# Timothy Daniell, Permutable

Timothy Daniell is the founder of analytics and experimentation agency, Permutable. Timothy studied Mathematics at the University of Warwick, and afterwards joined the sports betting exchange Betfair to work on various probabilistic modelling challenges. Moving into product management, he was part of the team who released the market-defining "Cash Out" feature. At Berlin language learning startup Babbel, he built the payments platform and data science team.

Source: https://amplitude.com/en-us/blog/author/timothy-daniell

---

##### Timothy<!-- --> <!-- -->Daniell

Founder, Permutable

Timothy Daniell is the founder of analytics and experimentation agency, Permutable. Timothy studied Mathematics at the University of Warwick, and afterwards joined the sports betting exchange Betfair to work on various probabilistic modelling challenges. Moving into product management, he was part of the team who released the market-defining "Cash Out" feature. At Berlin language learning startup Babbel, he built the payments platform and data science team.

[](https://www.linkedin.com/in/timothydaniell/)

#### Posts by <!-- -->Timothy

[Read ](/blog/build-retention-model)

[Customers](/blog/build-retention-model)

###### [How to Build a Retention Model](/blog/build-retention-model)

[Jul 11, 2023](/blog/build-retention-model)

[14 min read](/blog/build-retention-model)