Jerome d'Ambrosio will make his F1 debut in 2011 alongside Timo Glock, the Virgin team announced on Tuesday.
We reported earlier this month that the 24-year-old Belgian d'Ambrosio was on the verge of securing the second race cockpit, which in 2010 was occupied by fellow rookie Lucas di Grassi.
D'Ambrosio, reportedly bringing $5m to the new British team and managed by the Eric Boullier-led Gravity group, completed this season as Virgin's Friday driver and was recently only awaiting the approval of team partner Marussia for the 2011 ride.
"He has secured this seat absolutely on merit and I think coupled with Timo we have the perfect blend of youth, experience, speed and potential and we can't wait to see what they can achieve together next season," said team boss John Booth.
Booth thanked the departing di Grassi, who last weekend won Felipe Massa's annual charity kart event in Florianopolis and is now seeking a F1 role for 2011.
Virgin will launch its next car, the VR-02, prior to the first group test of the pre-season at the beginning of February.