Tim Glaser in

Tim Glaser

building stuff at PostHog
📍 United Kingdom

Tim Glaser is the technical Co-Founder and CTO of PostHog, an open-source analytics platform that graduated from Y Combinator. He leads all technical strategy and architecture, drawing from his experience progressing from an engineer to R&D Manager at Arachnys. He is a strong advocate for developer-focused tools and transparent company culture.

A technologist from a very young age, Tim began coding at 11 and was getting paid for his work by 13. This early passion for building software has defined his career, leading him to contribute to open-source projects long before co-founding his own successful company.

Interesting fact: Tim and his co-founder built and launched the first version of PostHog in less than four weeks while participating in Y Combinator.

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Current Role
building stuff
Location
United Kingdom
Personality Overview
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Priorities

Topics Tim cares about

Open-Source Ethos
Believes building in the open is a core growth strategy, stating that "transparency builds trust — and trust becomes distribution."
Scalable Data Systems
Has deep expertise in data architecture, leading PostHog's migration to ClickHouse to handle billions of events and improve query performance for customers like Y Combinator.
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Career

Work history

7-2019
building stuff
PostHog
3-2018 - 6-2019
Engineering stuff
Arachnys
10-2016 - 3-2018
Product Manager
Arachnys
4-2015 - 10-2016
Engineer
Arachnys
6-2012 - 12-2012
JS Developer
Cloud9 IDE
In the press

Media appearances

Open Source Product Analytics With PostHog. Featured in Python Podcast
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Engineering Leaders with Tim Glaser, CTO @PostHog. Featured in YouTube
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Education
W20
Y Combinator
Social presence
in

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