diff --git a/content/evenementen/sprekers/david-venhoek.md b/content/evenementen/sprekers/david-venhoek.md
index 9fbc29c..928f784 100644
--- a/content/evenementen/sprekers/david-venhoek.md
+++ b/content/evenementen/sprekers/david-venhoek.md
@@ -10,3 +10,6 @@ title: "David Venhoek"
 type: person
 ---
 
+David is technical lead on the ntpd-rs implementation of NTP and the statime implementation of PTP. He has a double masters in both physics and the mathematical foundations of computer science, and has previously worked on the cryptography behind anonymous credentials for Yivi (previously IRMA).
+
+As part of his work on ntpd-rs, he also participates in the IETF NTP Working Group, contributing to the next version of NTP.