Sebastian Witowski
Python Consultant at Leading European Renewable Energy Company
Krakow, Lesser Poland Voivodeship
Summary
👤
Senior🎓
Top SchoolSebastian Witowski is a Python consultant with 12 years of experience building full-stack systems for high-profile organisations including CERN, MUFG, and leading European renewable energy firms. He combines deep backend expertise—REST APIs, MongoDB, Celery, and ETRM integrations—with hands-on platform ownership, having led core data model redesigns that cut code complexity by over 80% and introduced modern CI/CD and testing practices. A prolific community educator and speaker, he has given 20+ talks at major Python conferences and created a best-selling course on modern Python project workflows. Based in Krakow, he brings a pragmatic blend of developer mentorship, UX-minded product improvements, and automation-first solutions that reduce manual work and improve regulatory compliance in trading systems. An often-overlooked strength is his ability to translate complex quantitative needs into user-friendly tools, such as custom Jupyter notebooks and Excel import/export utilities that accelerate adoption across non-technical teams.
12 years of coding experience
10 years of employment as a software developer
Master project Computer Science, Master project Computer Science at Grenoble Institute of TechnologyMaster of Science (MSc) Automation and Robotic (Specialization: Computer Science in Control and Management), Master of Science (MSc) Automation and Robotic (Specialization: Computer Science in Control and Management) at AGH University of Krakow
Polish, English, French
Stackoverflow
13reputation
82reached
0answers
1question
Github Skills (200)
notebook10
uploading10
python10
ipython10
cds10
webextension10
fingerprinting10
registers10
flask10
desktop-application10
json-converter10
application10
jupyter10
finder10
eve-online10
Programming languages (11)
Github contributions (5)
switowski/dotfiles
Dec 2013 - Apr 2022
Contributions:162 commits, 80 pushes, 4 branches in 8 years 5 months
switowski/cds-demosite
Feb 2015 - Jul 2018
Access articles, reports and multimedia content in HEP
Contributions:1 PR, 177 pushes, 73 branches in 3 years 5 months
reportsmultimediahep
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