Alexander Rossi has joined the Marussia Formula 1 team as reserve driver for the rest of the 2014 season.
The 22-year-old parted company with Caterham earlier this month having been its F1 reserve as well as racing for its GP2 squad.
But after landing a one-off seat with Campos Racing in GP2 for last weekend's Hockenheim round of the series, he has now found a new F1 role with Marussia.
"Since my initial discussions with the Marussia F1 team management, I've felt right at home," said Rossi.
"I'm looking forward to working with the team in Hungary and building for the rest of the season.
"The timing of my affiliation with the team is perfect, especially beginning before the summer break."
Rossi also confirmed that there are "plans" for him to appear in Friday morning practice for Marussia later in the season.
Having appeared on Friday morning for Caterham in the United States Grand Prix last year, one of four appearances for the squad, it is likely he will appear on home soil.
But the team has yet to confirm his programme, stating that he will focus initially on working with the engineers.
"He is a proven talent whom we have observed in GP2 and we have also been impressed by his performances during Friday morning free practice sessions over the past two seasons," said team principal John Booth.
"The US is an exciting market for the sport and Alexander has a great deal of support there, so it is nice to develop new links to that audience.
"Alexander will be an integral part of the team, immersing himself in our engineering activity so that he is fully prepared should he ever be required to deputise for one of the race drivers."
Rossi paid tribute to the progress made by Marussia to establish itself in the top 10 in the constructors' championship.
"Marussia is in an exciting place right now and the progress at the team is clear for all to see," he said.
"I'm thrilled that now I have the chance to be part of that journey, to progress and play a useful role in the development of the team."