About
Built by an engineer who needed it.
Years of running distributed systems taught me the same lesson over and over: the model shifts under you, and then the argument about whether it shifted takes longer than the fix. Actuary exists so that nobody in that argument has to take anyone’s word for anything. The evidence is signed, and you can check it on your own machine.
Who
The same problem followed me across three industries.
I am an engineering lead. I have built and run distributed systems at Amazon, J.P. Morgan and Healf. Different companies, different stacks, the same failure every time: something underneath production changes, and your users notice before you do.
At that scale you learn what it costs to make a claim that holds up, and what it is worth in a room full of people who do not agree with you. Actuary is the thing I wanted to have in those rooms: rules written down before the data arrived, an alarm that states how often it is allowed to be wrong, and a file a sceptical colleague can check without having to trust me.
Independence
Funding
No model provider pays us anything. If that ever changes, the funding note on every page it touches changes the same day. We would rather tell you who pays us than claim to be above it.
Corrections
When we get something wrong, the correction goes up beside the mistake instead of quietly replacing it, and it gets its own entry in the register. The same goes for our methods: the stress test where our own detector fails is published with the product, not buried in an appendix.
Right of reply
If we name you, you hear it from us first.
Any provider we name gets the finding 72 hours before we publish it, and whatever they say back is linked from the entry itself.
Contact
The quickest way to reach a person is the intake form. It comes straight to me and I answer it myself. If you want us to show you or delete what we hold about you, say so there — the data practices page lists exactly what that is.