# Jan Schwenzien

> Jan Schwenzien is a startup investor at test IO (Berlin). See 0 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [test IO](https://shizune.co/investors/profile/testcloud-de)
- Location: Berlin, Germany
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/janschwenzien

Jan Schwenzien is a startup investor at test IO in Berlin. Jan Schwenzien, CTO of test IO, focuses on Ruby on Rails coding, and is responsible for ensuring that the heart of test IO, the software testing platform, keeps running. He enjoys programming and looks back fondly on his many years as a freelance developer in many world-renowned start-ups..

## About test IO

VC Fund · San Francisco, United States

Formerly Known as Testcloud. test IO has been at the center of crowdtesting: the future of software quality assurance. The combination of top-notch testers around the world and innovative technology is backed our team’s cutting-edge ideas and execution.

2 contacts available at test IO.

| Name | Title | Profile |
| --- | --- | --- |
| Jan Schwenzien | CTO | https://shizune.co/investors/profile/jan-schwenzien |
| Thomas Gruederich | Co-founder & Chief Sales Officer (test IO got acquired by epam in 2019) | https://shizune.co/investors/profile/thomas-gruderich |

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