From 2005 to 2007, she was the Corporate Consulting Engineer at Cisco Systems. She worked at Verisign for four years as a Director of Directory Research. Leslie has also held several positions ar Bunyip, and worked there from 1992 to 1997.
Ms. Daigle has contributed actively to help in the Internet's Technical Evolution. She was an appointed member of the IAB from 2000 to 2008. She has also been the chair of IAB. Leslie has been a strong promoter of the development of Internet identifiers and directory systems, which allow for the creation of standards-based, interoperable application protocols to support end-users across the Internet in their use of remote resources.
She has been a panelist of the National Science Foundation's review committee, evaluating Internet-related research proposals submitted for funding. She is also said to be one of the most powerful women of the Internet.
Recently, she published standards for DNS-based application service discovery.
Ms. Daigle holds an MSc in Computing and Information Science from the University of Guelph, and a BSc in Computer Science from McGill University.