Dagenham & Redbridge have agreed a deal to sign Liam O'Brien after the goalkeeper was released by Brentford.
O'Brien, 22, who did not make a senior appearance after joining the Bees last August, has signed a two-year contract.
O'Brien began his career at Portsmouth but joined Barnet in January 2011 and went on to feature 23 times for the north London side.
Daggers boss Wayne Burnett released senior keepers Chris Lewington and Jordan Seabright earlier this month.
O'Brien, a former England Under-19 international, posted on Twitter: "It's now a new chapter of my life and I can't wait for the start of the new season for the great opportunity I have playing for the Daggers."