in the creation of objects, their consumption and adoption by users.

As a data engineer, I was responsible for migrating the existing solution to Microsoft Fabric, refactoring the code and making it more robust. I developed data pipelines and data extraction and transformation processes within a medallion architecture and in Lakehouse and Warehouse environments.

Technology stack

  • Microsoft Fabric
  • Lakehouse
  • Warehouse
  • Data Pipeline
  • PySpark Notebook
  • T-SQL Stored Procedure
  • Power BI
  • OneLake
  • Azure Data Lake Storage Gen2
  • Fabric Shortcut
  • Direct Lake
  • Python
  • T-SQL

Optimal Freight Cargo Split For Supply Chain Management

Fast-Moving Consumer Goods

The project involved implementing a recommendation algorithm for order splitting (knapsack problem) to optimally divide the order based on product parameters and available transport fleet. The algorithm is used on the wholesale platform of a leading FMCG company worldwide.

The benefits of the project are:

  • Automatic recommendations for freight forwarders that replaced their manual work
  • Optimized transportation resources, reducing shipping costs

Technology stack

  • Python
  • Azure Machine Learning
  • Adobe Commerce (Magento)
  • API Microservice

GenAI-based Application For Customer Service Support

Business Development

Development of a template application that streamlines customer service and evaluates service delivery. Based on the conversation, it can suggest notes, summary messages or a list of actions to be taken, as well as assess the conversation for compliance with guidelines.

In my role as a developer, I worked on the core functionality for creating functional modules based on the transcript provided.

Technology stack

  • Microsoft Azure
  • Azure Foundry Tools
  • OpenAI API
  • Python

Data Model & Power BI Reporting

Payments

The product was a data warehouse built in a medallion architecture, designed to enable efficient processing of sales data from sources with limited availability while maintaining high scalability.

The benefits of the project are:

  • Scalable solution tailored to varying workloads and requirements during the off-peak and peak seasons.
  • Data model that integrated key business data for custom reporting
  • Interactive reports analysing key sales processes and customer adoption

Technology stack

  • Microsoft Azure
  • Azure Data Factory
  • Azure Synapse Analytics
  • Data Pipeline
  • PySpark Notebook
  • Azure Data Lake Storage Gen2
  • Serverless SQL pool
  • Python
  • T-SQL

SAF-T Tax Reporting

Healthcare

A data warehouse for the company’s SAF-T Tax reporting. Worked as Data QA, responsible for validating data in the model, ETL processes, and automated validation rules within daily processing.

The benefits of the project are:

  • Centralized data warehouse for Standard Audit File for Tax (SAF-T) reporting
  • Reduced hundreds of hours of manual work by people to a few hours of result verification
  • Minimized the number of errors that required subsequent correction

Technology stack

  • Microsoft Azure
  • Azure Synapse Analytics
  • Azure Data Factory
  • Azure SQL Database
  • Azure Data Lake Storage Gen2
  • Data Pipeline
  • PySpark Notebook
  • Python
  • T-SQL
Certifications
DP-700: Fabric Data Engineer Associate
Microsoft

Years of hands-on experience developing, designing, and running Extract, Transform and Load processes or data model workloads in the Microsoft Fabric cloud.

Certificate
DP-600: Fabric Analytics Engineer Associate
Microsoft

Validates skills to design, build, and deploy end-to-end enterprise analytics solutions using Microsoft Fabric and Power BI, including data preparation, data modelling, and data analytics assets.

Certificate
AI-900: Azure AI Fundamentals
Microsoft

It demonstrates foundational knowledge of artificial intelligence and machine learning concepts, and how to apply them using Microsoft Azure services.

Certificate
Certified Tester Foundation Level
ISTQB®

It relates to my  Data QA background. It helped me consolidate my knowledge and experience of the tests I develop and raised my awareness of this role.

Education
 Master of Micro- and Nanotechnology
2021 - 2023
Master of Micro- and Nanotechnology
University of Silesia, Katowice

A degree programme at the intersection of IT and physics, relating to the development of nanotechnology in the context of IT, with a specialisation in machine learning.

 Bechelor of Computer Science
2017 - 2021
Bechelor of Computer Science
University of Silesia, Katowice

Bechelor of Engineering in Computer Science. Secialisation in algorithms and data structures, relational database management and machine learning.

2013 - 2017
Technician of Computer Science
ZSOT, Lubliniec

Technical high school specialising in IT. I gained fundamentals of IT and its key concepts, and obtained my first professional qualification.

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