Juraj Majerik
Team Lead Experiments at PostHog
Amsterdam, North Holland, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolJuraj Majerik is a full stack engineer with nine years of experience building data-driven web products, currently contributing at PostHog from Amsterdam. He has led cross-functional teams and shipped production alerting systems that process millions of articles weekly, combining Node.js/TypeScript backends, ElasticSearch, and custom front-end frameworks. At Owlin he drove product direction, client onboarding (including Nike and KPMG), and robust monitoring practices, and has hands-on experience with Go workers, RethinkDB, and cloud storage exports. With a background in finance and international business, he blends product-minded engineering with analytics-focused systems design. Colleagues know him for turning complex ingestion pipelines into polished MVPs on tight timelines and for a practical emphasis on observability and client feedback.
9 years of coding experience
5 years of employment as a software developer
Bachelor of Science - BS, International Business, Bachelor of Science - BS, International Business at Vrije Universiteit Amsterdam (VU Amsterdam)
Czech, Russian, Slovak, Dutch, English
Github Skills (34)
javascript10
observability10
npm10
cdp10
python10
data-warehouse10
css10
typescript10
posthog10
feature-flags10
math10
web-analytics10
session-replay10
analytics10
ab-testing10
Programming languages (6)
Github contributions (5)
jurajmajerik/blog
Dec 2021 - Nov 2024
Documenting my process of building *rides*
Contributions:7 PRs, 125 pushes, 1 branch in 3 years
jurajmajerik/rides
Nov 2022 - Nov 2024
A full-stack simulation of a ridesharing app
Contributions:403 pushes, 24 branches, 1 comment in 2 years
full-stacksimulation
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