Software Engineer, Data Scientist, and Speaker ready to solve your next challenge.

I help companies build innovative solutions with Python, data analysis, and automation. From simple scripts to enterprise-level systems, I can bring your ideas to life.

Marcin Kraszewski

For over 5 years I've been developing solutions for businesses across a variety of industries. With expertise in Python, automation, and data science, I've helped organizations streamline their processes and make data-driven decisions.

I'm particularly passionate about OSINT investigations, creative applications of AI, and building tools that solve real-world problems.

As a full-stack developer, I can take your project from concept to completion, handling everything from data processing to user interface design.

Whether you need a data pipeline, an automated workflow, or a complete web application, I can help you develop a solution tailored to your specific needs. Let's discuss your project

Professional Experience

Systems Integration Specialist
Hapag-Lloyd
June 2024 - Present
  • Developed CI/CD pipelines running on AWS
  • Integrated third-party APIs with Databricks Data lake
  • Gained experience with Terraform, and Pyspark
Senior Data Scientist
ING
September 2023 - March 2024
  • Refactored Codebase for Enhanced Reliability
  • Mentored Team Members in Code Quality and Test Automation
  • Utilized Pyspark on Azure Cloud for Data Analysis
  • Implemented Type Hinting for Improved Maintainability
  • Facilitated Peer Code Reviews and Collaboration
Technical Lead (Python)
EY
May 2021 - July 2023
  • Refactored, updated, rewrote, and maintained Python code
  • Development environment fully integrated with the Azure Devops CI/CD solution
  • Worked on a cross-functional team with analysts, engineers, and domain experts
  • In addition to Python regularly made use of custom SQL queries
  • On occasion read and wrote JavaScript/TypeScript code
Senior IT Developer (Automation)
Nordea
April 2020 - April 2021
  • Led the development of an innovative web application that helps anyone at Nordea create an automated service by building it using a GUI then exporting to JSON
  • Converted a 20,000 article knowledgebase into a static application using Python and JavaScript
  • Applied open source intelligence techniques, driven by web scraping and API calls to services
  • Automated a dozen business processes using Powershell, and Python
  • Developed a suite of automated and easy to configure actions using RobotFramework
  • Instructed employees in 3 entry-level courses in Python & JavaScript

Education & Training

Bachelor of Fine Arts, Time Based Media: Animation
Milwaukee Institute of Art & Design
2006 - 2009

Studied Time Based Media with a focus on Animation techniques, visual storytelling, and digital content creation.

Associate in Applied Science, Time Based Media: Animation
Milwaukee Area Technical College
2003 - 2006

Activities and societies: MATC Times Student Newspaper

Foundational education in animation techniques, storytelling, and multimedia production.

"Marcin is very open minded and dedicated to his work. He also has a very optimistic approach even is stressful situations."

— Emil K., GTM & Revenue Operations

Selected Projects

Project 1

OSINT Investigation Dashboard

A comprehensive dashboard for Open Source Intelligence investigations, featuring data visualization, automated reporting, and integration with various public data sources.

Project 2

Semantic Job Search Engine

A job search tool using GPT-4 and BERT for semantic matching between job descriptions and user skills, providing more relevant results than keyword-based searches.

Project 3

Automated Data Pipeline

An end-to-end data pipeline for a financial institution, processing transaction data in real-time using Azure services and custom Python components.

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I've worked with

Workspace

Articles & Publications

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Videos & Tutorials

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Conference Talks & Presentations

Talk 1

Take action to protect your attention and focus

2022 • WarsawJS

I've created a tool to help you customize your apps/news feeds by reducing the effectiveness of dark patterns and other distractions.

Watch talk
Talk 2

Petridysh: Visualize tabular data as a biologist "sort of"

2023 • WarsawJS

Graphs and charts can only tell us so much about our data. What if there was a way to breath "life" into your visuals? This lightning talk explores an innovative approach to data visualization.

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Talk 3

Ductube - a little tool to remove annoying content

2022 • WarsawJS

A lightning talk about a browser extension I created to filter out unwanted content from video platforms.

Watch talk

Skills & Technologies

Programming Languages

Python JavaScript TypeScript SQL Powershell Bash Groovy

Technologies & Frameworks

RobotFramework Selenium Azure DevOps AWS Terraform Pyspark Azure Cloud CI/CD Git Vue.js BERT GPT Models

Areas of Expertise

Data Science Machine Learning OSINT Investigations Automation Web Development Data Visualization Technical Writing Public Speaking

Try it: Click on any skill to highlight related content throughout the page!

Let's work together

I'm currently available for freelance projects, consulting work, and speaking engagements.

Get in touch