Darren is a Staff Engineer in the Solaris Security Technologies Group (part of Solaris Software). He is one of the architects/leads for the Solaris Cryptographic Framework in the Solaris 10 OS. He is also involved in Smartcard and various other security releated technologies/features for Solaris 10. He is one of the developers/architects for PAM. He was the technical lead for the Flexible crypt(3c) [ Linux/BSD crypt(3c) compat ] and Secure Shell for Solaris 9 projects.

His previous roles in Sun before joining Solaris engineering were in Sun SunServices doing Trusted Solaris and general OS security support and in Solaris sustaining engineering supporting the NFS, Nameservices and Kerberos features.

Before Joining Sun he worked as an analyst/programmer for the UK Ministry of Defence. He is a graduate of the Computing Science Department of Glasgow University.