Karol Horosin
Staff Software Engineer at Polly
Krakow, Lesser Poland Voivodeship
Summary
👤
Senior🎓
Top SchoolKarol Horosin is a Staff Software Engineer based in Krakow with nine years of experience building high-throughput, data‑heavy systems and leading engineering teams from startup to scale. He combines hands‑on expertise in Python, Django, Kubernetes and AWS with product-facing work in Vue/TypeScript, having shipped financial and cybersecurity platforms that process billions of events and complex pricing/risk pipelines. As a former Head of Engineering and co-founder of AI-driven startups, he bridges research, ML model development (audio and text) and production engineering—designing end‑to‑end ML systems, bespoke data pipelines and GPU-enabled workflows. Known internally as the “code review king,” he mentors teams, formalizes management frameworks, and translates ambiguous product needs into reliable technical solutions. Notably, he has taken prototypes from lab‑grade research (neuroscience and biotech) into deployable cloud services, showing a rare comfort across science, ML and ops.
9 years of coding experience
11 years of employment as a software developer
Master of Engineering - MEng Applied Computer Science, Master of Engineering - MEng Applied Computer Science at AGH University of Krakow
Polish, English
Stackoverflow
79reputation
234kreached
1answer
0questions
Github Skills (106)
mysql-database10
mongodb10
minio9
couchdb9
postgresql9
databases9
heroku9
redis9
docker9
php9
mysql9
jupyter9
netlify9
nodejs9
vscode9
Programming languages (8)
Github contributions (5)
horosin/mcod-backend
Sep 2019 - Dec 2023
For of dane.gov.pl portal
Contributions:2 PRs, 1 push, 2 branches in 4 years 3 months
govdaneportal
horosin/multiprocessing-tutorial
Mar 2018 - Oct 2019
Contributions:3 commits, 2 pushes, 1 branch in 1 year 6 months
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