Max Chilton has been appointed as Marussia's reserve driver for the remainder of the season.
The GP2 frontrunner will start work with the team from the next race in Japan, with the final race of his campaign taking place in Singapore this weekend.
Chilton already has experience of the Marussia car, having driven for the team at the Young Driver Test at Silverstone earlier this year.
Speaking about his new role, Chilton said: "I'm delighted to be given this fantastic opportunity to be part of the Marussia F1 Team for the remainder of the 2012 season.
"My experience with the team at Silverstone for the Young Driver Test was a great taste of how F1 operates, and I'm so excited to be able to extend that into a proper working relationship as Reserve Driver at the remaining F1 events this year.
"I feel like my racing has really matured this season and to now be able to combine that with real insight into the engineering activities of an F1 team, and the level of preparation required of an F1 driver, really moves my career onto the next level. I'd like to thank the team once again for this opportunity."