About Me

I’m a full‑stack developer with a background in data science. I enjoy building working software and using data and AI to solve problems that make everyday life a bit easier.

hi@jonasjansen.com Aachen, Germany

Experience

Software Developer Data Science

2024 – Present

CIMSOURCE GmbH

  • Extending a platform for digital tooling data, including exports into different CAM systems.
  • Building a real-time price crawler for tooling data to fetch prices from more than 200 shops.
  • Developing AI systems that analyse tooling data (text, image, 3D), apply rule sets, and convert it into standard‑compliant formats, exposed via a chatbot interface.

Full-Stack Developer

2021 – 2024

Y1 Digital AG

  • Led development of Magento 2–based e‑commerce projects from implementation to launch.
  • Took technical ownership as lead developer, including architecture decisions and code reviews.
  • Worked directly with clients to refine requirements, plan releases, and prioritize features.
  • Improved existing shops with a focus on performance, reliability, and maintainability.

Full-Stack Developer

2016 – 2021

code4business Software GmbH

  • Developed e‑commerce solutions based on Magento and Magento 2.
  • Implemented frontend and backend features, including custom extensions, integrations, and other adaptations.
  • Planned and carried out migrations of existing shops to Magento 2.

Education

Master of Computer Science in Data Science

2022 – 2024

University of Illinois at Urbana Champaign

Bachelor of Science in Wirtschaftsinformatik

2017 – 2021

FOM Hochschule für Oekonomie & Management

IT Specialist for Application Development

2015 – 2016

code4business Software GmbH

Skills & Expertise

Programming Languages

PythonC#JavaScriptPHPRSQL

Web Development

ASPHTML/CSSNode.jsVue.jsAstro

Data Science

Machine LearningStatisticsData VisualizationTensorFlowPandasPyTorch

Tools & Platforms

GitDockerAWSMariaDB

Certificates

Google Data Analytics

Google

Accelerated Computer Science Fundamentals

University of Illinois at Urbana Champaign

Adobe Certified Professional—Adobe Commerce Developer

Adobe