He is one half of the production team Espionage, and together with his long time partner Amund Bjorklund he has written and/or produced songs for artists like Taylor Swift, Beyoncé, Train, Jennifer Hudson, Emeli Sande and Selena Gomez.

His commercial breakthrough came in 1997 with the single "When Susannah Cries" which was a hit in several European and Latin American countries, including Norway where it was number one for six weeks.

In 2006 Lind, together with fellow Norwegian artists Kurt Nilsen (World Idol winner), Alejandro Fuentes and Askil Holm released the concert album Hallelujah Live, featuring songs from the foursome's solo records as well as several songs by other artists, most notably a cover version of Leonard Cohen's "Hallelujah".

During the past few years Espen Lind has done a lot of writing and producing, most notably as co-writer of "Irreplaceable" by Beyoncé and "Drive By" and "Hey, Soul Sister" by Train.

Together with writing partner Amund Bjørklund in the production team Espionage he has also written and/or produced songs for artists Lionel Richie, Ne-Yo, Chris Brown and Leona Lewis.